Waterproof structure and method for installing waterproof structure

Abstract

To prevent water immersion in a laying section of a rail.SOLUTION: A waterproof structure is composed of: a rail 1; a lower-side waterproof wall formed by a space S that is almost as high as the rail 1 and is formed among left and right wall bodies 3 erected on both sides of the rail 1, a side face 1' of the rail 1, and a depth surface 33 of the wall bodies 3, and a waterproof block assembly 5 formed by filling the space S with multiple waterproof blocks 8, 9 in a close-fitting manner, with the top surface being substantially level with the rail 1 and the wall bodies 3; and a waterproof panel 7 attached to a top face of the lower-side waterproof wall.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a waterproof structure, and more particularly to a waterproof structure for a rail installation. [Background technology]

[0002] In recent years, typhoons and sudden downpours caused by weather changes have become more frequent, resulting in an increasing number of cases of flood damage caused by river flooding and inland water overflow. Normally, when closing a building opening in a waterproof state to prevent water from seeping inside, a flood prevention door is installed at the building opening. However, when it is desired to prevent water from seeping in where rails are laid (for example, when it is desired to prevent water from seeping in a train depot where trains are stored), it is difficult to create a waterproof structure using a door body because the rails are present on the ground. Patent Document 1 discloses a sliding flood gate, but there is a risk of water seeping in through the gap between the road rail and the rails on which the door body runs, or through the bottom edge of the door body.

[0003] Conventionally, waterproofing measures have been taken by piling sandbags next to the rails, but gaps can form between the sandbags and the rails, which creates a problem in that as the water level rises, the water pressure also increases, resulting in greater leakage. [Patent Document 1] Jitsuaki 47-27784 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] The present invention aims to prevent water from entering the area where the rail is laid. [Means for solving the problem]

[0005] The technical means adopted by the present invention are: Rails and Left and right bodies that are approximately the same height as the rail and are erected on both sides of the rail; a space formed between a side surface of the rail and a side surface of the body; a waterproof block assembly formed by closely filling a plurality of waterproof blocks into the space, the upper surface of which is at approximately the same height as the rail and the body; a lower waterproof wall formed from A waterproof panel attached to the upper surface of the lower waterproof wall; Consists of: It has a waterproof structure.

[0006] In one embodiment, a pair of support columns are provided on the left and right bodies at a distance in the viewing direction and have opposing guide grooves, The waterproof panel is attached in close contact with the upper surface of the lower waterproof wall via a watertight member provided at the lower end, and is attached in close contact with the guide groove via watertight members provided at both widthwise ends and / or within the guide groove. In one embodiment, the waterproof panel is provided with watertight members on three sides at both widthwise ends and at the bottom end.

[0007] In one embodiment, the waterproof block assembly includes a first waterproof block and a second waterproof block, and is formed by combining the first waterproof block and the second waterproof block so that their inclined surfaces are in close contact with each other, a first side surface of the first block and a second side surface of the second block each form a side surface of the waterproof block assembly, one side surface being in close contact with a side surface of the rail and the other side surface being in close contact with a side surface of the body; The lower surfaces of the first block and the second block form the lower surface of the waterproof block assembly and are in close contact with the bottom surface of the space.

[0008] In one embodiment, the first waterproof block has a first side surface that is in close contact with a side surface of the rail, a first inclined surface that slopes downward so as to move away from the rail, a first upper surface, and a first lower surface; The second waterproof block has a second side surface that is in close contact with the side surface of the body, a second inclined surface that slopes downward to approach the side surface of the body, a second upper surface, and a second lower surface; the first inclined surface of the first waterproof block and the second inclined surface of the second waterproof block are in close contact with each other, an upper surface of the waterproof block assembly is formed by the first upper surface of the first waterproof block and the second upper surface of the second waterproof block; The first lower surface of the first waterproof block and the second lower surface of the second waterproof block form a lower surface of a waterproof block assembly, and the lower surface of the waterproof block assembly is in close contact with the bottom surface of the space.

[0009] In one embodiment, the waterproof block assembly includes a third waterproof block, The third waterproof block has a rail-side inclined surface, a body-side inclined surface, and a third upper surface, The second waterproof block has a recessed portion formed therein, When the first waterproof block and the second waterproof block are in close contact with each other, the third waterproof block is fitted between the recessed portion and the first inclined surface of the first waterproof block, The rail-side inclined surface of the third waterproof block is in close contact with the first inclined surface of the first waterproof block, the body-side inclined surface is in close contact with the bottom surface of the concave portion, and the third upper surface forms part of the upper surface of the waterproof block assembly.

[0010] In one embodiment, the space is formed laterally on one side of the rail, and the bottom surface of the space is located at an intermediate height of the rail; The other side of the rail is closed by the body.

[0011] In one aspect, the body has a first visible surface and a second visible surface extending downward from both ends of the bottom surface in the prospective direction, A lower protruding piece is formed on the end of the lower surface of the waterproof block assembly in the projection direction, the lower protruding piece being in contact with or closely facing at least the first projection surface. In one embodiment, a pair of lower protruding pieces are formed at the end of the lower surface of the waterproof block assembly in the projection direction, the lower protruding pieces being in contact with or closely facing the first and second visible surfaces. In one embodiment, the lower protrusion consists of a first lower protrusion formed at the prospective end of the lower surface of the first waterproof block, and a second lower protrusion formed at the prospective end of the lower surface of the second waterproof block.

[0012] In one aspect, the contact surfaces between the waterproof block assembly and the surface forming the space, and the contact surfaces between the waterproof blocks forming the waterproof block assembly, are at least partially provided with watertight members to prevent water from entering in the forward direction through the contact surfaces. In one embodiment, the first side surface, the first inclined surface, and the first lower surface of the first waterproof block are formed from a watertight material. In one embodiment, the second side surface of the second block body is formed from a watertight member. In one embodiment, a recess is formed in the second waterproof block, and the inclined surface that is the bottom surface of the recess is made of a watertight material.

[0013] The technical means adopted by the present invention are: Left and right bodies are erected on both sides of the rail so as to form a space on at least one side of the rail, a first waterproof block having a first side surface and a first inclined surface is inserted into the space with the first side surface in close contact with one side surface of the rail and the first inclined surface inclined downward so as to be away from the rail; a second waterproof block having a second side surface and a second inclined surface is inserted between the first inclined surface and the side surface of the body, and the second inclined surface is brought into close contact with the first inclined surface and the second side surface is brought into close contact with the side surface of the body, thereby closing off the space and forming a lower waterproof wall; A waterproof panel is attached to the upper surface of the lower waterproof wall. A method for installing a waterproof structure.

[0014] In one embodiment, the first waterproof block has a first upper surface and a first lower surface, and when the first waterproof block is inserted into the space, the first lower surface is in close contact with a first portion of a bottom surface of the space; the second waterproof block has a second upper surface and a second lower surface, and when the second waterproof block is inserted between the first inclined surface and the side surface of the body, the second lower surface comes into close contact with a second portion of the bottom surface of the space; The upper surface of the lower waterproof wall is formed from the upper surface of the rail, the upper surfaces of the left and right bodies, the first upper surface, and the second upper surface, and a waterproof panel is attached to the upper surface of the lower waterproof wall. It should be noted that when surfaces are in close contact with each other, this includes cases where they are in close contact via a watertight member. Specifically, examples include cases where a predetermined portion of the surface of the block is made of a watertight member, and cases where a watertight member is provided at a predetermined portion of the surface of the space.

[0015] In one embodiment, a recess is formed in the second waterproof block, A third waterproof block having a rail-side inclined surface, a body-side inclined surface, and a third upper surface is inserted between the concave portion and the first inclined surface of the first waterproof block when the first waterproof block and the second waterproof block are in close contact with each other, so that the rail-side inclined surface is in close contact with the first inclined surface of the first waterproof block and the body-side inclined surface is in close contact with the bottom surface of the concave portion, and the third upper surface forms part of the upper surface of the waterproof block assembly.

[0016] In one embodiment, a pair of support columns are erected on the left and right bodies at a distance in the viewing direction, The waterproof panel is attached in a state where it is in close contact with the upper surface of the lower waterproof wall via a watertight member provided at the lower end, and is in close contact with the guide groove via watertight members provided at both widthwise ends and / or within the guide groove.

[0017] In one embodiment, in the step of forming the lower waterproof wall, the second upper surface is located above the upper surface of the lower waterproof wall, By pressing the upper surface of the lower waterproof wall downward with the waterproof panel, the second waterproof block is pressed downward with its second inclined surface sliding against the first inclined surface of the first waterproof block, and part of the force pressing the second waterproof block downward acts horizontally, causing the first side of the first waterproof block to adhere to one side of the rail and the second side of the second waterproof block to adhere to the side of the main body.

[0018] In one embodiment, in the step of forming the lower waterproof wall, the third upper surface is located above an upper surface of the lower waterproof wall, By pressing the upper surface of the lower waterproof wall downward with the waterproof panel, the third waterproof block is pushed downward with its rail-side inclined surface sliding against the first inclined surface of the first waterproof block, and its body-side inclined surface sliding against the second inclined surface of the second waterproof block, and part of the force pressing the third waterproof block downward acts horizontally, causing the first side of the first waterproof block to adhere to one side of the rail and the second side of the second waterproof block to adhere to the side of the body.

[0019] The technical means adopted by the present invention are: A method for installing a waterproof structure by sealing the space formed between the side of the rail and the side of the body with a waterproof block, a first step of filling the space with a plurality of waterproof blocks each having an inclined surface in a tightly packed state with the inclined surfaces abutting against each other to close the space with a waterproof block assembly, thereby forming a lower waterproof wall; a second step of attaching a waterproof panel to the upper surface of the lower waterproof wall, In the second step, by pressing at least one waterproof block downward with the waterproof panel, the at least one waterproof block is pressed downward while the inclined surfaces are in sliding contact with each other, and part of the force pressing the waterproof block downward acts horizontally via the inclined surfaces, so that the side of the waterproof block assembly comes into close contact with the surfaces forming the space. A method for installing a waterproof structure. [Effects of the Invention]

[0020] According to the present invention, by installing a waterproof structure in the area where the rails are laid, it is possible to install a dike that prevents water from flooding the rail depot. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 2 is a front view of the waterproof structure according to the embodiment. [Figure 2] FIG. 1 is a plan view of a waterproof structure according to an embodiment of the present invention. [Figure 3] FIG. 2 is a partially enlarged view of the rail portion in FIG. [Figure 4] FIG. 3 is a partially enlarged view of the rail portion in FIG. 2. [Figure 5] FIG. 3 is a partially enlarged view of a side support portion in FIG. 2. [Figure 6] FIG. 3 is a partially enlarged view of the central support pillar portion in FIG. 2. [Figure 7] 2 is a cross-sectional view taken along the line A in FIG. 1 (rails are omitted), where the left figure shows a waterproof block assembly according to a first embodiment, and the right figure shows a waterproof block assembly according to a second embodiment. [Figure 8] 3 is a view showing a block body of a first waterproof block of the waterproof block assembly according to the first embodiment. FIG. [Figure 9] 3A and 3B are diagrams showing a first waterproof block of the waterproof block assembly according to the first embodiment. [Figure 10] 4 is a view showing a block body of a second waterproof block of the waterproof block assembly according to the first embodiment. FIG. [Figure 11] FIG. 4 is a view showing a second waterproof block of the waterproof block assembly according to the first embodiment. [Figure 12] 5A to 5C are diagrams showing a method of filling the waterproof block assembly according to the first embodiment. [Figure 12A] FIG. 13 is a partially enlarged view of the lower part of FIG. [Figure 13] The upper figure is a plan view showing the filling structure of the waterproof block assembly according to the first embodiment, and the lower figure is a front view of the same. [Figure 14]FIG. 8 is an enlarged view of the lower end portion of the left view of FIG. 7, and is a vertical cross-sectional view showing the filling structure of the waterproof block assembly according to the first embodiment. [Figure 15] FIG. 10 is a view showing a block body of a first waterproof block of a waterproof block assembly according to a second embodiment. [Figure 16] FIG. 10 is a view showing a first waterproof block of a waterproof block assembly according to a second embodiment. [Figure 17] FIG. 10 is a view showing a block body of a second waterproof block of the waterproof block assembly according to the second embodiment. [Figure 18] FIG. 10 is a view showing a second waterproof block of the waterproof block assembly according to the second embodiment. [Figure 19] FIG. 10 is a view showing a third waterproof block of the waterproof block assembly according to the second embodiment. [Figure 20] 10A to 10C are diagrams showing a method of filling a waterproof block assembly according to a second embodiment. [Figure 20A] FIG. 21 is a partially enlarged view of the lower part of FIG. 20. [Figure 21] The upper figure is a plan view showing the filling structure of the waterproof block assembly according to the second embodiment, and the lower figure is a front view of the same. [Figure 22] FIG. 8 is an enlarged view of the lower end portion of the right view of FIG. 7, and is a vertical cross-sectional view showing the filling structure of the waterproof block assembly according to the second embodiment. [Figure 23] 10A and 10B are diagrams showing the installation process of a waterproof structure using a waterproof block assembly according to a second embodiment, illustrating the insertion of a first waterproof block. [Figure 24] 10A and 10B are diagrams showing the installation process of a waterproof structure using a waterproof block assembly according to a second embodiment, illustrating the insertion of a second waterproof block. [Figure 25] 10A and 10B are diagrams showing the installation process of a waterproof structure using a waterproof block assembly according to a second embodiment, illustrating the insertion of a third waterproof block and the installation of a waterproof panel. DETAILED DESCRIPTION OF THE INVENTION

[0022] [A] Overall waterproof structure This embodiment relates to a waterproofing structure for a rail installation. As shown in Figures 1 and 2, a pair of rails 1 are laid parallel to the ground, and a waterproofing structure is removably installed at a predetermined position along the rail 1's length. Some elements of the waterproofing structure according to this embodiment are permanent elements permanently installed as a framework. By removably attaching the disassembled elements that make up the waterproofing structure to the permanent elements, a levee extending perpendicular to the rail 1 can be formed. Specifically, the rail 1, the framework underside 2, the wall 3 extending perpendicular to the rail 1, and the left and right side walls 4 extending parallel to the rail 1 are permanent elements. The waterproofing block assembly 5, consisting of multiple waterproofing blocks, the multiple support columns (center columns) 6, the support columns (vertical frames) 6A, and one or more waterproof panels 7 are removable elements. The left and right support columns 6A, excluding the central support column 6, may be permanent elements.

[0023] The waterproof structure according to this embodiment comprises a rail 1, left and right frames (walls 3) erected on either side of the rail 1 and approximately the same height as the rail 1, a space S formed between one side surface 1' of the rail 1 and a side surface (projected surface 33) of the wall 3, a lower waterproof wall formed by packing a plurality of waterproof blocks tightly into the space S and a waterproof block assembly 5 whose upper surface is located approximately at the same height as the rail 1 and the wall 3, and one or more waterproof panels 7 attached to the upper surface of the lower waterproof wall and to the upper space formed between left and right supports 6, 6A erected on the upper surface of the lower waterproof wall (upper surface 100 of the rail 1, upper surface 32 of the wall 3, and upper surface of the waterproof block assembly 5). In the embodiment shown in FIG. 1, three waterproof panels 7 are stacked in the vertical direction to correspond to the expected water level. The waterproof structure of this embodiment forms a sort of embankment, and in Figure 2, the upper side of the embankment is inside the embankment and the lower side is outside the embankment. In this embodiment, a vehicle depot for storing trains is located inside the embankment.

[0024] [B] Rail As shown in Figure 3, in a cross-sectional view, the rail 1 comprises a head 10 having a first width, a base or bottom 11 having a second width greater than the first width, and a narrow rising portion or web 12 extending between the head 10 and the bottom 11. The side 1' of the rail 1 comprises a substantially vertical upper portion (the side of the head 10), an inclined lower portion (the side of the bottom 11), a substantially vertical middle portion (the side of the web 12), an upper curved portion (upper neck) 13 between the upper and middle portions, and a lower curved portion (lower neck) 14 between the lower and middle portions. The shape of the rail 1 is standardized, and the upper curved portion (upper neck) 13 and the lower curved portion (lower neck) 14 each have a predetermined R shape.

[0025] [C] Framework In this specification, the structure on which the rail 1 is laid and the structure surrounding the rail 1 are referred to as the body. The rail 1 is laid on the ground or floor. A support structure is buried below the ground or floor, located below the rail 1. A detailed description of the support structure will be omitted. In this specification, the ground or floor and the support structure are collectively referred to as the underside of the body 2.

[0026] Left and right walls 3 are erected on the underside 2 of the body, positioned on either side of the rail 1, leaving the running areas for the train wheels. The wall 3 has approximately the same height as the rail 1, and extends in a direction perpendicular to the rail 1. The wall 3 has an outer sight surface 30 consisting of a vertical surface, an inner sight surface 31 also consisting of a vertical surface, and an upper surface 32 consisting of a horizontal surface, and the height position of the upper surface 32 is approximately the same as the height position of the upper surface 100 of the rail 1.

[0027] The walls 3 are located on both sides of the side surface 1' of the rail 1, and on one side surface 1' of the rail 1, a vertical visible surface 33 of one wall 3 faces, at a distance, the upper half or upper portion of the side surface 1' (the side surface of the head 10, the side surface of the upper neck 13, and the side surface at the upper end of the web 12), and a horizontal bottom surface 34 is formed between the mid-height position of one side surface 1' of the rail 1 and the visible surface 33. One wall 3 closes the lower half of one side surface 1' of the rail 1, and this portion of the wall 3 is low-profile, with the upper surface (i.e., the bottom surface 34) located lower than the upper surface 32. A space S is formed by the upper portion of the side surface 1' of the rail 1, the visible surface 33 of the wall 3, and the bottom surface 34 (see the upper diagram in Figure 12), and this space S forms the running area for the wheels of the vehicle. The other wall body 3 is in close contact with the other side surface 1' of the rail 1, blocking the other lateral space of the rail 1. In this embodiment, the space to be blocked by the waterproof block assembly 5 is minimized, thereby enabling the lower waterproof wall to be formed more quickly.

[0028] As shown in Figures 1 and 2, a pair of rails 1 are laid parallel to each other at a distance from each other, and walls 3 are erected to form spaces S facing each other on the right side of the left rail 1 and the left side of the right rail 1, with the pair of spaces S forming running sections for vehicle wheels from the pair of rails 1. In other words, the wall 3 is erected at approximately the same height as the rails 1 in a direction perpendicular to the longitudinal direction of the rails 1, excluding the running sections for the vehicle wheels.

[0029] In Figure 1, a left wall 3 is in close contact with the left side surface 1' of the left rail 1, and a wide portion 35 is integrally formed with the left wall 3 on the side away from the left rail 1, and a left side wall 4 is formed adjacent to the wide portion 35 and rising parallel to the rail 1. A support 6A is erected adjacent to the left side wall 4 on the left wide portion 35 of the wall 3 (see Figure 5).

[0030] A right wall 3 is in close contact with the right side surface 1' of the right rail 1, and a wide portion 35 is integrally formed with the right wall 3 on the side away from the right rail 1, and a right side wall 4 is formed adjacent to the wide portion 35 and rises parallel to the rail 1. A support 6A is erected adjacent to the right side wall 4 on the wide portion 35 on the right side of the wall 3.

[0031] A central wall 3 is provided between the left rail 1 and the right rail 1, excluding the left and right spaces S, and a wide section 36 is integrally formed in the center of the central wall 3 in the forward direction. A support post 6 is detachably attached to the wide section 36 on the left side of the wall 3 using a bolt 61 (see Figure 6).

[0032] [D] Waterproof block assembly The waterproof block assembly 5 is filled so as to close the space S formed by the upper portion of one side surface 1' of the rail 1, the visible surface 33 of the wall body 3, and the bottom surface 34. The waterproof block assembly 5 is filled in the space S so that one side is in close contact with the upper portion of the side surface 1', the other side is in close contact with the visible surface 33, and the bottom surface is in close contact with the bottom surface 34. The top surface of the waterproof block assembly 5 is at approximately the same height as the top surface of the rail 1. In the illustrated embodiment, the visible surface 33 is a vertical surface, the other side surface of the waterproof block assembly 5 is a vertical surface, the bottom surface 34 is a horizontal surface, and the bottom surface of the waterproof block assembly 5 is a horizontal surface, but the shapes of the other side surface and the bottom surface of the waterproof block assembly 5 can be different shapes corresponding to the shapes of the visible surface 33 and the bottom surface 34.

[0033] The waterproof block assembly 5 is formed by combining multiple waterproof blocks in close contact. The waterproof block assembly 5 comprises at least two waterproof blocks, and is formed when the inclined surface of one waterproof block is in close contact with the inclined surface of the other waterproof block. After inserting one waterproof block into the space S so that it is in close contact with the upper portion of one side surface 1' of the rail 1, the inclined surface of the other waterproof block is brought into sliding contact with the inclined surface of the one waterproof block and pushed into the space S1 between the inclined surface of the one waterproof block and the projected surface 33, thereby filling the space S with the waterproof block assembly 5.

[0034] When the other waterproofing block is pushed in, the inclined surfaces of the first and second waterproofing blocks slide against each other. At this time, part of the force pushing the second waterproofing block downward acts horizontally via the sliding inclined surfaces. Specifically, part of the force exerted when the second waterproofing block is pushed in acts in a direction that presses the side of the first waterproofing block against the upper portion of one side surface 1' of the rail 1 and in a direction that presses the side of the second waterproofing block against the projected surface 33 of the wall 3. The waterproofing block assembly 5 is formed from multiple waterproofing blocks. The side of each waterproofing block's projected surface (projected surface) closest to the side surface 1' of the rail 1 (the side farther from the projected surface 33) is referred to as the "inside," and the side farther from the rail (the side closer to the projected surface 33) is referred to as the "outside." Note that in the projected direction of the waterproofing structure as a levee, the outside of the levee is referred to as the outside, and the inside of the levee is referred to as the inside. Two examples of the specific configuration of the waterproofing block assembly 5 are disclosed in this specification.

[0035] [D-1] First Example A first embodiment of the waterproof block assembly 5 will be described with reference to Figures 8 to 14. In the first embodiment, the waterproof block assembly 5 is made up of a first waterproof block 8 and a second waterproof block 9. One side of the waterproof block assembly 5 is formed from the side (inner prospective surface 80) of the first waterproof block 8, and the other side is formed from the side (outer prospective surface 90) of the second waterproof block 9. The bottom surface is formed from the bottom surface 82 of the first waterproof block 8 and the bottom surface 92 of the second waterproof block 9 (the bottom surface 82 occupies most of the bottom surface of the waterproof block assembly 5, and the bottom surface 92 may be linear), and the top surface is formed from the top surface 83 of the first waterproof block 8 and the top surface 93 of the second waterproof block 9 (the top surface 93 occupies most of the top surface of the waterproof block assembly 5, and the top surface 83 may be linear).

[0036] One side, the other side, and the bottom of the waterproof block assembly 5 are formed from watertight members 86, 88, and 96 on three sides, preventing water from seeping in from the front through the contact surface between the waterproof block assembly 5 and the space S. The contact surface (contact surface) between the first waterproof block 8 and the second waterproof block 9 is formed by the contact between the first inclined surface (outer inclined contact surface 81) of the first waterproof block 8 and the second inclined surface (inner inclined contact surface 91) of the second waterproof block 9, and the surface of the first inclined surface of the first waterproof block 8 is formed from a watertight member 87, preventing water from seeping in from the front through the contact surface between the first inclined surface and the second inclined surface. The surface made up of the watertight members 86, 87, 88, and 96 only needs to be formed on at least the portion of the waterproof block assembly 5 facing the front.

[0037] [D-1-1] First waterproof block The first waterproof block 8 comprises a block body 8' and watertight members 86, 87, and 88 provided at predetermined locations on the surface of the block body 8'. As shown in Fig. 8, the block body 8' has an inner prospective surface 80 shaped to fit over the upper portion of the side surface 1' of the rail 1, an outer inclined prospective surface 81 facing the inner prospective surface 80 and extending downward so as to move away from the inner prospective surface 80, a horizontal lower surface 82, a horizontal upper surface 83, a vertical outer prospective surface 84, and a vertical inner prospective portion 85. The prospective dimensions of the first waterproof block 8 (block body 8') are larger than the prospective dimensions of the bottom surface 34 of the space S, and downwardly protruding protrusions 840 and 850 are formed on both ends of the lower surface 82 in the prospective direction.

[0038] Watertight members 86, 87, and 88 are provided on the inner prospective surface 80, the outer inclined prospective surface 81, and the underside 82 of the block main body 8', respectively. That is, as shown in FIG. 9 , the inner prospective surface, the outer inclined prospective surface, and the underside of the first waterproof block 8 are formed from the watertight members 86, 87, and 88, respectively. The watertight members 86, 87, and 88 are provided continuously on three sides of the surface of the first waterproof block 8 (the inner prospective surface 80, the outer inclined prospective surface 81, and the underside 82) except for the top surface 83. The watertight member 88 provided on the underside 82 has an extension 880 that extends beyond the bottom surface 82 in the prospective direction (away from the inner prospective surface). The top surface 83, the outer prospective surface 84, and the inner prospective portion 85 of the block main body 8' are the top surface 83, the outer prospective surface 84, and the inner prospective portion 85 of the first waterproof block 8.

[0039] The inner visible surface 80 (watertight member 86) of the first waterproof block 8 has a shape that corresponds to the upper portion of the side surface 1' of the rail 1, i.e., the side surface of the head 10, the side surface of the upper neck 13, and the upper end portion of the side surface of the web 12, and is adapted to fit closely to these portions. The underside 82 (watertight member 88) of the first waterproof block 8 fits closely to a first portion 340 of the bottom surface 34 of the space S, and the extension portion 880 of the watertight member 88 is adapted to be placed on a second portion 341 of the bottom surface 34. As will be described later, the underside 92 of the second waterproof block 9 fits closely to the extension portion 880 from above, causing the extension portion 880 to fit closely to the second portion 341 of the bottom surface 34.

[0040] When the first waterproof block 8 is inserted into the space S, the outer inclined projected surface (watertight member 87) of the first waterproof block 8 is inclined downward so as to move away from the rail 1, and a space S1 into which the second waterproof block 9 is inserted is formed between the outer inclined projected surface (watertight member 87), the projected surface 33 of the wall body 3, and the second part 341 (extension portion 880) of the bottom surface 34 (see the middle diagram in Figure 12).

[0041] When the first waterproof block 8 is inserted into the space S and the lower surface 82 abuts against the first part 340 of the bottom surface 34, the outer protruding piece 840 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34 in the projection direction, and the inner protruding piece 850 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34 in the projection direction.

[0042] The block main body 8' is formed from a harder material than the watertight members 86, 87, and 88. In this embodiment, the block main body 8' is formed from ABS resin, but the material is not limited as long as it has a predetermined hardness, and other resins or hard rubber materials may be used. The watertight members 86, 87, and 88 are formed from a sealing material whose main material is, for example, EPDM rubber foam. The watertight member 87 that forms the outer inclined prospective surface 81 of the first waterproof block 8 forms a sliding surface, and therefore is formed from a material that is more slidable than the watertight members 86 and 88 that form the inner prospective surface 80 and underside 82 of the first waterproof block 8.

[0043] [D-1-2] Second waterproof block The second waterproof block 9 comprises a block body 9' and a watertight member 96 provided at a predetermined portion on the surface of the block body 9'. As shown in Fig. 10, the block body 9' has an outer visible surface 90 (a vertical surface in the illustrated embodiment) shaped to fit the visible surface 33 of the wall 3, an inner inclined visible surface 91 facing the outer visible surface 90 and extending downward to approach the outer visible surface 90, a horizontal lower surface 92, a horizontal upper surface 93, a vertical outer visible surface 94, and a vertical inner visible portion 95. The visible dimensions of the second waterproof block 9 (block body 9') are larger than the visible dimensions of the bottom surface 34 of the space S, and downwardly protruding pieces 940, 950 are formed on both ends of the lower surface 92 in the visible direction.

[0044] When the second waterproof block 9 is inserted into the space S1 and the lower surface 92 abuts against the extension portion 880 on the second part 341 of the bottom surface 34, the outer protruding piece 940 abuts against or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34 in the projection direction, and the inner protruding piece 950 abuts against or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34 in the projection direction.

[0045] A watertight member 96 is provided on the outer visible surface 90 of the block main body 9'. That is, as shown in Fig. 11, the outer visible surface of the second waterproof block 9 is formed from the watertight member 96. The inner inclined visible surface 91, bottom surface 92, top surface 93, outer visible surface 94, and inner visible portion 95 of the block main body 9' are the inner inclined visible surface 91, bottom surface 92, top surface 93, outer visible surface 94, and inner visible portion 95 of the second waterproof block 9.

[0046] The block body 9' is formed from a harder material than the watertight member 96. In this embodiment, the block body 9' is formed from ABS resin, but the material is not limited as long as it has a predetermined hardness, and other resins or hard rubber materials may be used. The watertight member 96 is formed from a sealing material whose main material is EPDM rubber foam, for example. The watertight member 96 that forms the outer visible surface 90 of the second waterproof block 9 forms a sliding surface similar to the watertight member 87 that forms the outer inclined visible surface 81 of the first waterproof block 8, and is therefore formed from a material with excellent slidability.

[0047] [D-1-3] How to fill two waterproof blocks 12, a method for filling the first waterproof block 8 and the second waterproof block 9 will be described. The first waterproof block 8 is inserted into the space S with its inner visible surface (watertight member 86) in close contact with the upper portion of the side surface 1' of the rail 1 and its lower surface (watertight member 88) in close contact with the first portion 340 of the bottom surface 34. The upper surface 83 of the first waterproof block 8 is at approximately the same height as the upper surface 100 of the rail 1.

[0048] When the first waterproof block 8 is inserted into the space S, the outer inclined prospective surface 81 (watertight member 87) of the first waterproof block 8 is inclined downward so as to move away from the side surface 1' of the rail 1, and a space S1 into which the second waterproof block 9 is inserted is formed between the outer inclined prospective surface 81 and the prospective surface 33 of the wall body 3.

[0049] The extension portion 880 of the watertight member 88 that forms the lower surface 82 of the first waterproof block 8 is placed on the second portion 341 of the bottom surface 34, and the extension portion 880 forms the bottom surface of the space S1. The first waterproof block 8 is positioned by attaching it to the space S so that the protruding piece 840 of the first waterproof block 8 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 850 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34.

[0050] The second waterproof block 9 is inserted into the space S1. When inserting the second waterproof block 9 into the space S1, the second waterproof block 9 is pushed downward into the space S1 while the inner inclined prospective surface 91 of the second waterproof block 9 is brought into sliding contact with the outer inclined prospective surface 81 (watertight member 87) of the first waterproof block 8 and the outer prospective surface 90 (watertight member 96) of the second waterproof block 9 is brought into sliding contact with the prospective surface 33 of the wall body 3 until the lower surface 92 comes into close contact with the bottom surface of the space S1 (the extension part 880 placed on the second part 341 of the bottom surface 34).

[0051] The second waterproof block 9 is positioned by mounting it in the space S1 so that the protruding piece 940 of the second waterproof block 9 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 950 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34.

[0052] When the second waterproof block 9 is pushed into the space S1, the inner inclined prospective surface 91 slides against the outer inclined prospective surface (watertight member 87) of the first waterproof block 8, and at this time, part of the force pushing the second waterproof block 9 downward acts horizontally via the sliding inclined surfaces (the watertight member 87 forming the outer inclined prospective surface, and the inner inclined prospective surface 91). Specifically, part of the force when pushing the second waterproof block 9 acts in a direction that brings the inner prospective surface (watertight member 86) of the first waterproof block 8 into close contact with the upper portion of one side surface 1' of the rail 1, and in a direction that brings the outer prospective surface (watertight member 96) of the second waterproof block 9 into close contact with the prospective surface 33 of the wall body 3.

[0053] When the waterproof block assembly 5 of the first embodiment is filled into the space S, the inner visible surface (watertight member 86) of the first waterproof block 8 is in close contact with the upper portion of the side surface 1' of the rail 1, the outer visible surface (watertight member 96) of the second waterproof block 9 is in close contact with the visible surface 33 of the wall body 3, the underside (watertight member 88) of the first waterproof block 8 is in close contact with the first part 340 of the bottom surface 34, the extension portion 880 of the watertight member 88 is in close contact with the second part 341 of the bottom surface 34, the underside 92 of the second waterproof block 9 is in close contact with the extension portion 880, and the upper surface 93 of the first waterproof block 8 and the upper surface 93 of the second waterproof block 9 are at approximately the same height as the upper surface 100 of the head of the rail 1 (see Figures 12A, 13 and 14).

[0054] As shown in Figure 14, the protruding piece 840 of the first waterproof block 8 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 850 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34. The protruding piece 940 of the second waterproof block 9 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 950 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34. The protruding pieces 840 and 940 abut or closely face the inner visible surface 31 of the wall body 3, thereby preventing the waterproof block assembly 5 from shifting or coming off the space S against the water pressure acting from outside the bank. When the water pressure acts in only one direction, it is sufficient to provide the protruding pieces (for example, the protruding pieces 840 and 940) only on the side opposite to the direction in which the water pressure acts.

[0055] [D-2] Second Example A second embodiment of the waterproof block assembly 5 will be described with reference to Figures 15 to 25. In the second embodiment, the waterproof block assembly 5 is made up of a first waterproof block 8, a second waterproof block 9, and a third waterproof block 15. One side of the waterproof block assembly 5 is formed from the side (inner prospective surface 80) of the first waterproof block 8, and the other side is formed from the side (outer prospective surface 90) of the second waterproof block 9, the underside is formed from the underside 82 of the first waterproof block 8 and the underside 92 of the second waterproof block 9 (the underside 82 occupies the majority of the underside of the waterproof block assembly 5, and the underside 92 may be linear), and the upper side is formed from the upper surface 83 of the first waterproof block 8, the upper surface 93 of the second waterproof block 9, and the upper surface 152 of the third waterproof block 15 (the upper surface 83 may be linear).

[0056] One side, the other side, and the bottom surface of the waterproof block assembly 5 are formed from watertight members 86, 88, 96 on three sides, preventing water from seeping in in the forward direction through the contact surface between the waterproof block assembly 5 and the space S. In the second embodiment, the surface made up of the watertight members 86, 88, 96 is formed on the forward portion of the waterproof block assembly 5 (the outer portion closer to the outside of the bank in the waterproof structure). Note that the surface made up of the watertight members 86, 88, 96 may be formed over substantially the entire forward portion of the waterproof block assembly 5.

[0057] The contact surface between the first waterproof block 8 and the third waterproof block 15 is formed by the close contact between the first inclined surface (81) portion of the first waterproof block 8 (watertight member 87) and the rail-side inclined surface (150) of the third waterproof block 15, and the contact surface between the remaining portion (81B) of the first inclined surface of the first waterproof block 8 and the second inclined surface portion (91) of the second waterproof block 9 is located on the extension of this contact surface (inward in the projection direction). Note that as the projection dimensions of the third waterproof block 15 increase, the projection dimensions of the watertight member 87 also increase.

[0058] The contact surface between the second waterproof block 9 and the third waterproof block 15 is formed by the tight contact between the bottom surface 970 (watertight member 98) of the recessed portion 97 of the second waterproof block 9 and the inclined surface on the body side of the third waterproof block 15. In this way, water is prevented from seeping in in the projected direction through the contact surfaces of the first waterproof block 8, the second waterproof block 9, and the third waterproof block 15. Furthermore, as the projected dimensions of the third waterproof block 15 increase, the projected dimensions of the bottom surface of the recessed portion 97 also increase, and the projected dimensions of the watertight member 98 also increase.

[0059] [D-2-1] First waterproof block The first waterproof block 8 comprises a block body 8' and watertight members 86, 87, and 88 attached to predetermined portions of the surface of the block body 8'. As shown in FIG. 15, the block body 8' has an inner projected surface 80 shaped to fit over the upper portion of the side surface 1' of the rail 1, outer inclined projected surfaces (first outer inclined projected surface 81A and second outer inclined projected surface 81B) facing the inner projected surface 80 and extending downward away from the inner projected surface 80, a horizontal underside (outer projected surface 82A and inner projected surface 82B), a horizontal upper surface 83, a vertical outer projected surface 84, and a vertical inner projected portion 85. The projected dimensions of the first waterproof block 8 (block body 8') are greater than the projected dimensions of the bottom surface 34 of the space S, and downwardly projecting protrusions 840 and 850 are formed on both projected ends of the underside 82.

[0060] 15, the outer inclined prospective surface of the block body 8' is concave in the prospective direction (outer portion) and is made up of a second outer inclined prospective surface 81B and a first outer inclined prospective surface 81A that is recessed inward relative to the second outer inclined prospective surface 81B. The underside of the block body 8' is concave in the prospective direction (outer portion) and is made up of an inclined prospective inner lower surface 82B and an inclined prospective outer lower surface 82A that is recessed upward relative to the inclined prospective inner lower surface 82B. The first outer inclined prospective surface 81A and the inclined prospective outer lower surface 82A are formed in the same region in the prospective direction of the block body 8'.

[0061] Watertight members 86, 87, 88 are provided on the inner visible surface 80 of the block main body 8', the first outer inclined visible surface 81A, and the outer lower surface 82A in the visible direction, respectively. In the illustrated embodiment, the width dimensions (dimension in the visible direction) of the watertight members 86, 87, 88 are smaller than the visible dimension of the block main body 8'. In other words, the inner visible surface 80, the outer inclined visible surface 81, and the lower surface 82 of the first waterproof block 8 are formed from the watertight members 86, 87, 88, respectively. More specifically, as shown in Figure 16, the inner prospective surface of the first waterproof block 8 consists of the inner prospective surface 80 of the block main body 8' and a watertight member 86 provided on the outer portion of the inner prospective surface 80 in the prospective direction, the outer inclined prospective surface 81 of the first waterproof block 8 consists of a watertight member 87 provided on the first outer inclined prospective surface 81A of the block main body 8' and a second outer inclined prospective surface 81B of the block main body 8', and the underside of the first waterproof block 8 consists of a watertight member 88 provided on the outer underside 82A of the block main body 8' in the prospective direction and the inner underside 82B of the block main body 8' in the prospective direction.

[0062] On the surface of the first waterproof block 8, the watertight members 86, 87, 88 are formed in areas (outer areas) that coincide with the projection direction, and the watertight members 86, 87, 88 are provided continuously on three sides of the surface of the first waterproof block 8 (the inner projection surface 80 portion, the outer inclined projection surface 81 portion, and the underside 82 portion) (see FIG. 16). The watertight member 88 that forms the underside 82 portion of the first waterproof block 8 has an extension portion 880 that extends beyond the underside 82 to the outside (in the direction away from the inner projection surface 80) in the projection direction. The upper surface 83, outer projection surface 84, and inner projection portion 85 of the block main body 8' are the upper surface 83, outer projection surface 84, and inner projection portion 85 of the first waterproof block 8.

[0063] The inner prospective surface 80 (watertight member 86) of the first waterproof block 8 has a shape corresponding to the upper portion of the side surface 1' of the rail 1, i.e., the side surface of the head 10, the side surface of the upper neck 13, and the side surface of the upper end portion of the web 12, and is adapted to fit closely to these portions. The underside 82 of the first waterproof block 8 (the watertight member 88 provided on the prospective outer underside 82A and the prospective inner underside 82B) is adapted to fit closely to the first portion 340 of the bottom surface 34 of the space S, at least at the watertight member 88, and the extension portion 880 of the watertight member 88 is adapted to rest on the prospective portion of the second portion 341 of the bottom surface 34. As will be described later, the underside 92 of the second waterproof block 9 fits closely to the extension portion 880, so that the extension portion 880 fits closely to the second portion 341 of the bottom surface 34.

[0064] When the first waterproof block 8 is inserted into the space S, the outer inclined prospective surface 81 of the first waterproof block 8 (the watertight member 87 provided on the first outer inclined prospective surface 81A and the second outer inclined prospective surface 81B) is inclined downward so as to move away from the rail 1, and a space S1 for inserting the second waterproof block 9 is formed between the outer inclined prospective surface 81 (the watertight member 87 provided on the first outer inclined prospective surface 81A and the second outer inclined prospective surface 81B) and the prospective surface 33 of the wall body 3 (see the second diagram from the top in Figure 20).

[0065] When the first waterproof block 8 is inserted into the space S and the lower surface 82 (watertight member 88 on the outer lower surface 82A in the prospective direction, and the inner lower surface 82B in the prospective direction) abuts against the first part 340 of the bottom surface 34, the outer protruding piece 840 in the prospective direction abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the inner protruding piece 850 in the prospective direction abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34.

[0066] The block body 8' is formed from a harder material than the watertight members 86, 87, and 88. In this embodiment, the block body 8' is formed from ABS resin, but the material is not limited as long as it has a predetermined hardness, and other resins or hard rubber materials may be used. The watertight members 86, 87, and 88 are formed from a sealing material whose main component is, for example, EPDM rubber foam. The watertight member 87, which forms part of the outer inclined prospective surface 81 of the first waterproof block 8, forms a sliding surface and is formed from a material with superior sliding properties compared to the watertight members 86 and 88, which form part of the inner prospective surface 80 and part of the underside 82 of the first waterproof block 8.

[0067] [D-2-2] Second waterproof block The second waterproof block 9 comprises a block body 9′ and watertight members 96, 98 attached to predetermined portions of the surface of the block body 9′. As shown in FIG. 17 , the block body 9′ has an outer prospective surface 90 (vertical in the illustrated embodiment) shaped to fit the prospective surface 33 of the wall 3, an inner inclined prospective surface 91 facing the outer prospective surface 90 and extending downward toward the outer prospective surface 90, a horizontal undersurface 92 (outer prospective undersurface 92A and inner prospective undersurface 92B), a horizontal upper surface 93, a vertical outer prospective surface 94, and a vertical inner prospective portion 95. The prospective dimensions of the second waterproof block 9 (block body 9′) are larger than the prospective dimensions of the bottom surface 34 of the space S, and downwardly protruding pieces 940, 950 are formed on both ends of the undersurface 92 in the prospective direction.

[0068] When the second waterproof block 9 is inserted into the space S1 and the outer lower surface 92A in the prospective direction abuts the extension portion 880 on the second part 341 of the bottom surface 34, the outer protruding piece 940 in the prospective direction abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the inner protruding piece 950 in the prospective direction abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34.

[0069] A recessed portion 97 is formed by cutting out the top surface 93 and the inner inclined prospective surface 91 at an outer portion in the prospective direction of the block main body 9'. The recessed portion 97 is composed of an inclined bottom surface 970, a first side surface 971 closer to the outer prospective surface 94, and a second side surface 972 further from the outer prospective surface 94. The bottom surface 970 faces the outer prospective surface 90 and is an inclined prospective surface that extends downward so as to be away from the outer prospective surface 90. A watertight member 98 is provided on the bottom surface (inclined prospective surface) 970 of the recessed portion 97 of the block main body 9'. In other words, the bottom surface (inclined prospective surface) 970 of the recessed portion 97 of the second waterproof block 9 is formed from the watertight member 98.

[0070] 18, the outer visible surface 90 of the second waterproof block 9 comprises the outer visible surface 90 of the block main body 9' and a watertight member 96 provided on the portion of the outer visible surface 90 in the visible direction (outer portion), and the inner inclined visible surface 91, bottom surface 92 (outer bottom surface 92A in the visible direction, inner bottom surface 92B in the visible direction), top surface 93, outer visible surface 94, and inner visible portion 95 of the block main body 9' directly form the inner inclined visible surface 91, bottom surface 92, top surface 93, outer visible surface 94, and inner visible portion 95 of the second waterproof block 9. The recessed portion of the second waterproof block 9 comprises a watertight member 98 provided on the bottom surface 970 of the recessed portion 97 of the block main body 9', a first side surface 971, and a second side surface 972.

[0071] The block body 9' is formed from a harder material than the watertight members 96, 98. In this embodiment, the block body 9' is formed from ABS resin, but the material is not limited as long as it has a predetermined hardness, and other resins or hard rubber materials may be used. The watertight members 96, 98 are formed from a sealing material whose main component is, for example, EPDM rubber foam. The watertight member 96 that forms the outer prospective surface 90 of the second waterproof block 9 and the watertight member 98 that forms the bottom surface (inclined prospective surface) 970 of the recessed portion 97 of the second waterproof block 9 form sliding surfaces similar to the watertight member 87 that forms the outer inclined prospective surface 81 of the first waterproof block 8, and are formed from a material with excellent sliding properties.

[0072] When the second waterproof block 9 is inserted into the space S1, a space is formed by the outer inclined projected surface 81 of the first waterproof block 8 (watertight member 87) and the bottom surface 970 and opposing side surfaces 971, 972 of the recessed portion 97 of the second waterproof block 9, and this space becomes the space S2 into which the third waterproof block 15 is inserted (see the third diagram from the top in Figure 20).

[0073] [D-2-3] Third waterproof block 19, the third waterproof block 15 has a wedge shape made up of an inner inclined prospective surface 150, an outer inclined prospective surface 151, a horizontal upper surface 152, and a pair of vertical prospective surfaces 153, 154. In the illustrated embodiment, the third waterproof block 15 has an isosceles triangular shape when viewed from the front.

[0074] [D-2-4] Three waterproof block filling methods 20 and 23 to 25, a method for filling the first waterproof block 8, the second waterproof block 9, and the third waterproof block 15 will be described. The first waterproof block 8 is inserted into the space S so that the inner visible surface 80 (watertight member 86) is in close contact with the upper portion of the side surface 1' of the rail 1 and the lower surface 82 (watertight member 88) is in close contact with the first portion 340 of the bottom surface 34. The upper surface 83 of the first waterproof block 8 is at approximately the same height as the upper surface 100 of the rail 1.

[0075] When the first waterproof block 8 is inserted into the space S, the outer inclined prospective surface 81 of the first waterproof block 8 (the watertight member 87 provided on the first outer inclined prospective surface 81A and the second outer inclined prospective surface 81B) is inclined downward so as to move away from the rail 1, and a space S1 into which the second waterproof block 9 is inserted is formed between the outer inclined prospective surface 81 and the prospective surface 33 of the wall body 3.

[0076] The extension portion 880 of the watertight member 88 forming the underside 82 of the first waterproof block 8 is placed on the second portion 341 of the bottom surface 34, and the extension portion 880 forms part of the second portion 341 of the bottom surface 34 of the space S1. The first waterproof block 8 is positioned by attaching it to the space S so that the protruding piece 840 of the first waterproof block 8 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 850 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34.

[0077] The second waterproof block 9 is inserted into the space S1. When inserting the second waterproof block 9 into the space S1, the second waterproof block 9 is pushed downward into the space S1 while the inner inclined prospective surface 91 of the second waterproof block 9 is brought into sliding contact with the outer inclined prospective surface 81 of the first waterproof block 8 and the outer prospective surface 90 (watertight member 96) of the second waterproof block 9 is brought into sliding contact with the prospective surface 33 of the wall body 3, until the prospective outer underside 92A comes into close contact with the second portion 341 (including the extension portion 880 placed on the second portion 341) of the bottom surface 34 of the space S1.

[0078] The second waterproof block 9 is positioned by mounting it in the space S1 so that the protruding piece 940 of the second waterproof block 9 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 950 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34.

[0079] When the second waterproof block 9 is pushed into the space S1, the inner inclined projected surface 91 slides against the outer inclined projected surface (second outer inclined projected surface 81B) of the first waterproof block 8, and at this time, part of the force pushing the second waterproof block 9 downward acts horizontally via the sliding inclined surfaces (second outer inclined projected surface 81B, inner inclined projected surface 91). Specifically, part of the force when pushing the second waterproof block 9 acts in a direction that brings the inner projected surface (watertight member 86) of the first waterproof block 8 into close contact with an upper portion of one side surface 1' of the rail 1, and in a direction that brings the outer projected surface (watertight member 96) of the second waterproof block 9 into close contact with the projected surface 33 of the wall body 3.

[0080] When the second waterproof block 9 is inserted into the space S1, a space is formed by the first outer inclined prospective surface 81A (watertight member 87) of the outer inclined prospective surface 81 of the first waterproof block 8, the bottom surface 970 (watertight member 98) of the recessed portion 97 of the second waterproof block 9, and the opposing side surfaces 971, 972, and this space becomes the space S2 into which the third waterproof block 15 is inserted.

[0081] The third waterproof block 15 is inserted or fitted into the space S2. When the third waterproof block 15 is inserted into the space S2, the third waterproof block 15 is pushed downward while the inner inclined prospective surface 150 of the third waterproof block 15 slides against the first outer inclined prospective surface 81A (watertight member 87) of the outer inclined prospective surface 81 of the first waterproof block 8, and the outer inclined prospective surface 151 slides against the inclined prospective surface (watertight member 98) formed by the bottom surface 970 of the recessed portion 97 of the second waterproof block 9.

[0082] When the third waterproof block 15 is pushed into the space S2, the inner inclined projected surface 150 slides against the first outer inclined projected surface 81A (watertight member 87) of the outer inclined projected surface 81 of the first waterproof block 8, and at this time, part of the force pushing the third waterproof block 15 downward acts horizontally through the sliding surfaces (watertight member 87 of the first outer inclined projected surface 81A, inner inclined projected surface 150), and part of the force when pushing the third waterproof block 15 acts in a direction that brings the inner projected surface (watertight member 86) of the first waterproof block 8 into close contact with the upper portion of one side surface 1' of the rail 1.

[0083] When the third waterproof block 15 is pushed into the space S2, the outer inclined projected surface 151 slides against the inclined projected surface (watertight member 98) consisting of the bottom surface 970 of the concave portion 97 of the second waterproof block 9. At this time, part of the force pushing the third waterproof block 15 downward acts horizontally through the sliding surface (watertight member 98 provided on the bottom surface 970, outer inclined projected surface 151), and part of the force when pushing the third waterproof block 15 acts in a direction that causes the outer projected surface (watertight member 96) of the second waterproof block 9 to adhere to the projected surface 33 of the wall body 3.

[0084] As shown in Figures 20A to 22, when the waterproof block assembly 5 of the second embodiment is filled into the space S, the inner prospective surface (watertight member 86) of the first waterproof block 8 is in close contact with the upper portion of the side surface 1' of the rail 1, the outer prospective surface (watertight member 96) of the second waterproof block 9 is in close contact with the prospective surface 33 of the wall body 3, the underside (watertight member 88) of the first waterproof block 8 is in close contact with the first part 340 of the bottom surface 34, the extension portion 880 of the watertight member 88 is in close contact with the second part 341 of the bottom surface 34, the outer prospective underside 92A of the second waterproof block 9 is in close contact with the extension portion 880, and the upper surface 83 of the first waterproof block 8, the upper surface 93 of the second waterproof block 9 and the upper surface 152 of the third waterproof block 15 are at approximately the same height as the upper surface of the head of the rail 1.

[0085] One side, the other side, and the bottom surface of the waterproof block assembly 5 are formed from watertight members 86, 88, 96 on three sides, preventing water from seeping in from the front direction through the contact surface between the waterproof block assembly 5 and the space S. In the second embodiment, the surface made up of the watertight members 86, 88, 96 is formed on the front side portion of the waterproof block assembly 5 (the portion closer to the outside in the inward and outward directions across the waterproof structure).

[0086] The contact surface between the first waterproof block 8 and the third waterproof block 15 is formed by the close contact between the first inclined surface portion of the first waterproof block 8 (watertight member 87 provided on the second outer inclined prospective surface 81) and the rail-side inclined surface (inner inclined prospective surface 150) of the third waterproof block 15, and the contact surface between the first inclined surface portion of the first waterproof block 8 and the second inclined surface portion of the second waterproof block 9 is located on the extension of this contact surface (inward in the prospective direction).

[0087] The contact surface between the second waterproof block 9 and the third waterproof block 15 is formed by the tight contact between the bottom surface 970 (watertight member 98) of the recessed portion 97 of the second waterproof block 9 and the body-side inclined surface (outer inclined prospective surface 151) of the third waterproof block 15. In this way, water is prevented from seeping in from the prospective direction through the contact surfaces of the first waterproof block 8, second waterproof block 9, and third waterproof block 15.

[0088] As shown in Figure 22, the protruding piece 840 of the first waterproof block 8 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 850 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34. The protruding piece 940 of the second waterproof block 9 abuts or closely faces the outer visible surface 30 of the wall body 3 located below the bottom surface 34, and the protruding piece 950 abuts or closely faces the inner visible surface 31 of the wall body 3 located below the bottom surface 34. The protruding pieces 840 and 940 abut or closely face the inner visible surface 31 of the wall body 3, thereby preventing the waterproof block assembly 5 from shifting or coming off the space S against the water pressure acting from outside the bank. When the water pressure acts in only one direction, it is sufficient to provide the protruding pieces (for example, the protruding pieces 840 and 940) only on the side opposite to the direction in which the water pressure acts.

[0089] [E] Support A support column 6 is removably installed on the upper surface of the wide portion 36 of the wall 3. A support column 6A having a U-shape in cross section is installed on the upper surface of the wide portion 35 of the left wall 3 with its bottom wall abutting the side wall 4. A support column 6A having a U-shape in cross section is installed on the upper surface of the wide portion 35 of the right wall 3 with its bottom wall abutting the side wall 4. In one embodiment, the side supports 6A are removably attached, but they may also be permanently installed depending on the site. Each support column 6A forms a guide groove 60 (see Figure 5).

[0090] A support pillar 6 having an H-shape in cross section is erected on the upper surface of the wide portion 36 of the central wall 3, and the support pillar 6 is detachably attached by fixing its lower surface to the upper surface of the wide portion 36 with a bolt 61. The support pillar 6 having an H-shape in cross section forms a pair of guide grooves 60 (see FIG. 6).

[0091] The guide groove 60 of the support 6A erected on the wide portion 35 of the left wall 3 and one of the guide grooves 60 of the support 6 erected on the wide portion 36 of the central support form a pair of opposing guide grooves 60, which are designed to receive the widthwise end of one of the waterproof panels 7. The guide groove 60 of the support 6A erected on the wide portion 35 of the right wall 3 and the other guide groove 60 of the support 6 erected on the wide portion 36 of the central support form a pair of opposing guide grooves 60, which are designed to receive the widthwise end of the other waterproof panel 7.

[0092] The installation of the pillars 6 and 6A will now be described. The pillar 6A is erected on the upper surface of the wide portion 35 of the left wall 3. The pillar 6A is detachably attached by placing its lower end on the upper surface of the wide portion 35 and fastening the bottom wall of the guide groove 60 to the side wall 4 with bolts (not shown). The pillar 6A is erected on the upper surface of the wide portion 35 of the right wall 3. The pillar 6A is detachably attached by placing its lower end on the upper surface of the wide portion 35 and fastening the bottom wall of the guide groove 60 to the side wall 4 with bolts (not shown). The pillar 6 is erected on the upper surface of the wide portion 36 of the center wall 3. The pillar 6 is detachably attached by fastening its lower surface to the upper surface of the wide portion 36 with bolts 61.

[0093] [F] Waterproof panel The waterproof panel 7 has a first visible surface 70 that is positioned on the outside when installed, a second visible surface 71 that is positioned on the inside when installed, an upper surface 72, a lower surface 73, and visible surfaces 74 at both widthwise ends, a lower watertight member 75 is provided across the entire width on the lower surface 73, and left and right side watertight members 76 are provided at both widthwise ends of the second visible surface 71 across the entire height, the lower ends of the left and right side watertight members 76 and the lower watertight member 75 are tightly connected, and the lower watertight member 75 and the left and right side watertight members 76 are provided continuously on three sides. The lower watertight member 75 and the side watertight members 76 are formed from a sealing material whose main material is, for example, EPDM rubber foam.

[0094] Left and right operating parts 77 are provided at both widthwise ends of the first visible surface 70 of the waterproof panel 7. By operating the operating parts 77 while both widthwise ends of the waterproof panel 7 are received in the guide grooves 60 of the support 6A, the waterproof panel 7 is pressed downward and inward. Such waterproof panels are well known. Although three waterproof panels 7 are stacked in Figure 1, the number of waterproof panels 7 used in the waterproof structure is appropriately selected depending on the expected water level.

[0095] The installation of the waterproof panel 7 will now be described. The guide groove 60 of the support 6A erected on the wide portion 35 of the left wall 3 and one of the guide grooves 60 of the support 6 erected on the wide portion 36 of the central support form a pair of opposing guide grooves 60, while the guide groove 60 of the support 6A erected on the wide portion 35 of the right wall 3 and the other guide groove 60 of the support 6 erected on the wide portion 36 of the central support form a pair of opposing guide grooves 60. With the widthwise ends of the waterproof panel 7 received in each of these pairs of guide grooves, the lower watertight member 75 of the underside 73 of the waterproof panel 7 is placed on the upper surface 100 of the rail 1, the upper surface of the waterproof block assembly 5, and the upper surface 32 of the wall 3.

[0096] In this state, by rotating the operating part 77, the waterproof panel 7 moves diagonally downward inward, so that one widthwise end of the second visible surface 71 of the waterproof panel 7 comes into close contact with the inner surface of the guide groove 60 of the support 6A, the other widthwise end of the second visible surface 71 comes into close contact with the inner surface of one of the guide grooves of the support 6, and the lower watertight member 75 at the lower end of the waterproof panel 7 comes into close contact with the upper surface 100 of the rail 1, the upper surface of the waterproof block assembly 5, and the upper surface 32 of the wall body 3. The lower watertight member 75 on the lower surface of the waterproof panel 7 comes into continuous close contact with the upper surface 100 of the rail 1, the upper surface of the waterproof block assembly 5, and the upper surface 32 of the wall body 3, forming a waterproof line. In the illustrated embodiment, three waterproof panels 7 are attached so as to overlap in the height direction, and the upper surface of the lower waterproof panel 7 and the lower surface of the upper waterproof panel 7 come into close contact with each other via the lower watertight member 75, forming a waterproof line.

[0097] A lower waterproof wall consisting of a waterproof block assembly 5 and a wall body 3 is formed at the same height as the rail 1, and an upper waterproof wall consisting of a waterproof panel 7 and supports 6, 6A is formed directly above the lower waterproof wall, and a waterproof line is formed by the upper surface of the lower waterproof wall and the lower surface of the upper waterproof wall being in close contact with each other via a lower watertight member 75, and a levee with a predetermined height is formed from the upper waterproof wall and the lower waterproof wall. In this embodiment, the first visible surface 70 of the waterproof panel 7 and the outer visible surface 30 of the wall body 3 are approximately aligned, but this is not limited to this.

[0098] In this embodiment, when installing the waterproof panel 7, the lower end of the waterproof panel 7 may be used to press the upper surface of the waterproof block assembly 5, so that the waterproof block assembly 5 is brought into close contact with the surface of the space S. Specifically, A method for installing a waterproof structure by sealing the space formed between the side of the rail and the side of the body with a waterproof block, a first step of filling the space with a plurality of waterproof blocks each having an inclined surface in a tightly packed state with the inclined surfaces abutting against each other to close the space with a waterproof block assembly, thereby forming a lower waterproof wall; a second step of attaching a waterproof panel to the upper surface of the lower waterproof wall, In the second step, by pressing at least one waterproof block downward with the waterproof panel, the at least one waterproof block is pressed downward while the inclined surfaces are in sliding contact with each other, and part of the force pressing the waterproof block downward acts horizontally via the inclined surfaces, so that the side of the waterproof block assembly comes into close contact with the surfaces forming the space. A method for installing a waterproof structure is disclosed.

[0099] In relation to the first embodiment of the waterproof block assembly 5, the waterproof panel 7 may be configured to press the upper surface of the waterproof block assembly 5 (the upper surface 83 of the first waterproof block 8) downward when the waterproof panel 7 is installed. Specifically, in the process of forming the lower waterproof wall, the upper surface 93 of the second waterproof block 9 is positioned slightly higher than the upper surface 83 of the first waterproof block 8 on the upper surface of the lower waterproof wall, and by pressing the upper surface of the lower waterproof wall downward with the waterproof panel 7, the second waterproof block 9 is pressed downward while its inner inclined projected surface 91 slides against the outer inclined projected surface 81 of the first waterproof block 8, and part of the force pressing the second waterproof block 9 downward acts horizontally via the inner inclined projected surface 91 and the outer inclined projected surface 81, bringing the inner projected surface 80 of the first waterproof block 8 into close contact with one side surface 1' of the rail 1 and the outer projected surface 90 of the second waterproof block 9 into close contact with the projected surface 33 of the wall body 3.

[0100] In relation to the second embodiment of the waterproof block assembly 5, when the waterproof panel 7 is installed, the waterproof panel 7 may be configured to press the upper surface of the waterproof block assembly 5 (upper surface 152 of the third waterproof block 15) downward. Specifically, in the process of forming the lower waterproof wall, the third upper surface 152 of the third waterproof block 15 is positioned slightly higher than the upper surface 83 of the first waterproof block 8 and the upper surface 93 of the second waterproof block 9 on the upper surface of the lower waterproof wall, and by pressing the upper surface of the lower waterproof wall downward with the waterproof panel 7, the third waterproof block 15 is configured to press the inner inclined prospective surface 150 against the first outer inclined prospective surface 81A (watertight member 8) of the first waterproof block 8. 7), the outer inclined projecting surface 151 is pushed downward while sliding against the bottom surface 970 of the recessed portion 97 of the second waterproof block 9, and part of the force pressing the third waterproof block 15 downward acts horizontally, causing the inner projecting surface 80 (watertight member 86) of the first waterproof block 8 to adhere to one side surface 1' of the rail 1 and the outer projecting surface 90 (watertight member 96) of the second waterproof block 9 to adhere to the projecting surface 33 of the wall body 3.

[0101] [G] Notes [G-1] Appendix 1 In the above embodiment, a waterproof block assembly consisting of multiple waterproof blocks is disclosed, but the technical concept relating to the lower protrusion formed on each waterproof block can also be applied to a single waterproof block, and this technical concept can be defined as follows. Rails and Left and right bodies that are approximately the same height as the rail and are erected on both sides of the rail; a space formed between a side surface of the rail and a side surface of the body; a waterproof block whose upper surface is approximately the same height as the rail and the body and filled in the space; a lower waterproof wall formed from A waterproof panel attached to the upper surface of the lower waterproof wall; It consists of The bottom surface of the space is formed from the one of the frames and is located at an intermediate height of the rail, The one body has a first visible surface and a second visible surface extending downward from both ends of the bottom surface in the prospective direction, A lower protrusion is formed on the end of the lower surface of the waterproof block in the projection direction, the lower protrusion abutting or closely facing at least the first projection surface. Waterproof construction.

[0102] [G-2] Appendix 2 This specification discloses a filling structure and a filling method for a waterproof block as defined below. A waterproof block filling structure for the space formed between the side of the rail and the side of the body, a first waterproof block having a first side surface and a first inclined surface, the first side surface being in close contact with one side surface of the rail; A second waterproof block having a second side surface and a second inclined surface is filled between the first inclined surface and the side surface of the body, with the second side surface in close contact with the side surface of the body and the second inclined surface in close contact with the first inclined surface. Waterproof block filling structure.

[0103] In one embodiment, the first waterproof block is filled in the space with the first inclined surface inclined downward so as to be away from the rail.

[0104] In one embodiment, the first waterproof block has a first upper surface and a first lower surface, and the first lower surface is in close contact with a first portion of a bottom surface of the space; the second waterproof block has a second upper surface and a second lower surface, the second lower surface being in close contact with a second portion of the bottom surface of the space; The first upper surface of the first waterproof block, the second upper surface of the second waterproof block, the upper surface of the rail, and the upper surface of the body are located at approximately the same height.

[0105] In one embodiment, a contact surface between the first side surface of the first waterproof block and the side surface of the rail, a contact surface between the first lower surface and the first portion of the bottom surface, a contact surface between the second side surface of the second waterproof block and the side surface of the body; A watertight member is at least partially provided on the contact surface between the first inclined surface and the second inclined surface so as to prevent water from entering in the forward direction through the contact surface.

[0106] In one embodiment, the first waterproof block comprises a hard first block body having a first side surface, a first lower surface, and a first inclined surface, and a lower watertight member is provided on the first lower surface of the first block body, the lower watertight member has an extension portion that extends beyond the first lower surface, and the lower watertight member is in close contact with a first portion and a second portion of the bottom surface, The second waterproof block comprises a hard second block body having a second side surface, a second lower surface, and a second inclined surface, and the second lower surface is in close contact with the extension portion of the lower watertight member.

[0107] In one embodiment, the first waterproof block includes a first inner watertight member provided on a first side surface of the first block body and an outer watertight member provided on the first inclined surface, The second waterproof block includes a second outer watertight member provided on a second side surface of the second block body, The first inner watertight member is in close contact with the side surface of the rail, The second outer watertight member is in close contact with the side surface of the body, and the second inclined surface is in close contact with the outer watertight member.

[0108] In one embodiment, a recess is formed in the second waterproof block, When the first waterproof block and the second waterproof block are in close contact with each other, a third waterproof block is fitted between the recessed portion and the first inclined surface of the first waterproof block, The third waterproof block has a rail-side inclined surface, a body-side inclined surface, and a third upper surface, The rail-side inclined surface of the third waterproof block is in close contact with the first inclined surface of the first waterproof block, the body-side inclined surface is in close contact with the bottom surface of the concave portion, and the third upper surface is located at approximately the same height as the first upper surface of the first waterproof block and the second upper surface of the second waterproof block.

[0109] In one embodiment, a contact surface between the first side surface of the first waterproof block and the side surface of the rail, a contact surface between the first lower surface and the first portion of the bottom surface, a contact surface between the second side surface of the second waterproof block and the side surface of the body; a contact surface between the first inclined surface and the second inclined surface; a contact surface between the first inclined surface and the rail-side inclined surface of the third waterproof block; A watertight member is provided at least partially on the contact surface between the bottom surface of the recessed portion and the body-side inclined surface of the third waterproof block to prevent water from seeping in from the forward direction through the contact surface.

[0110] In one embodiment, the first waterproof block comprises a hard first block body having a first side surface, a first lower surface, and a first inclined surface, and a lower watertight member is provided on the first lower surface of the first block body, the lower watertight member has an extension portion that extends beyond the first lower surface, and the lower watertight member is in close contact with a first portion and a second portion of the bottom surface, The second waterproof block comprises a hard second block body having a second side surface, a second lower surface, and a second inclined surface, and the second lower surface is in close contact with the extension portion of the lower watertight member.

[0111] In one embodiment, the first waterproof block includes a first inner watertight member provided on a first side surface of the first block body and a first outer watertight member provided on the first inclined surface, The second waterproof block includes a second outer watertight member provided on a second side surface of the second block body and a second inner watertight member provided on a bottom surface of the recessed portion, the third waterproof block is a hard block, The first inner watertight member is in close contact with the side surface of the rail, The second outer watertight member is in close contact with the side surface of the body, The rail-side inclined surface of the third waterproof block is in close contact with the first outer watertight member, and the body-side inclined surface is in close contact with the second inner watertight member.

[0112] In one embodiment, the bottom surface of the space is located at an intermediate height of the rail, The body has a first visible surface and a second visible surface extending downward from both ends of the bottom surface in the projection direction, A lower protrusion is formed at an end of the first lower surface of the first waterproof block in the projection direction, the lower protrusion being in contact with or closely facing the first projection surface, A lower protruding piece is formed on the end of the second lower surface of the second waterproof block in the projection direction, the lower protruding piece being in contact with or closely facing at least the first projection surface.

[0113] A method for filling a space formed between a side of a rail and a side of a body with waterproof blocks, a first waterproof block having a first side surface and a first inclined surface is inserted into the space with the first side surface in close contact with one side surface of the rail and the first inclined surface inclined downward so as to be away from the rail; A second waterproof block having a second side surface and a second inclined surface is inserted between the first inclined surface and the side surface of the body, and the second inclined surface is brought into close contact with the first inclined surface and the second side surface is brought into close contact with the side surface of the body, thereby closing off the space and forming a waterproof wall. How to fill waterproof blocks. In one embodiment, a recess is formed in the second waterproof block, With the first waterproof block and the second waterproof block in close contact with each other, a third waterproof block having a rail-side inclined surface and a body-side inclined surface is inserted between the recessed portion and the first inclined surface of the first waterproof block; The rail-side inclined surface of the third waterproof block is brought into close contact with the first inclined surface of the first waterproof block, and the body-side inclined surface is brought into close contact with the bottom surface of the recessed portion, thereby blocking off the space and forming a waterproof wall. [Explanation of symbols]

[0114] 1 Rail 1´ Side 3 Wall body (framework) 30 Outer marking surface 31 Inside facing 32 Top side 33 Prospect (side) 34 bottom 340 First part of the bottom 341 Second part of the base 5 Waterproof block assembly 6 pillars 60 Guide groove 6A strut 7. Waterproof Panel 75 Lower watertight member 76 Lateral watertight member 8. First waterproof block 8´ Block body (1st block body) 80 Inner face of block body (first side) 81 Outer inclined prospective surface of block body (first inclined surface) 82 Bottom surface of block body (first bottom surface) 83 Top surface (1st top surface) 840 Lower protrusion 850 Lower protrusion 86 Watertight member (first side, first inner watertight member) 87 Watertight member (first inclined surface, first outer watertight member) 88 Watertight member (first lower surface, lower watertight member) 880 Extension 9 Second waterproof block 9´ Block body (2nd block body) 90 Outer face of block body (second side) 91 Inner slope prospect (second slope) 92 Lower surface (2nd lower surface) 93 Top surface (second top surface) 940 Lower protrusion 950 Lower protrusion 96 Watertight member (second side, second outer watertight member) 97 Concave part 970 Bottom 971 Side 972 Side 98 Watertight member (second inner watertight member) 15 Third waterproof block 150 Inner inclined prospect surface (rail side inclined surface) 151 Outer sloped prospect surface (body side sloped surface) 152 Top surface (Third top surface) S space

Claims

1. Rails and Left and right bodies that are approximately the same height as the rail and are erected on both sides of the rail; a space formed between a side surface of the rail and a side surface of the body; a waterproof block assembly formed by closely filling a plurality of waterproof blocks into the space, the upper surface of which is at approximately the same height as the rail and the body; a lower waterproof wall formed from A waterproof panel attached to the upper surface of the lower waterproof wall; Consists of: Waterproof construction.

2. a pair of support columns provided on the left and right bodies at a distance in the viewing direction and having opposing guide grooves; The waterproof panel is attached in a state where it is in close contact with the upper surface of the lower waterproof wall via a watertight member provided at the lower end, and is in close contact with the guide groove via watertight members provided at both widthwise end portions and / or within the guide groove. The waterproof structure according to claim 1.

3. the waterproof block assembly includes a first waterproof block and a second waterproof block, and is formed by combining the first waterproof block and the second waterproof block so that their inclined surfaces are in close contact with each other; a first side surface of the first block and a second side surface of the second block each form a side surface of the waterproof block assembly, one side surface being in close contact with a side surface of the rail and the other side surface being in close contact with a side surface of the body; The lower surfaces of the first block and the second block form the lower surface of the waterproof block assembly and are in close contact with the bottom surface of the space. The waterproof structure according to claim 1.

4. The first waterproof block has a first side surface that is in close contact with a side surface of the rail, a first inclined surface that is inclined downward so as to be away from the rail, a first upper surface, and a first lower surface; The second waterproof block includes a second side surface that is in close contact with the side surface of the body, a second inclined surface that is inclined downward so as to approach the side surface of the body, a second upper surface, and a second lower surface; the first inclined surface of the first waterproof block and the second inclined surface of the second waterproof block are in close contact with each other, an upper surface of a waterproof block assembly is formed by the first upper surface of the first waterproof block and the second upper surface of the second waterproof block; a lower surface of a waterproof block assembly is formed from the first lower surface of the first waterproof block and the second lower surface of the second waterproof block, and the lower surface of the waterproof block assembly is in close contact with the bottom surface of the space; The waterproof structure according to claim 3.

5. the waterproof block assembly includes a third waterproof block; The third waterproof block has a rail-side inclined surface, a body-side inclined surface, and a third upper surface, The second waterproof block has a recessed portion formed therein, When the first waterproof block and the second waterproof block are in close contact with each other, the third waterproof block is fitted between the recessed portion and the first inclined surface of the first waterproof block, The rail-side inclined surface of the third waterproof block is in close contact with the first inclined surface of the first waterproof block, the body-side inclined surface is in close contact with the bottom surface of the recessed portion, and the third upper surface forms a part of the upper surface of the waterproof block assembly. The waterproof structure according to claim 4.

6. The space is formed laterally on one side of the rail, and the bottom surface of the space is located at an intermediate height of the rail, The other side of the rail is closed by the body. The waterproof structure according to any one of claims 1 to 5.

7. The body includes a first visible surface and a second visible surface extending downward from both ends of the bottom surface in a prospective direction, a lower protrusion formed on an end of the lower surface of the waterproof block assembly in the projection direction, the lower protrusion abutting or closely facing at least the first projection surface; The waterproof structure according to claim 6.

8. The contact surfaces between the waterproof block assembly and the surface forming the space, and the contact surfaces between the waterproof blocks forming the waterproof block assembly, are at least partially provided with watertight members to prevent water from seeping in from the front direction through the contact surfaces. The waterproof structure according to any one of claims 1 to 5.

9. Left and right bodies are erected on both sides of the rail so as to form a space on at least one side of the rail, a first waterproof block having a first side surface and a first inclined surface is inserted into the space with the first side surface in close contact with one side surface of the rail and the first inclined surface inclined downward so as to be away from the rail; a second waterproof block having a second side surface and a second inclined surface is inserted between the first inclined surface and the side surface of the body, and the second inclined surface is brought into close contact with the first inclined surface and the second side surface is brought into close contact with the side surface of the body, thereby closing off the space and forming a lower waterproof wall; A waterproof panel is attached to the upper surface of the lower waterproof wall. How to install waterproof structures.

10. the first waterproof block has a first upper surface and a first lower surface, and when the first waterproof block is inserted into the space, the first lower surface comes into close contact with a first portion of a bottom surface of the space; the second waterproof block has a second upper surface and a second lower surface, and when the second waterproof block is inserted between the first inclined surface and the side surface of the body, the second lower surface comes into close contact with a second portion of the bottom surface of the space; The upper surface of the lower waterproof wall is formed from the upper surface of the rail, the upper surfaces of the left and right bodies, the first upper surface, and the second upper surface, and a waterproof panel is attached to the upper surface of the lower waterproof wall. A method for installing the waterproof structure according to claim 9.

11. The second waterproof block has a recessed portion formed therein, A third waterproof block having a rail-side inclined surface, a body-side inclined surface, and a third upper surface is inserted between the concave portion and the first inclined surface of the first waterproof block when the first waterproof block and the second waterproof block are in close contact with each other, so that the rail-side inclined surface is in close contact with the first inclined surface of the first waterproof block and the body-side inclined surface is in close contact with the bottom surface of the concave portion, and the third upper surface forms part of the upper surface of the waterproof block assembly. A method for installing a waterproof structure according to claim 10.

12. A pair of support columns are erected on the left and right frames at a distance in the front direction, The waterproof panel is attached in a state where it is in close contact with the upper surface of the lower waterproof wall via a watertight member provided at the lower end, and is in close contact with the guide groove via watertight members provided at both widthwise end portions and / or within the guide groove. A method for installing a waterproof structure according to any one of claims 9 to 11.

13. A method for installing a waterproof structure by sealing the space formed between the side of the rail and the side of the body with a waterproof block, a first step of filling the space with a plurality of waterproof blocks each having an inclined surface in a tightly packed state with the inclined surfaces abutting against each other to close the space with a waterproof block assembly, thereby forming a lower waterproof wall; a second step of attaching a waterproof panel to the upper surface of the lower waterproof wall, In the second step, by pressing at least one waterproof block downward with the waterproof panel, the at least one waterproof block is pressed downward while the inclined surfaces are in sliding contact with each other, and part of the force pressing the waterproof block downward acts horizontally via the inclined surfaces, so that the side of the waterproof block assembly comes into close contact with the surfaces forming the space. How to install waterproof structures.

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