Slope protection block foundation construction member and slope protection block foundation

Abstract

To provide construction components of a foundation of slope protection blocks capable of improving transportation efficiency and constructing a foundation of slope protection blocks with various sizes, and to provide a foundation of slope protection blocks.SOLUTION: Construction components 100 of a foundation of slope protection blocks for constructing a foundation 200 of slope protection blocks that becomes a laying start point in laying slope protection blocks B comprise: a front face block 10 having a rectangular trapezoid shape in side view and erected so that a sloped side 11 is positioned at an upper part at a slope N side; a rear face block 20 formed to have the same cross section shape as that of the front face block 10 and erected so that a sloped side 21 is positioned at an upper part at the slope N side at a position with a prescribed interval at the slope N side with respect to the front face block 10; and a holding body 30 holding the front face block 10 and the rear face block 20. A foundation 200 of slope protection blocks is constructed by using the same.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a slope protection block foundation construction member and a slope protection block foundation. [Background technology]

[0002] When laying slope protection blocks to protect a slope, it is necessary to construct a slope protection block foundation at a predetermined position on the slope. There are two types of slope protection block foundation: the so-called cast-in-place concrete type and the precast type. Of these, a configuration disclosed in Patent Document 1 (JP Patent Publication No. 9-189018) is known as a precast type slope protection block foundation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-189018 Summary of the Invention [Problem to be solved by the invention]

[0004] The precast slope protection block foundation disclosed in Patent Document 1 is a so-called pot-shaped precast box, which has the problem of poor transport efficiency from the production factory to the installation site. In addition, since the size of the precast box is fixed, it is necessary to manufacture products of different dimensions depending on the installation site, which is cumbersome. [Means for solving the problem]

[0005] Therefore, the present invention aims to provide slope protection block foundation construction components and a slope protection block foundation that can improve the efficiency of transportation from the production factory to the installation site and can construct slope protection block foundations of various dimensions depending on the installation site.

[0006] That is, the present invention is a slope protection block foundation construction member for constructing a slope protection block foundation that serves as a starting point for laying a slope protection block, the member comprising: a front block having a right-angled trapezoidal shape in side view and erected so that its inclined side is located at the upper part of the slope side; a back block formed in the same cross-sectional shape as the front block and erected at a position spaced a required distance closer to the slope side than the front block so that its inclined side is located at the upper part of the slope side; and a support member for holding the front block and the back block. , a plurality of rod-shaped bodies A holder and a The front block and the rear block are each provided with a plurality of through holes at required intervals that penetrate from the side of the slope, and each of the retaining bodies is inserted into the through holes of the front block and the through holes of the rear block, respectively. This is a slope protection block foundation construction component characterized by the above.

[0007] This allows the slope protection block foundation construction components to be separated into flat plate-shaped front and back blocks and the support, greatly improving the efficiency of transportation from the production factory to the installation site. Also, at the installation site, the dimensions of the slope protection block foundation can be easily changed by changing the support interval between the front and back blocks depending on the installation site, making it possible to build slope protection block foundations of various dimensions even with the same composition of materials. This also allows the retainer to be housed between the front block and the rear block.

[0010] Also, Each rod-shaped The retaining bodies have a front block side retaining body and a rear block side retaining body of the same shape, with a first end formed into an engaging end that engages with the through hole and a second end formed into a fastening end, and a fastening member that fastens the fastening end of the front block side retaining body to the fastening end of the rear block side retaining body, and it is preferable that the fastening end of the front block side retaining body, with the engaging end of the front block side retaining body engaged with the through hole of the front block, and the fastening end of the rear block side retaining body, with the engaging end of the rear block side retaining body engaged with the through hole of the rear block, are connected by the fastening member so that the separation distance between the front block and the rear block can be adjusted.

[0011] This makes it easier to change the retention spacing between the front and rear blocks according to the installation site, thereby expanding the range of changes to the dimensions of the slope protection block foundation.

[0012] Also, a slope protection block foundation which serves as a starting point for laying slope protection blocks includes a front block which has a right-angled trapezoidal shape in side view and is erected so that its inclined side is located at the top of the slope side, and a back block which is formed in the same cross-sectional shape as the front block and is erected at a position spaced a required distance closer to the slope side than the front block so that its inclined side is located at the top of the slope side. a plurality of rod-shaped holders for holding the front block and the rear block, the front block and the rear block each having a plurality of through holes at required intervals penetrating from the slope side, and each of the holders being inserted into the through holes of the front block and the through holes of the rear block, There is also an invention for a slope protection block foundation, characterized in that the space between the front block and the rear block is filled with a filler to integrate them.

[0013] This allows the components that make up the slope protection block foundation to be separated into flat plate-shaped front and back blocks and the support, greatly improving the efficiency of transportation from the production factory to the installation site. Also, at the installation site, the dimensions of the slope protection block foundation can be easily changed by changing the support interval between the front and back blocks depending on the installation site, making it possible to build slope protection block foundations of various dimensions even with the same materials. This also allows the retainer to be housed between the front block and the rear block.

[0016] Also, Each rod-shapedThe retainers have a front block side retainer and a rear block side retainer of the same shape, with a first end formed into an engagement end that engages with the through hole and a second end formed into a fastening end, and a fastening member that fastens the fastening end of the front block side retainer to the fastening end of the rear block side retainer, and it is preferable that the fastening end of the front block side retainer, with the engagement end of the front block side retainer engaged with the through hole of the front block, and the fastening end of the rear block side retainer, with the engagement end of the rear block side retainer engaged with the through hole of the rear block, are connected by the fastening member so that the separation distance between the front block and the rear block can be adjusted.

[0017] This makes it easier to change the retention spacing between the front and rear blocks according to the installation site, thereby expanding the range of changes to the dimensions of the slope protection block foundation.

[0018] It is also preferable that at least the bottom surface side required height range and the top surface side required height range of the filler are made of concrete.

[0019] This can improve the appearance quality of the slope protection block foundation. Effect of the Invention

[0020] According to the configuration of the slope protection block foundation constructing member and slope protection block foundation of the present invention, the slope protection block foundation constructing member can be separated into a flat plate-shaped front block, a back block, and a support body, so that the efficiency of transportation from the production factory to the installation site can be greatly improved. Also, at the installation site, the dimensions of the slope protection block foundation that is finally formed can be easily changed by changing the retention interval between the front block and the back block according to the installation site, and it becomes possible to construct slope protection block foundations of various dimensions even with materials of the same configuration. [Brief description of the drawings]

[0021] [Figure 1] This is an assembled oblique rear view of the slope protection block foundation construction member in this embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II in FIG. [Diagram 3] 1 is a side cross-sectional view showing an example of a manufacturing process for a slope protection block foundation using a slope protection block foundation construction member in this embodiment. FIG. [Figure 4] FIG. 4 is a side cross-sectional view continuing from FIG. [Diagram 5] FIG. 5 is a side cross-sectional view continuing from FIG. 4. [Figure 6] FIG. 6 is a side cross-sectional view continuing from FIG. [Figure 7] FIG. 7 is a side cross-sectional view continuing from FIG. [Figure 8] FIG. 8 is a side cross-sectional view continuing from FIG. 7. [Figure 9] FIG. 9 is a side cross-sectional view continuing from FIG. 8. [Figure 10] FIG. 10 is a side cross-sectional view continuing from FIG. [Figure 11] 1 is an explanatory diagram of the state in which a slope protection block is laid on a slope protection block foundation constructed using slope protection block foundation members. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The specific configuration of the slope protection block foundation construction member 100 of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the slope protection block foundation construction member 100 of this embodiment is formed by assembling a front block 10, a rear block 20, a holder 30, and a side cover 40. Therefore, when transporting from the production factory to the installation site, the volume during transportation can be reduced by separating each of them, and efficient transportation is possible. In addition, the slope protection block foundation construction member 100 of this embodiment is configured to be individually separable, which is advantageous in that the weight of each component is small and each component can be easily handled.

[0023] As shown in Figs. 1 and 2, the front block 10 is a plate-like block body having a so-called right-angled trapezoidal shape in side view formed by cutting off a corner of one part of a rectangle (here, the upper part of the back side (the upper part on the side of the slope N)) over a required range and extending over a required length range in the depth direction of Fig. 2. The right-angled trapezoid here is a concept including not only a right-angled trapezoid but also a pentagon whose contour line is a substantially right-angled trapezoid as shown in Figs. 1 and 2. In addition, the back side in this embodiment refers to the surface facing the slope N side (the side on which the inclined side 11 is formed (the side of the upper base 13 of the right-angled trapezoid)), and the front side refers to the surface opposite to the surface facing the slope N side (the side of the lower base 12 of the right-angled trapezoid). Furthermore, the left side refers to the left side when facing the front side, and the right side refers to the right side when facing the front side.

[0024] The front block 10 is provided with a plurality of through holes 14 (having openings at both ends on the front and back) at required intervals, penetrating in the thickness direction from the side of the slope N. In addition, at a position above the required height from the lower end (installation surface) of the back, a marking groove 13A is provided extending in the depth direction (left-right direction) of the front block 10, which serves as a mark for the pouring height of concrete C when forming a bottom plate 52 in a filling space 50, which will be described later. In addition, a connector attachment portion 17 is provided on each of the right end edge 15 and the left end edge 16 of the inclined surface defined by the inclined side 11 of the front block 10. Such a front block 10 can be manufactured using a quick-release formwork.

[0025] 1 and 2, the rear block 20 is a plate-like block body having a so-called right-angled trapezoidal shape in side view formed by cutting off one corner (the upper part of the rear side (the upper part on the slope N side)) of a rectangle over a required range to form an inclined side 21, and extending over a required length range in the depth direction of Fig. 2. The front, back, left side and right side of the rear block 20 are similar to the front, back, left side and right side of the front block 10.

[0026] The rear block 20 has a plurality of through holes 24 (having openings at both ends on the front and rear) drilled at required intervals through the thickness direction from the side of the slope N. At a position above the required height from the lower end (installation surface) of the rear, a mark groove 23A is provided extending in the depth direction (left and right direction) of the rear block 20, similar to the front block 10. In addition, a connector attachment portion 27 is provided on each of the right edge 25 and the left edge 26 of the inclined surface defined by the inclined side 21 of the rear block 20. As described above, the rear block 20 in this embodiment is formed in the same shape (and the same cross-sectional shape) as the front block 10, so it can be manufactured using a formwork of the same shape, and manufacturing costs can be significantly reduced. The rear block 20 in this embodiment has the mark groove 23A because it is formed in the same shape as the front block 10, but this configuration is not particularly used.

[0027] A holder 30 is inserted into each of the through holes 14 of the front block 10 and the through holes 24 of the rear block 20, and the front block 10 and the rear block 20 are held at a required distance in the front-rear direction. The front block 10 and the rear block 20 are erected so that the inclined edge 11 of the front block 10 and the inclined edge 21 of the rear block 20 are positioned at the top of the rear side. The holder 30 in this embodiment has a front block side holder 30A, a rear block side holder 30B, and a fastening member 30C that fastens them together.

[0028] The front block side retainer 30A has a first end 31A formed at an engagement end that engages with the front surface of the front block 10 at the opening of the through hole 14 of the front block 10, and a second end 32A formed at a fastening end that can be fastened to the fastening member 30C. In this embodiment, the engagement end is formed in a flange-shaped portion that engages with the opening of the through hole 14, and the fastening end can be exemplified by a bolt formed in a threaded portion that screws into a thread formed in the fastening member 30C.

[0029] The rear block side retainer 30B has a first end 31B formed at an engagement end that engages with the rear surface of the rear block 20 at the opening of the through hole 24 of the rear block 20, and a second end 32B formed at a fastening end that can be fastened to the fastening member 30C. In this embodiment, the engagement end is formed as a flange-shaped portion that engages with the opening of the through hole 14, and the fastening end is exemplified by a bolt formed in a threaded portion that screws into a thread formed in the fastening member 30C. In this way, the rear block side retainer 30B can be formed in the same shape as the front block side retainer 30A, thereby reducing manufacturing costs.

[0030] The second end 32A of the front block side retainer 30A and the second end 32B of the rear block side retainer 30B are connected to the end 31C of the fastening member 30C to fasten them together, and the front block 10 and the rear block 20 can be held with a required gap between them. An example of such a fastening member 30C is a so-called L-insert member in which the end 31C made of a female screw is attached to both ends of a rod-shaped body, such as a reinforcing bar of a required length. By adopting such a configuration of the retainer 30, the distance between the front block 10 and the rear block 20 can be maintained at any distance, which is advantageous in that the dimensions can be adjusted according to the situation at the construction site.

[0031] In this way, a side cover 40 can be attached between the front block 10 and the rear block 20 arranged at a required interval in the thickness direction by the retainer 30, as necessary. Specifically, the side cover 40 can be attached to the right side 18 of the front block 10 and the right side 28 of the rear block 20 at both end positions in the arrangement direction of the slope protection block foundation construction member 100, to close the opening. Similarly, the side cover 40 can be attached to the left side 19 of the front block 10 and the left side 29 of the rear block 20. In this embodiment, an elastomer plate material used for expansion joints is used as the side cover 40, and a connector insertion hole 42 for inserting the connector CT is formed at the overlap between the connector mounting part 17 of the front block 10 and the connector mounting part 27 of the rear block 20.

[0032] In this embodiment, the side covering body 40 is attached to the right side surface 18 of the front block 10 and the right side surface 28 of the rear block 20, but depending on the situation at the construction site, the side covering body 40 can also be attached to the left side surface 19 of the front block 10 and the left side surface 29 of the rear block 20. Furthermore, the side covering body 40 can also be attached to each (both sides) of the right side surface 18 of the front block 10 and the right side surface 28 of the rear block 20, and the left side surface 19 of the front block 10 and the left side surface 29 of the rear block 20.

[0033] In this way, the front block 10, the rear block 20, the retainer 30, and the side covering body 40 form the slope protection block foundation construction member 100. In addition, the space surrounded by the front block 10, the rear block 20, and the side covering body 40 forms a filling space 50 for the filling material. The filling space 50 is filled with a filling material such as concrete shells generated on site or ready-mixed concrete to form the slope protection block foundation 200. When an elastomer plate material used for an expansion joint is used as the side covering body 40, it can be disposed in a middle position, not at both ends in the arrangement direction of the slope protection block foundation construction member 100. In this way, the filling space 50 can be cut into small pieces by the side covering body 40 as an expansion joint in the arrangement direction of the slope protection block foundation construction member 100, which is advantageous in that it is possible to prevent the occurrence of cold joints when pouring ready-mixed concrete and to prevent or reduce the adverse effects of thermal expansion.

[0034] Next, an example of a method for constructing a slope protection block foundation 200 using the slope protection block foundation constructing member 100 in this embodiment will be described with reference to the drawings. Although all of the drawings from FIG. 3 onwards are cross-sectional views, hatching for each member is omitted to simplify the drawings. After the worker excavates a predetermined area of ​​the slope N at the slope protection block laying site to a predetermined depth, as shown in FIG. 3, the worker places the front block 10 in a preset position. Next, as shown in FIG. 4, the worker inserts the front block side retainer 30A into the through hole 14 and the washer W aligned with the through hole 14 from the front of the front block 10, and causes the second end 32A to protrude to the rear side of the front block 10, and fastens the protruding second end 32A to the end 31C of the fastening member 30C. The position of the end 31C of the fastening member 30C on the front block 10 side is aligned with the rear position of the front block 10.

[0035] Next, the worker places the rear block 20 at a position at a predetermined distance from the rear of the front block 10, as shown in FIG. 5. Here, the end 31C of the fastening member 30C is located at the front of the rear block 20. If the length of the fastening member 30C is formed to be equal to the distance between the front block 10 and the rear block 20, the distance between the front block 10 and the rear block 20 can be confirmed by checking whether the end 31C of the fastening member 30C on the rear block 20 side is located at the front of the rear block 20. Next, the worker inserts the rear block side retainer 30B into the through hole 24 and the washer W aligned with the through hole 24 from the rear side of the rear block 20, as shown in FIG. 6, and fastens the second end 32B to the end 31C of the fastening member 30C located at the front side of the rear block 20.

[0036] Next, as shown in Fig. 7, the worker uses connectors CT to connect adjacent front blocks 10 in the extension direction of the slope protection block foundation constructing members 100 (a direction perpendicular to the direction in the horizontal plane in which the front block 10 and the rear block 20 are spaced apart). Specifically, the front blocks 10 are connected to each other at the connector mounting parts 17, and the rear blocks 20 are connected to each other at the connector mounting parts 27, via connectors CT. After a predetermined number of slope protection block foundation constructing members 100 have been arranged in the extension direction of the arrangement, the worker arranges side cover bodies 40 at appropriate positions to form a filling space 50 to be filled with the filling material, as shown in Fig. 7.

[0037] Next, as shown in FIG. 8, the worker pours concrete C, which is a part of the filling body, in the range of the required height on the bottom side of the filling space 50. When pouring the concrete C, if the concrete C is poured to a height that hides all of the mark groove 13A, the bottom plate 52 of the filling space 50 can be formed with a specified height dimension. After the concrete C as the bottom plate 52 of the filling space 50 hardens, the worker fills the filling space 50 with on-site generated materials G, such as concrete shells and gravel, generated at the construction site, as part of the filling body, as shown in FIG. 9. Depending on the size of the on-site generated materials G, it is preferable to fill the filling space 50 with the on-site generated materials G while performing rolling compaction. After the on-site generated materials G are filled to the required height position of the filling space 50, the worker pours concrete C for the cover portion 54, which is constructed in the required height range on the top side of the filling space 50 and is used to close the top opening of the filling space 50, as shown in FIG. 10.

[0038] Here, it is preferable that the height position at which the concrete C of the cover portion 54 starts pouring is the height position of the lower end of the connector mounting portion 17. This allows the connector CT to be embedded in the concrete C, and deterioration of the connector CT can be prevented. Next, the worker finishes the upper surface of the concrete C of the cover portion 54 to a flat surface, and when the concrete C has hardened, the construction of the slope protection block foundation 200 is completed. After this, the worker backfills the working space on the back side of the back block 20 as shown in FIG. 11, and lays the slope protection block B along the slope N, starting from the inclined surface 210 (the inclined surface defined by the inclined side 21 of the back block 20) ​​on the back side of the constructed slope protection block foundation 200.

[0040] In addition, the retainer 30 in this embodiment is exemplified as a three-piece structure retainer 30, but is not limited to this form. It can also be a two-piece structure consisting of an insert that is inserted into the through holes 14 and 24 and has a first end (base) formed as an engagement piece and a second end (tip) formed as a male thread, and a fastener that screws into the male thread of the second end. Furthermore, if the through holes 14 and 24 are formed as stepped holes, the end of the retainer 30 can be contained within the thickness of the front block 10 or the rear block 20, and the appearance can be improved.

[0041] In addition, in this embodiment, a configuration is exemplified in which a plurality of slope protection block foundation constructing members 100 are arranged in the left-right direction, and the side cover body 40 is arranged at the end position in the arrangement direction, but this configuration is not limited to this. The number of slope protection block foundation constructing members 100 may be only one. Also, a configuration in which the side cover body 40 is omitted can be adopted. Even in such a configuration, it is possible to fill the space between the front block 10 and the rear block 20 with a filler such as concrete C.

[0042] In the above embodiment, concrete C is poured into the required height range from the bottom (installation surface) of the filling space 50 to construct the bottom plate 52, and then the on-site generated material G is filled in as a filling body, but the construction of the bottom plate 52 by pouring concrete C can be omitted. Also, the filling body can be made entirely of concrete C or on-site generated material G.

[0043] Furthermore, the configuration of the present embodiment described above can be appropriately combined with modified examples described in the specification or other known configurations. [Explanation of symbols]

[0044] 10: Front block 11: Inclined side, 12: Bottom bottom, 13: Top bottom, 13A: Mark groove, 14: Through hole, 15: right edge, 16: left edge, 17: connector attachment part, 18: right side, 19: left side 20: Back block 21: Inclined side, 22: Lower base, 23: Upper base, 23A: Mark groove, 24: Through hole, 25: right edge, 26: left edge, 27: connector attachment part, 28: right side, 29: left side 30: Holding body 30A: front block side retainer, 31A: first end, 32A: second end 30B: rear block side holder, 31B: first end, 32B: second end 30C: Fastening member, 31C: End portion 40: Side cover, 42: Connector insertion hole 50: Filling space 52: Bottom plate, 54: Lid part 100: Slope protection block foundation construction material 200: Slope protection block foundation 210: Slope (laying starting point) B: Slope protection block C: Concrete (filler) CT: Connector G: On-site generated materials N: Slope W: Washer

Claims

1. A slope protection block foundation construction member for constructing a slope protection block foundation that serves as a starting point for laying a slope protection block, A front block having a right-angled trapezoidal shape in side view and erected so that an inclined side is located at the upper part of the slope side; A back block is formed in the same cross-sectional shape as the front block, and is erected at a position on the slope side of the front block at a required distance so that the inclined side is located at an upper part on the slope side; a plurality of rod-shaped holders for holding the front block and the rear block; The front block and the rear block are each provided with a plurality of through holes at required intervals that penetrate from the slope side, A slope protection block foundation construction member, characterized in that each of the retaining bodies is inserted into the through hole of the front block and the through hole of the rear block, respectively.

2. Each of the retaining bodies, which are rod-shaped bodies, has a front block side retaining body and a rear block side retaining body of the same shape, each of which has a first end formed into an engaging end that engages with the through hole and a second end formed into a fastening end, and a fastening member that fastens the fastening end of the front block side retaining body and the fastening end of the rear block side retaining body, A slope protection block foundation construction member as described in claim 1, characterized in that the fastening end of the front block side retainer, whose engaging end is engaged with the through hole of the front block, and the fastening end of the rear block side retainer, whose engaging end is engaged with the through hole of the rear block, are connected by the fastening member so that the distance between the front block and the rear block can be adjusted.

3. A slope protection block foundation that serves as a starting point for laying a slope protection block, A front block having a right-angled trapezoidal shape in side view and erected so that an inclined side is located at the upper part of the slope side; A back block is formed in the same cross-sectional shape as the front block, and is erected at a position on the slope side of the front block at a required distance so that the inclined side is located at an upper part on the slope side; a plurality of rod-shaped holders for holding the front block and the rear block; The front block and the rear block are each provided with a plurality of through holes at required intervals that penetrate from the slope side, Each of the holders is inserted into the through hole of the front block and the through hole of the rear block, A slope protection block foundation characterized in that the front block and the rear block are integrated by filling the space between them with a filler.

4. Each of the retainers, which is a rod-shaped body, has a first end formed into an engagement end that engages with the through hole and a second end formed into a fastening end, the retainers having the same shape as a front block side retainer and a rear block side retainer, and a fastening member that fastens the fastening end of the front block side retainer and the fastening end of the rear block side retainer, A slope protection block foundation as described in claim 3, characterized in that the fastening end of the front block side retainer, whose engaging end is engaged with the through hole of the front block, and the fastening end of the rear block side retainer, whose engaging end is engaged with the through hole of the rear block, are connected by the fastening member so that the distance between the front block and the rear block can be adjusted.

5. 5. A slope protection block foundation according to claim 3, wherein at least the bottom side required height range and the top side required height range of said filler are made of concrete.

Images