Water stop device installation method

Abstract

To accurately install a water stop device regardless of the state of a building body.SOLUTION: In a water stop device installation method in which a water stop device in which a space between left and right support members 10 is closed by a water stop plate 20 is installed so as to cover an opening S3 in a body wall portion S2 rising from a lower immovable surface S1, a first reference line L1 spanning the opening S3 in the width direction is provided on the lower immovable surface S1, and then the left and right support members 10 are each adjusted in the depth direction so that the depth direction distance from the first reference line L1 is approximately the same on the left and right.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a method for installing a water stop device that closes the opening of a building or underground passage with a water stop plate to prevent water from entering when the water level rises. [Background technology]

[0002] When rising water caused by a typhoon or torrential rain enters the opening of a building or underground passage, it may cause serious damage due to flooding. In preparation for such an event, a water stop device is known in the art that installs support members (spacer members) for supporting a water stop plate on the structural wall surface on both sides of the opening of a building, underground passage, etc., and when rising water occurs, connects the water stop plate to the support members to block the opening and prevent water from entering (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-51357 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the structural wall surfaces (visible surfaces) on both sides of the opening may have a slight inclination in the vertical direction due to drying shrinkage of the reinforced concrete that constitutes the structural body. If the support members are installed on such an inclined wall surface of the main structure, the left and right support members may not be positioned as specified, which may result in improper installation of the waterstop plate or reduced waterstop performance. In addition, the inner surface of the opening in the main wall may also have a tilt in the vertical direction, and the floor surface below the water stop and support member may also have a tilt due to a water gradient for draining rainwater, etc. In the past, one method for solving this problem was to install support members on the structural wall on both sides of the opening, then measure the main dimensions between these support members and manufacture a water stop to match these measurements. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention has the following configuration. A waterstop device installation method in which a waterstop device in which the space between left and right support members is closed by a waterstop plate is installed so as to cover an opening in a structural wall portion rising from a lower fixed surface, the waterstop device installation method being characterized in that after a first reference line spanning the opening in the forward direction is established on the lower fixed surface, the positions of the left and right support members are adjusted in the forward direction so that the distance from the first reference line in the forward direction is approximately the same on the left and right. Effect of the Invention

[0006] Since the present invention is configured as described above, the water stop device can be installed with high accuracy regardless of the state of the building structure. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view showing an example of a water stop device installed by the water stop device installation method according to the present invention. [Diagram 2] FIG. 13 is a perspective view showing a state in which each reference line is provided on the lower stationary surface. [Diagram 3] 13 is a perspective view showing the installation of a base member and a support pillar on a wall portion of a main body. FIG. [Figure 4] FIG. 13 is an enlarged perspective view of a main portion showing a state in which a receiving post is fastened to a base member. [Diagram 5] FIG. 13 is a perspective view showing the state in which the support post is fastened to the receiving post. [Figure 6] 1 is a perspective view showing a state in which support members on both sides are attached to a body wall portion. FIG. [Figure 7]7 is an enlarged view of a main part showing how the waterstop plate is attached to the support pole, taken along arrow VII in FIG. 6. [Figure 8] 1(a) and (b) are perspective views of the support member viewed from different directions. [Figure 9] 11 is a perspective view showing another example of a water stop device installed by the water stop device installation method according to the present invention. FIG. [Figure 10] 13 is a plan view showing the state in which each reference line is provided on the lower fixed surface. FIG. [Figure 11] In the direction of arrow M in FIG. 10, (a) shows a state in which a reference line for fastening a base member is provided on a wall of the body, and (b) shows a state in which the base member has been installed. [Figure 12] FIG. 11 is an enlarged perspective view of a main portion showing a state in which a support column is attached to a base member. [Figure 13] 1 is an enlarged perspective view of a main portion showing a state in which a support pole is attached to a base member and a gap between the support member and a body is sealed. FIG. [Figure 14] FIG. 1 is a plan view showing an example of a water stopping device using a center pillar. [Figure 15] This is a diagram of the center pillar of the water stop device viewed from the upstream side, with the left and right water stop plates indicated by dashed double-dashed lines. [Figure 16] FIG. 1 is a perspective view showing an example of a center pillar. [Figure 17] FIG. 13 is an enlarged perspective view of the main part of the lower end side of the center pillar as viewed diagonally from above on the downstream side. [Figure 18] This is a plan view showing a state in which a reference line for installing a center pillar is provided on the lower fixed surface. [Figure 19] The figures show the lower part of the center pillar as seen from the upstream side. (a) shows the state in which the center pillar is tilted due to the inclination of the lower fixed surface, and (b) shows the state in which the inclination of the center pillar has been corrected by the height adjustment mechanism. [Figure 20] An enlarged side view showing how the lower side of the center pillar is fastened to the lower fixed surface by a fastener. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the "upstream side" refers to the upstream side of the expected water flow direction, and the "downstream side" refers to the opposite side to the "upstream side." For example, in Fig. 1, the side where the water stop device 1 is installed relative to the structural wall S2 is the upstream side, and the opposite side is the downstream side. As another example, the upstream side and the downstream side can each be set in the opposite direction to that shown in the figure.

[0009] The "visible direction" is a substantially horizontal direction along the visible surface S2a of the structural wall S2. This visible direction is the same as the width direction of the opening S3, the width direction of the waterstop 20, and the left-right direction in which the left and right support members 10, 10 are arranged. The "prospect direction" is a substantially horizontal direction along the prospective surfaces on both sides of the opening S3 in the structural wall S2. This prospective direction is the same as the thickness direction of the structural wall S2 and the thickness direction of the waterstop 20.

[0010] Moreover, "the inside in the opening width direction" means the inside in the lateral width direction of the opening S3 of the body S. For example, the inside in the opening width direction based on the support member 10 on the right side is the left side, and the inside in the opening width direction based on the support member 10 on the left side is the right side. Moreover, the term "outside in the opening width direction" refers to the outside in the lateral width direction of the opening S3 of the body S. This outside in the opening width direction is the opposite side to the inside in the opening width direction.

[0011] First Embodiment 1 to 8 show a first embodiment of a method for installing a water stop device according to the present invention. The water-stopping device 1 shown in Figure 1 comprises left and right support members 10, 10 spaced apart in the viewing direction, and a number of water-stopping plates 20 that close the spaces between these support members 10, 10, and is installed so that the water-stopping plates 20 cover and block the opening S3 in the structural wall portion S2 rising from the lower fixed surface S1.

[0012] The support members 10 on both sides are configured symmetrically. Each support member 10 comprises a base member 11 fixed to the upstream facing surface S2a of the main body wall portion S2, a receiving support pillar 12 attached to the base member 11, and a support pillar 13 connected to the receiving support pillar 12 and supporting the waterstop plate 20.

[0013] According to the illustrated example, the base member 11 is a long channel steel member having a concave cross section that continues in the vertical direction, and is fixed to the sight surface S2a by fasteners 11b (see FIG. 3). In the base member 11, a plate-like portion in contact with the facing surface S2a is provided with a long hole 11a in the facing direction for inserting the fastener 11b therethrough. The fastener 11b is an anchor member, and for example, an anchor member for concrete called an oar anchor or the like is used.

[0014] The receiving support 12 is a member that overlaps the base member 11 in a generally concave cross section and is formed in a long shape that continues in the vertical direction. The receiving support 12 is fitted into the base member 11 so as to be slidable in the projection direction. In Fig. 4, reference numeral 12a denotes the overlapping portion between the receiving support 12 and the base member 11.

[0015] The facing surface of the receiving post 12 is formed substantially flat and functions as a pressure-contact surface 12b that is watertightly pressed by a waterstop 20 supported by the supporting post 13. The pressure-contact surface 12b is located on the inside in the opening width direction of the connected supporting post 13 (see FIG. 6).

[0016] The support pillar 13 is a member that is fixed to the outer side of the opening width direction of the front surface of the receiving pillar 12 so as to secure the pressure-contact surface 12b on the receiving pillar 12, and is formed into an elongated shape extending in the vertical direction.

[0017] The support pillar 13 can be easily attached to and detached from the receiving pillar 12 by attaching and detaching the fasteners 13c (e.g., screws, bolts, etc.). Therefore, for example, during periods when the possibility of flooding is low, the fasteners 13c can be loosened and the support pillar 13 can be removed so that the support pillar 13 does not obstruct passage.

[0018] This support pillar 13 is provided with multiple sets (three sets according to Figure 5) of pressing engagement portions 13a which engage with the waterstop 20 and press it downward against the lower fixed surface S1, and lower engagement portions 13b which engage with the waterstop 20 at a distance below the pressing engagement portion 13a. The pressing engagement portions 13a are spaced apart in the vertical direction.

[0019] The pressing engagement portion 13a is formed in a generally concave shape when viewed from the side with the upstream side open, and its inner top surface is pressed against the upper engagement protrusion 22 at the width direction end side of the waterstop 20, pressing the waterstop 20 downward (see Figure 7). The lower engaging portion 13b fits into a lower engaging protrusion 23 provided below the upper engaging protrusion 22 on the end side of the water stop plate 20 in the width direction.

[0020] According to the example shown in FIG. 1, the waterstop plates 20 are stacked one on top of the other with both ends fitted into the left and right support members 10, 10. Each waterstop 20 integrally comprises a substantially rectangular main body plate 21, roller-shaped upper and lower engaging protrusions 22 and 23 which protrude outward in the width direction from both the left and right ends of the main body plate 21, a vertical watertight material 24 which is pressed in the vertical direction against the pressurized surface 12b of the receiving pillar 12 at the horizontal end of the main body plate 21, and a lateral watertight material 25 which is pressed in the horizontal direction against the lower fixed surface S1 or the lower side of the main body plate 21 at the lower end of the main body plate 21 (see Figure 7).

[0021] The structural body S on which the water-stopping device 1 is to be installed is, for example, a building made of reinforced concrete, and has a lower immovable surface S1 which is the floor surface, and a structural body wall portion S2 which rises approximately vertically from this lower immovable surface S1, and an opening S3 which is opened and closed by the water-stopping device 1 is provided in the structural body wall portion S2 (see Figure 2).

[0022] The lower immovable surface S1 is a substantially horizontal floor surface, but depending on the construction site, it may be inclined in the viewing or prospective direction due to the water gradient, etc.

[0023] The body wall portion S2 has a substantially vertical front surface S2a and a front surface S2b which is a width direction end of the opening S3. The sight surface S2a and the prospective surface S2b are substantially vertical planes, but depending on the site, etc., they may have a slight inclination or may have slight unevenness.

[0024] Next, a procedure for installing the waterproofing device 1 on the structure S will be described in detail. First, a first reference line L1 is provided on the lower stationary surface S1, and then a second reference line L2 is provided (see FIG. 2). Note that the second reference line L2 may be provided first, and then the first reference line L1 may be provided. These first reference line L1 and second reference line L2 may be, for example, laser light irradiated by a laser marking device, but they may also be lines marked by a marking device other than a laser marking device, or lines drawn using a ruler, etc.

[0025] The first reference line L1 is a line that straddles the opening S3 in the find direction and is approximately parallel to the find surface S2a of the body wall portion S2 at a position away from the upstream side in the assumed flow direction. The position of this first reference line L1 in the prospective direction is set so as to substantially coincide with the pressure-contact surface 12b of the receiving pillar 12 constituting the support member 10. In other words, the dimension in the projecting direction between the pressure-contact surface 12b of the receiving support 12 and the sight surface S2a of the body wall portion S2 is set in advance by design, and the first reference line L1 is set so that it is within a specified tolerance range with respect to this design dimension.

[0026] The second reference line L2 is located at the center of the width direction of the opening S3 in the body wall portion S2 on the lower immovable surface S1, and extends linearly in the projection direction (see FIG. 2).

[0027] Thereafter, a through center line C is provided from the lower immovable surface S1 to the structural body wall portion S2 so that the distance from the second reference line L2 in the view direction is approximately the same on the left and right. The dimension in the front direction from the second reference line L2 to the center line C is, as shown in FIG. 2, a value obtained by adding a predetermined dimension a to 1 / 2 the opening width W of the opening S3. The opening width W is determined by measuring the opening width at the site.

[0028] Next, the left and right base members 11, 11 are fastened to the framework wall portion S2 so as to be aligned with the center line C (FIG. 3). In this manner, by aligning each base member 11 with the corresponding center line C, the distance in the view direction from the second reference line L2 becomes approximately the same for the left and right support members 10.

[0029] Furthermore, each base member 11 is fastened to the mounting surface S2a of the body wall portion S2 by fasteners 11b inserted into the lateral long holes 11a. At this time, the position of each base member 11 in the mounting direction can be finely adjusted by the lateral play of the long holes 11a (see FIG. 3). In this fine adjustment, the position of each base member 11 in the viewing direction is adjusted so that the distance between the left base member 11 and the right base member 11 becomes a value obtained by adding a predetermined dimension b to the dimension X, as shown in FIG.

[0030] The above dimensions a and b are set in advance taking into consideration the dimensions and tolerances of each part so that the dimension between the receiving pillars 12, 12 on both sides after the water stop device 1 is completed will be the specified design dimension X (see FIG. 1).

[0031] Next, the receiving posts 12 are fitted onto each of the base members 11 . The position of the receiving pillar 12 is adjusted in the forward direction by sliding the overlapping portion 12a with the base member 11 in the forward direction. In this position adjustment, the left and right support pillars 12 are each adjusted in the forward direction so that the forward distance from the first reference line L1 to the pressure-contact surface 12b of the support pillar 12 is approximately the same for the support pillars 12 of the left and right support members 10. According to an example shown in Figs. 4 and 5, this position adjustment is performed so that the pressure-contact surface 12b of the receiving pillar 12 approximately coincides with the first reference line L1 in the projection direction.

[0032] After this, the receiving pillar 12 is first fastened to the base member 11 from the inside in the opening width direction by fasteners 12c (e.g., screws, bolts, etc.), and then fastened to the base member 11 from the outside in the opening width direction by fasteners 12c (see Figure 4). In this way, by first fastening the receiving support 12 from the inside in the opening width direction, the inner dimension between the left and right receiving support 12, 12 can be made closer to the design dimension X. In turn, the engagement state between the supporting support 13 and the supporting member 10, and the pressing state of the vertical watertight material 24 of the waterstop plate 20 against the receiving support 12 can be improved. In other words, if the receiving support 12 is first attached from the outside in the opening width direction, the inner dimension between the left and right receiving supports 12, 12 is likely to be smaller than the design dimension X due to dimensional errors in the lateral direction of the receiving support 12 and the base member 11, but the above manufacturing method can reduce such dimensional errors.

[0033] Next, the corresponding support columns 13 are fastened to the respective receiving columns 12 by fasteners 13c (e.g., screws, bolts, etc.). At this time, the fasteners 13c are loosely inserted into vertical long holes (not shown) provided in the support columns 13 and screwed into the receiving columns 12. In this screwed state, the support columns 13 are finely adjusted in the height direction by the long holes, and then the fasteners 13c are tightened.

[0034] In adjusting the height of the support pillars 13, the vertical dimension H (see Figs. 6 and 7) from the lower immovable surface S1 to the pressure engagement portion 13a is set within a predetermined dimensional range for both the left and right support pillars 13, 13. This dimensional range is appropriately set so that when the waterstop 20 is engaged with the support pillars 13 (see the two-dot chain line in Fig. 7), the lateral watertight material 25 at the lower end of the waterstop 20 is pressed against the lower immovable surface S1 to achieve a good degree of crushing for watertightness.

[0035] Next, the inner corners between the support member 10 and the body wall portion S2, and the inner corners between the support member 10 and the lower stationary surface S1, etc. are filled with a sealing material 14 (for example, a silicone caulking material) (see FIG. 8).

[0036] After the left and right support members 10, 10 have been installed on the structural wall portions S2 on both sides of the opening S3 as described above, a water stop plate 20 is attached to the support members 10, 10, for example, if flood damage is expected to occur within a short period of time.

[0037] Therefore, according to the above-mentioned water-stopping device 1 and its manufacturing method, the support members 10, 10 can be positioned with high precision in the facing direction and the facing direction based on the first reference line L1, the second reference line L2, etc. set up on site, and the pressure engagement portions 13a, 13a on both sides can also be positioned with high precision. As a result, the pressure contact state between the vertical waterproof materials 24, 24 on both sides of the waterstop 20 and the left and right supporting pillars 12, 12, and the pressure contact state between the horizontal waterproof material 25 at the lower end of the waterstop 20 and the lower fixed surface S1 can both be maintained well. In particular, the water-stopping device 1 can provide good water-stopping performance even when the body wall S2 is slightly inclined, when there is a slight gradient in the lower immovable surface S1, or when there are slight irregularities in the body wall S2 or the lower immovable surface S1.

[0038] Second Embodiment 9 to 13 show a second embodiment of a method for installing a water stop device according to the present invention. The water-stopping device 2 shown in Figure 9 comprises left and right support members 30, 30 spaced apart in the viewing direction, and a number of water-stopping plates 20 that close the space between these support members 30, 30, and the water-stopping plates 20 cover and seal the opening S3 in the body wall portion S2 rising from the lower fixed surface S1.

[0039] Each support member 30 includes a base member 31 fixed to the visible surface S2b on the opening side of the main wall portion S2, and a support pillar 32 connected to the base member 31 and supporting the waterstop 20 (see FIG. 12).

[0040] The base member 31 is a long channel steel member with a concave opening facing inward in the opening width direction and a concave cross section continuing in the vertical direction, and is fixed to the projected surface S2b of the opening in the skeleton wall portion S2 by a fastener 31b (see FIG. 11) such as an anchor member. The fastener 31b, like the fastener 47 (see FIG. 20) described later, is composed of a screwed member (such as an internally threaded anchor) that is embedded in the skeleton wall portion S2 first, and a bolt-shaped screwing member that is screwed into the screwed member, In the base member 31, a plate-like portion in contact with the front surface S2b is provided with a plurality of elongated holes 31a (see FIG. 12) in the front direction for inserting the fasteners 31b therethrough.

[0041] As shown in FIG. 11, a plurality of the long holes 31a are provided at intervals in the vertical direction on each of the two rows of positioning lines L1a, L1a, and are arranged in a staggered pattern according to the illustrated example.

[0042] The support pillar 32 has an approximately L-shaped cross section that is integral with the base member 31 and a receiving portion 32b that protrudes inward from the engaging portion 32a in the opening width direction and receives the vertical waterproof material 24 of the waterstop 20, and the cross section is continuous in a long length in the vertical direction.

[0043] The fitting portion 32a is a portion that fits into the base member 31 in a generally concave cross section in the vertical direction. The fitting portion 32a has a portion 32a3 (see FIG. 12) that overlaps with the base member 31 so as to be slidable in the viewing direction. The inner surface of this fitting portion 32a in the opening width direction is provided with multiple sets (two sets according to Figure 12) of pressing engagement portions 32a1 that engage the waterstop 20 and press it downward against the lower fixed surface S1, and lower engagement portions 32a2 that engage with the waterstop 20 at a distance below the pressing engagement portion 32a1.

[0044] The upstream side surface (visible surface) of the receiving portion 32b is formed to be substantially flat. This surface functions as a pressure-contact surface 32b1 that is pressure-contacted by the vertical watertight material 24 of the waterstop 20 in a watertight manner.

[0045] In the water stop device 2, the water stop plate 20 has substantially the same configuration as that of the water stop device 1 described above, and according to the illustrated example, two of them are stacked vertically.

[0046] Next, the procedure for installing the waterproofing device 2 on the structure S will be described in detail. First, as shown in Fig. 10, a first reference line L1 is marked on the lower stationary surface S1 by the above-mentioned marking device or the like, and then a second reference line L2 is marked. Note that the second reference line L2 may be marked first, and then the first reference line L1 may be marked.

[0047] The first reference line L1 is a straight line having a length spanning the opening S3 in the find direction. In the illustrated example, the first reference line L1 is located upstream of the find surface S2a of the body wall S2 in the expected flow direction and is approximately parallel to the find surface S2a.

[0048] Next, two parallel positioning lines L1a, L1a are provided, spaced apart by a dimension d2, so as to be spaced a dimension d1 from the first reference line L1 in the projection direction (downstream) and located between the left and right projection surfaces S2b, S2b. These positioning lines L1a, L1a are lines for positioning the base member 31 in the projection direction, and are provided from the lower immovable surface S1 to the projection surface S2b (see Figs. 10 and 11).

[0049] The upstream positioning line L1a is a line used for aligning the slots 31a in the upstream row of the base member 31, and is located at a position spaced a dimension d1 from the first reference line L1. The dimension d1 is set appropriately in advance depending on the design position of the support pillar 32 in the projection direction. The downstream positioning line L1a is a line used for aligning the slots 31a in the downstream row of the base member 31, and is located downstream away from the upstream positioning line L1a by a dimension d2. The dimension d2 is set to be the same as the distance between the two rows of the long holes 31a in the base member 31.

[0050] Next, left and right positioning lines L2a, L2a are provided so that the distances from the second reference line L2 outward in the opening width direction are substantially the same on the left and right (see FIG. 10).

[0051] Each positioning line L2a is a line for adjusting the position of the support pillar 32 in the projection direction. 10, the positioning line L2a is disposed at a distance of X / 2 from the first reference line L1 in the view direction and is disposed so as to be substantially perpendicular to the first reference line L1, where X is the designed inner dimension between the left and right support members 30, 30 (see FIG. 9).

[0052] After the reference lines and the positioning lines are provided as described above, the base member 31 is fixed to the visible surfaces S2b on both sides of the opening S3. The base member 31 is pressed against the projection surface S2b so that the two rows of elongated holes 31a are aligned with the two positioning lines L1a, L1a, and is fastened to the projection surface S2b by fasteners 31b inserted into the elongated holes 31a. At this time, fine adjustment is made by the play in the projection direction within the long hole 31a so that the projection direction positions of the two left and right base members 31, 31 become approximately the same.

[0053] Next, the support columns 32 are attached to the base member 31 (see FIGS. 12 and 13). The support pillar 32 is fitted into the base member 31, and its position is adjusted by sliding an overlapping portion 32a3 with the base member 31 in the front-back direction and in the up-down direction.

[0054] In this position adjustment, the inner end portion 32b2 (see Figure 13) of each support pillar 32 in the opening width direction is aligned with the positioning line L2a so that the viewing distance from the second reference line L2 to the support pillar 32 becomes approximately the same on the left and right. Furthermore, the vertical dimension H (see FIG. 13) between the pressing engagement portion 32a1 of each support pillar 32 and the lower immovable surface S1 is set to be within a predetermined dimensional range for both the left and right support pillars 32, 32. This dimensional range is preset so that the lateral watertight material 25 of the supported waterstop 20 is pressed against the lower immovable surface S1 and appropriately contracts.

[0055] Thereafter, first, the upstream portion of the fitting portion 32a is fastened to the base member 31 by the fastener 32c, and then, the downstream portion of the fitting portion 32a is fastened to the base member 31 by the fastener 32c.

[0056] Next, the sealant 14 is filled into the inner corners between the support member 30 and the body wall portion S2 and the inner corners between the support member 30 and the lower stationary surface S1 (see FIG. 13).

[0057] After the left and right support members 30, 30 have been installed on the structural wall portions S2 on both sides of the opening S3 as described above, a water stop plate 20 is attached to the support members 30, 30, for example, if flood damage is expected to occur within a short period of time.

[0058] Therefore, according to the manufacturing method of the waterstop device 2, as in the manufacturing method of the waterstop device 1 described above, it is possible to maintain well the pressure contact state between the vertical watertight materials 24, 24 on both sides of the waterstop plate 20 and the left and right support pillars 32, and the pressure contact state between the horizontal watertight material 25 at the lower end of the waterstop plate 20 and the lower fixed surface S1. In particular, the water-stopping performance of the water-stopping device 2 can be satisfactorily demonstrated even when the body wall portion S2 is slightly inclined, when there is a slight gradient in the lower immovable surface S1, or when there are slight irregularities in the body wall portion S2 or the lower immovable surface S1.

[0059] <Third embodiment> 14 to 20 show a waterproof device 3 according to a third embodiment of the present invention. In this waterstop device 3, the waterstop plates 20 are arranged in two rows in the front direction in the above-mentioned waterstop device 1, and these two rows of waterstop plates 20, 20 are supported by the support members 10, 10 on both sides and a center pillar 40 on the central side. The waterstops 20 in each row are stacked one on top of the other (see FIG. 15). The center pillar 40 supports a plurality of (three in the illustrated example) waterstop plates 20 stacked on each of one half side and the other half side in the width direction.

[0060] The center column 40 comprises a center column main body 41 that stands upright on the lower fixed surface S1, a plate-shaped base 42 that supports the center column main body 41 at its lower end, a plurality of height adjustment mechanisms 43 that adjust the vertical dimensions from the lower fixed surface S1 on one and the other sides of the base 42 in the forward direction and on one and the other sides in the face-to-face direction, an elastic watertight material 44 that is pressed against the lower fixed surface S1, left and right pressing engagement portions 45, 45 that press the engaged left and right waterstop plates 20, 20 downward, respectively, against the lower fixed surface S1, and left and right lower engagement portions 46, 46 that engage with the left and right waterstop plates 20, 20 at a distance below the pressing engagement portions 45, 45.

[0061] The center pillar body 41 is formed into a rectangular pillar shape that continues in the vertical direction, and the left and right ends of its upstream surface are pressure-contact surfaces 41a that are pressed against the vertical watertight material 24 of the waterstop 20 (see Figures 15 and 16). The pressure-contact surfaces 41a are flat surfaces that extend in the vertical direction.

[0062] The base 42 is a member connected to the lower end of the center pillar main body 41, and in the illustrated example, is formed in an approximately T-shaped plate shape having protrusions 42a, 42a, 42b on both the left and right sides and the downstream side, respectively (see Figures 16 and 17). Each of the left and right protrusions 42a, 42a is provided with a fastener insertion hole 42a1 shaped as a long hole in the viewing direction and a height adjustment mechanism 43. The downstream protrusion 42b is provided with a fastener insertion hole 42b1 shaped as a round hole and a height adjustment mechanism 43.

[0063] The height adjustment mechanism 43 is a member that is screwed into the base 42 from below, and the vertical height of the disk-shaped portion on the lower end side can be changed by adjusting the amount of screwing through a rotation operation.

[0064] The elastic watertight material 44 is made of an elastic material such as rubber or elastomer resin, and is provided on the upstream side of the lower surface of the base 42 in a long shape extending in the forward direction. The elastic watertight material 44 is pressed against the lower immovable surface S1 in a watertight manner.

[0065] The pressure engagement portions 45 and the lower engagement portions 46 are provided in two rows on the upstream side of the center pillar main body 41 between the left and right pressure-contact surfaces 41a so as to engage with the left and right water stops 20, 20, respectively. A plurality of sets of the pressure engagement portions 45 and the lower engagement portions 46 in each row are provided in the vertical direction so as to correspond to the upper engagement protrusions 22 and the lower engagement protrusions 23 of the waterstop plates 20 stacked vertically.

[0066] The pressing engagement portion 45 and the lower engagement portion 46 are configured substantially similarly to the pressing engagement portion 13 a and the lower engagement portion 13 b of the support member 10 .

[0067] In the waterstop device 3, each waterstop plate 20 is pressed downward by engaging the upper engagement protrusion 22 and the lower engagement protrusion 23 at one end in the width direction with the pressing engagement portion 13a and the lower engagement portion 13b of the support member 10, respectively, and by engaging the upper engagement protrusion 22 and the lower engagement protrusion 23 at the other end with the pressing engagement portion 45 and the lower engagement portion 46 of the center column 40, respectively, thereby pressing the lateral watertight material 25 at the lower end against the lower fixed surface S1.

[0068] Next, features of the installation method of the water stop device 3 having the above configuration will be described in detail. After the support members 10, 10 are attached to the body wall portions S2 on both sides of the opening S3, respectively, a third reference line L3 located at the center of the left and right support members 10, 10 and a fourth reference line L4 along the visible surfaces of the left and right support members 10, 10 (in the illustrated example, the pressure-contact surface 12b of the receiving pillar 12) are provided on the lower immovable surface S1, as shown in Figure 18 (see Figure 18).

[0069] The third reference line L3 is based on the inner dimension X' of the left and right support pillars 12, 12 on the lower fixed surface S1 and extends linearly in the projection direction at the center position X' / 2 (see Figure 18). The dimension X' may be the actual measured inner dimension between the previously installed left and right support pillars 12, 12. Note that this dimension X' may also be the design inner dimension.

[0070] The fourth reference line L4 is a straight line connecting the pressure-contact surfaces 12b, 12b (contact surfaces with the support pillar 13) of the left and right receiving pillars 12, 12 previously installed on the lower immovable surface S1.

[0071] Next, a positioning line L4a for the fastener 47 is provided based on the fourth reference line L4. The positioning line L4a is provided at a position spaced a predetermined dimension e1 downstream from the fourth reference line L4 and straight and substantially parallel to the fourth reference line L4.

[0072] Then, on the positioning line L4a, at positions spaced a predetermined distance e2 on both sides in the viewing direction from the third reference line L3, the screwed members 47b constituting the fastener 47 are embedded. Further, on the third reference line L3, a screwed member 47b is embedded at a position spaced a predetermined distance e3 downstream from the positioning line L4a.

[0073] The fastener 47 is composed of a male-threaded screw member 47a (for example, a bolt, etc.) and a female-threaded screwed member 47b into which the screw member 47a is screwed. The screwed member 47b may be called an internal thread anchor or an internal thread anchor, etc.

[0074] The dimension e2 is half the dimension between the fastener insertion holes 42a1, 42a1 in the center post 40 (see FIG. 17). The dimension e3 is the dimension in the prospective direction between the fastener insertion holes 42a1, 42a1 and the fastener insertion hole 42b1. These dimensions e2 and e3 may be actual measurements of the base 42, or may be design dimensions.

[0075] In addition, the reference numeral 47b' in Fig. 18 denotes a fastening portion for fastening a connecting member (not shown) that is provided as necessary. The connecting member is a member (such as a turnbuckle) that connects and reinforces the area between the top side of the center pillar 40 and the lower immovable surface S1.

[0076] Next, the center post 40 in the upright state is positioned so that the fastener insertion holes 42a1, 42a1, 42b1 are substantially aligned with the screwed members 47b, 47b, 47b on the lower immovable surface S1.

[0077] Next, the multiple height adjustment mechanisms 43 are adjusted so that a predetermined amount of compression of the elastic waterproof material 44 is ensured in both the forward and backward directions, and the vertical dimension H (see Figure 13) from the lower fixed surface S1 to the pressure engagement portion 13a of the left and right support members 10, 10, and the vertical dimensions H1, H2 (Figure 19) from the lower fixed surface S1 to the two left and right pressure engagement portions 45, 45 of the center column 40 are all within a predetermined dimensional range. Here, the predetermined dimensional range is appropriately set so that the lateral watertight materials 25, 25 of the left and right waterstop plates 20, 20 are watertightly pressed against the lower immovable surface S1.

[0078] During the adjustment, for example, if the lower immovable surface S1 is inclined downward at an angle α in one direction in the finding direction, the center pillar 40 also inclines at the angle α in the same direction (see FIG. 19(a)). In such a case, the downward protrusion amount of the height adjustment mechanism 43 on the high-position side (left side of Figure 19) is reduced so that the vertical dimension from the lower fixed surface S1 to the pressure engagement portion 45 on the low-position side (H2 in Figure 19) approaches the vertical dimension from the lower fixed surface S1 to the pressure engagement portion 45 on the high-position side (H1 in Figure 19) (see Figure 19(b)). In other words, if, contrary to the above, the downward protrusion amount of the height adjustment mechanism 43 on the low-position side (right side in FIG. 19) is increased so that the vertical dimension on the high-position side (H1 in FIG. 19) is brought closer to the vertical dimension on the low-position side (H2 in FIG. 19), there is a risk that the compression amount of the elastic watertight material 44 and the lateral watertight material 25 on the low-position side will be insufficient, but this can be prevented by doing as described above.

[0079] Therefore, according to the manufacturing method of the waterstop device 3, the pressure contact state between the support pillar 32 and the vertical watertight material 24 of the waterstop plate 20, the pressure contact state between the center pillar 40 and the vertical watertight material 24 of the waterstop plate 20, and the pressure contact state between the horizontal watertight material 25 at the lower end of the waterstop plate 20 and the lower fixed surface S1 can all be maintained well. In particular, the water-stopping performance of the water-stopping device 2 can be satisfactorily demonstrated even when the body wall portion S2 is slightly inclined, when there is a slight gradient in the lower immovable surface S1, or when there are slight irregularities in the body wall portion S2 or the lower immovable surface S1.

[0080] The present invention is not limited to the above-mentioned specific configuration, and can be modified as appropriate without departing from the gist of the present invention.

[0081] <Summary> As described above, the above embodiments disclose the following inventions. (1) A waterstop device installation method in which a waterstop device in which the space between left and right support members is closed by a waterstop plate is installed so as to cover an opening in a structural wall portion rising from a lower fixed surface, characterized in that a first reference line spanning the opening in the forward direction is provided on the lower fixed surface, and then the positions of the left and right support members are adjusted in the forward direction so that the distance from the first reference line in the forward direction is approximately the same on the left and right (see Figures 1 to 20). (2) A waterstop device installation method as described in (1) (see Figures 2 and 10), characterized in that the first reference line is provided at a position away from the main body wall and upstream of the expected flow direction. (3) A water stop device installation method as described in (1) or (2) (see Figures 2 to 6), characterized in that a second reference line is provided on the lower fixed surface so as to be positioned at the center of the width of the opening, and then the distance in the visual direction from the second reference line is made approximately the same for the left and right support members. (4) A waterstop device installation method described in any one of (1) to (3) (see Figures 6 and 7), characterized in that the support member is provided with a pressure engagement portion that presses the engaged waterstop plate downward to the lower fixed surface, and the left and right support members are each adjusted in height so that the vertical dimensions from the lower fixed surface to the pressure engagement portion are within a predetermined dimensional range on both the left and right sides. (5) The support member comprises a base member fixed to the upstream side of the main body wall portion, a receiving support pillar attached to the base member, and a support support pillar connected to the receiving support pillar and supporting the waterstop plate, and a pressure-contact surface is provided on the visible surface of the receiving support pillar which is watertightly pressed against the waterstop plate supported by the receiving support pillar, and the position adjustment in the projected direction of the support member is performed so that the projected distance from the first reference line to the pressure-contact surface is approximately the same for the left and right receiving supports (1) to (4), characterized in that (see Figure 4). (6) The water stop device installation method described in (5) (see Figure 4) is characterized in that after the overlapping portion with the base member is slid in the projection direction to adjust the position in the projection direction, the support post is first secured to the base member from the inside in the opening width direction, and then secured to the base member from the outside in the opening width direction. (7) A water stop device installation method described in (5) or (6) (see Figure 3), characterized in that the base member has a long hole in the viewing direction, and the base member is fastened to the upstream side of the main body wall portion by a fastener inserted into the long hole. (8) The support member comprises a base member fixed to the inner surface of the opening side of the main wall portion, and a support pillar connected to the base member and supporting the waterstop plate, and the position adjustment of the support member in the projected direction involves adjusting the position of the base member in the projected direction so that the projected distance from the first reference line to the support pillar is approximately the same on the left and right (see Figures 10 to 13).A waterstop device installation method described in any of (1) to (3) (see Figures 10 to 13). (9) The water-stopping device installation method described in claim 8 (see Figure 11), characterized in that the base member has a long hole in the projection direction, and the base member is fastened to the inner surface of the opening side of the main body wall portion by a fastener inserted into the long hole. (10) The support member comprises a base member fixed to the inner surface of the opening side of the main wall portion, and a support pillar connected to the base member and supporting the waterstop plate, and the support pillar is positioned by sliding the overlapping portion with the base member in the finder direction so that the distance in the finder direction from the second reference line is approximately the same on the left and right (waterstop device installation method described in 3 (see Figures 12 and 13)). (11) A waterstop device installation method comprising two waterstop plates arranged side by side in the visible direction between the left and right support members and a center pillar supporting the waterstop plates at the center, characterized in that a third reference line located approximately at the center of the left and right support members and a fourth reference line along the visible surfaces of the left and right support members are provided on a lower fixed surface, and the center pillar is positioned based on the third reference line and the fourth reference line (see Figures 14 to 20).The waterstop device installation method described in any of (1) to (10) (see Figures 14 to 20) (12) A method for installing a waterstop device as described in (11) (see Figures 15 to 17) is characterized in that a plurality of height adjustment mechanisms are provided on the lower end side of the center column to adjust the vertical dimensions from the lower fixed surface on one side and the other in the forward direction and on one side and the other in the face-to-face direction, and an elastic watertight material is pressed against the lower fixed portion, and the height adjustment mechanisms are adjusted so as to ensure a predetermined amount of compression of the elastic watertight material. (13) The water stop device installation method described in (12) is characterized in that the center column is provided with two pressure engagement portions on the left and right sides which press the engaged left and right water stop plates downward to press them against a lower fixed surface, and the multiple height adjustment mechanisms are adjusted so that the vertical dimensions from the lower fixed surface to the pressure engagement portions of the left and right support members and the vertical dimensions from the lower fixed surface to the two left and right pressure engagement portions of the center column are all within a specified dimensional range (see Figures 6 and 15). (14) A water stop device installation method described in (13) (see Figure 19), characterized in that when the lower fixed surface is inclined in the left-right direction, the height adjustment mechanism is adjusted so that the vertical dimension from the lower fixed surface to the pressure engagement portion on the low position side is brought closer to the vertical dimension from the lower fixed surface to the pressure engagement portion on the high position side. [Explanation of symbols]

[0082] 1,2,3:Water stop device 10: Support member 11: Base member 12: Support pillar 12b: Pressure contact surface 13:Support strut 13a: Pressing engagement part 20: Water stop 24: Vertical watertight material 25: Lateral watertight material 30: Support member 40: Middle pillar C: Center line S:Structure S1: Lower fixed surface S2:Structure wall part S2a: Surface S3: Opening L1: First reference line L1a: Positioning line L2: Second reference line L2a: Positioning line L3: The third reference line L4: The fourth reference line

Claims

1. A water stop device installation method in which a water stop plate is used to close the gap between left and right support members, and the water stop device is installed so as to cover an opening in a wall portion of a structure rising from a lower fixed surface, A water-stopping device installation method characterized by setting a first reference line on the lower fixed surface that spans the opening in the forward direction, and then adjusting the positions of the left and right support members in the forward direction so that the distance from the first reference line in the forward direction is approximately the same on the left and right.

2. 2. The water stop device installation method according to claim 1, wherein the first reference line is provided at a position away from the wall portion of the structure on the upstream side in the expected flow direction.

3. A water-stopping device installation method as described in claim 1, characterized in that a second reference line is set on the lower fixed surface so as to be positioned at the center of the width of the opening, and then the distance from the second reference line in the visual direction is made approximately the same for the left and right support members.

4. The support member is provided with a pressing engagement portion that presses the engaged water stop downward against the lower fixed surface, A method for installing a water stop device as described in any one of claims 1 to 3, characterized in that the left and right support members are each adjusted in height so that the vertical dimensions from the lower fixed surface to the pressure engagement portion are within a specified dimensional range on both the left and right sides.

5. The support member includes a base member fixed to the upstream side surface of the body wall portion, a receiving support pole attached to the base member, and a support pole connected to the receiving support pole to support the waterstop plate, A pressure-contact surface is provided on a visible surface of the receiving support pillar and is watertightly pressure-contacted by the waterstop plate supported by the receiving support pillar, A water-stopping device installation method as described in claim 1, characterized in that the position adjustment in the projected direction of the support member is performed so that the projected distance from the first reference line to the pressurized surface is approximately the same for the left and right supporting pillars.

6. A water stop device installation method as described in claim 5, characterized in that the support pillar is first secured to the base member from the inside in the opening width direction, and then secured to the base member from the outside in the opening width direction, after the overlapping portion with the base member is slid in the projection direction to adjust its position in the projection direction.

7. The base member is provided with a long hole in a direction of sight, 6. The water stop device installation method according to claim 5, wherein the base member is fastened to the upstream side surface of the wall portion of the body by a fastener inserted into the long hole.

8. The support member includes a base member fixed to an inner surface of the opening side of the body wall portion, and a support pillar connected to the base member and supporting the waterstop plate, A water-stopping device installation method as described in claim 1, characterized in that in adjusting the position of the support member in the projected direction, the base member is positioned in the projected direction so that the projected distance from the first reference line to the support pillar is approximately the same on the left and right.

9. The base member is provided with a long hole in the projection direction, 9. The water stop device installation method according to claim 8, wherein the base member is fastened to the inner surface of the opening side of the body wall portion by a fastener inserted into the long hole.

10. The support member includes a base member fixed to an inner surface of the opening side of the body wall portion, and a support pillar connected to the base member and supporting the waterstop plate, A water stop device installation method as described in claim 3, characterized in that the support pillar is positioned by sliding the overlapping portion with the base member in the finder direction so that the finder direction distance from the second reference line is approximately the same on the left and right sides.

11. A water stop device installation method comprising two water stops arranged side by side in a viewing direction between the left and right support members and a center column supporting the water stops at a center side, A third reference line located approximately at the center of the left and right support members and a fourth reference line along the visible surfaces of the left and right support members are provided on the lower fixed surface, 2. The water stop device installation method according to claim 1, further comprising the step of positioning the center post based on the third reference line and the fourth reference line.

12. A plurality of height adjustment mechanisms are provided on the lower end of the center column to adjust the vertical dimensions from the lower immovable surface on one side and the other side of the projection direction and one side and the other side of the view direction, respectively, and an elastic watertight material is provided to be pressed against the lower immovable portion, The watertight device installation method according to claim 11, characterized in that the height adjustment mechanism is adjusted so as to ensure a predetermined amount of compression of the elastic watertight material.

13. The center post is provided with two pressing engagement parts on the left and right that press the engaged left and right waterstop plates downward and press them against the lower fixed surface, A water stop device installation method as described in claim 12, characterized in that the multiple height adjustment mechanisms are adjusted so that the vertical dimensions from the lower fixed surface to the pressure engagement portions of the left and right support members, and the vertical dimensions from the lower fixed surface to the two pressure engagement portions on the left and right of the center column are all within a specified dimensional range.

14. A water stop device installation method as described in claim 13, characterized in that when the lower fixed surface is inclined in the left-right direction, the height adjustment mechanism is adjusted so that the vertical dimension from the lower fixed surface to the pressure engagement portion on the low position side is brought closer to the vertical dimension from the lower fixed surface to the pressure engagement portion on the high position side.

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