JPH1121893A - Waterproofing method and device for wall surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perfectly prevent water leakage from the screw penetrating part of a waterproof sheet. SOLUTION: A screw member 14 is installed in the position of a metal column 13 of a wall 11, and a waterproof sheet 21 is laid along the wall 11 from the outside surface of the screw member 14. The position on the sheet 21 mating with the screw member 14 is strucken from the outside surface with a hammer, etc., and a hole 22 is bored in the sheet 21. Through this hole 22, a male threaded part 18 is protruded to the outside surface. A water stopping member 23 formed in a doughnut-shaped disc from a water stopping-material 24 of non-vulcanized butyl rubber and a reinforcing material 25 of rubber is mounted on the male threaded part 18, and then a coupling metal piece 15 is driven to the male threaded part 18. Accordingly part of the water stopping material 24 is fed to between the hole 22 and male threaded part 18, between the member 23 and male threaded part 18, and between the metal piece 15 and male threaded part 18, and these areas are sealed perfectly. Thus prevention of water leakage is established perfectly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for waterproofing a wall such as a retaining wall or a continuous underground wall, and more particularly to a method for completely preventing water leakage from a portion of a connecting metal fitting such as a sheet pile retainer to the wall. The present invention relates to a waterproofing method and a waterproofing device for a wall surface.

[0002]

2. Description of the Related Art Conventionally, in the case of constructing a basement floor of a building or the like, as shown in FIG. 13, a formwork 2 is installed facing a wall 1 such as a retaining wall or a continuous underground wall. Concrete is cast between the wall body 1 and the formwork 2 to construct a concrete wall.
In order to support the load imposed on the wall, a method of holding the form 2 with the wall 1 via the concrete form holding device 3 is adopted.

[0003] This concrete form holding apparatus 3 is shown in FIG.
As shown in FIG. 3, a screw member 4 attached to the wall surface of the wall body 1, a connection metal member 5 such as a sheet metal retainer screwed and connected to the screw member 4, and one end of the connection metal member 5 is screwed into the connection metal member 5. A separator 6 and an end stopper 7 such as a peacon attached to the other end of the separator 6, and the mold 2 is supported by the end stopper 7 from the inside.

[0004]

When a concrete wall is constructed by casting concrete between the wall body 1 and the formwork 2, a large number of concrete molds are provided on the concrete wall in the thickness direction. Since the frame holding device 3 is left in a penetrated state, if groundwater leaks on the wall 1 side, this groundwater leaks inside the concrete wall through the concrete form holding device 3. There is a problem.

Therefore, in some cases, a waterproof sheet is provided along the wall surface of the wall 1, but even when the waterproof sheet is provided, the concrete form holding device 3 penetrates the waterproof sheet. As a result, the intended effect cannot be expected unless the penetration portion is completely waterproof-sealed.

However, conventionally, when the concrete form holding apparatus 3 is arranged to penetrate the waterproof sheet, a hole is made in the waterproof sheet using a knife or the like. Unnecessary tearing occurs, and complete sealing cannot be expected even if the penetrating portion is sealed with a caulking material or the like. In this case, a concrete wall must be further constructed inside the concrete wall constructed between the wall body 1 and the formwork 2 to have a double wall structure, and the construction cost of the building is greatly increased. At the same time, there is a problem that the construction period is prolonged.

The present invention has been made in view of such a situation, and is easy to construct, has no fear of causing unnecessary tearing of the waterproof sheet, and completely prevents water leakage from a threaded portion of the screw member through the waterproof sheet. It is an object of the present invention to provide a method and an apparatus for waterproofing a wall surface which can be prevented.

[0008] Another object of the present invention is to make it possible to easily and surely make holes by simply hitting the waterproof sheet lightly.

Another object of the present invention is to prevent the position of the holes formed in the waterproof sheet from being displaced from the position of the screw member, and to prevent the waterproof sheet disposed along the wall surface from becoming loose. It is to make.

[0010] Another object of the present invention is to provide a method for hitting a waterproof sheet even when an oblique force is applied to a screw member.
An object of the present invention is to prevent the connection strength between the screw member and the wall from being reduced.

Still another object of the present invention is to provide a stable connection strength by keeping the screwing amount of the screw member into the wall constant.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method of mounting a screw member having a male screw portion for connecting a connecting bracket on a wall surface such as an earth retaining wall or a continuous underground wall.
A waterproof sheet is arranged along the wall surface from the outer surface side, and then a position corresponding to the screw member of the waterproof sheet is beaten from the outer surface side, thereby making a hole in the waterproof sheet to project the male screw portion, A donut plate-shaped water-stopping member, at least part of which is formed of non-vulcanized butyl rubber, is attached to the male screw portion protruding from the hole, and then a connection fitting is screwed into the male screw portion to stop water at the screw member position. It is characterized by doing so.

By the way, when the connecting fitting is screwed into the male screw portion, the donut-shaped water-stopping member also rotates around the male screw portion,
The non-vulcanized butyl rubber is entangled with the male screw portion, and the space between the center hole of the water blocking member and the male screw portion and the space between the hole of the waterproof sheet and the male screw portion are sealed. For this reason, the water stop at the screw member position is completely performed, and it is possible to completely prevent the water leak from the waterproof sheet penetrating portion of the screw member.

Further, since the hole of the waterproof sheet can be pierced by hitting a position corresponding to the screw member of the waterproof sheet from the outer surface side, unnecessary tearing of the waterproof sheet is caused unlike the case where a knife or the like is used. Therefore, it is possible to easily drill only the holes necessary for penetrating the screw member, and the construction is easy.

Further, since the male screw portion has a short length, unlike the case where a connection fitting is connected to the male screw portion and a hole is formed at a position corresponding to the connection metal fitting on the waterproof sheet, the hole formed in the waterproof sheet is different. There is no possibility that the position of the screw member is displaced from the position of the screw member, and there is no possibility that the waterproof sheet disposed along the wall surface is loosened.

According to the present invention, a screw member having a male screw portion for connecting a connecting bracket is attached to a wall surface such as a retaining wall or a continuous underground wall, and at least a part of the male screw portion is made of non-vulcanized butyl rubber. Attach the formed donut plate water-stopping member, then arrange the waterproof sheet along the wall surface from the outer surface side of the screw member, and then strike the waterproof sheet at the position corresponding to the screw member from the outer surface side. Accordingly, the male screw portion is made to protrude by making a hole in the waterproof sheet, and then the connecting fitting is screwed into the male screw portion that protrudes from the hole to stop the water at the screw member position.

When the connection fitting and the male screw portion are screwed into each other, the donut-shaped water-stopping member is pressed between the wall surface and the waterproof sheet, and the non-vulcanized butyl rubber is pressed between the center hole of the water-stopping member and the male screw portion. And between the hole of the waterproof sheet and the external thread portion to seal this portion. Therefore, it is possible to completely stop the water at the screw member position.

According to the present invention, a screw member having a male thread portion for connecting a connecting bracket is attached to a wall surface such as an earth retaining wall or a continuous underground wall, and a waterproof sheet is provided along the wall surface from the outer surface side. Then, by hitting the position corresponding to the screw member of the waterproof sheet from the outer surface side, a hole is made in the waterproof sheet to project the male screw portion, and then a sealant is attached to at least the external surface of the male screw portion, and the male screw portion is formed. The connection fitting is screwed into the screw member to stop the water at the screw member position.

In the case where a waterproof sheet is provided to waterproof a wall surface, the biggest cause of water leakage is tearing of the waterproof sheet which occurs when holes are formed in the waterproof sheet. Therefore, if only the holes corresponding to the male screw portions can be formed in the waterproof sheet, almost complete water stopping effect can be expected even by the conventional waterproofing method, unless a large amount of groundwater leaks on the wall surface side.

In the present invention, the waterproof sheet is punched at a position corresponding to the screw member, so that the waterproof sheet can be perforated. Only holes corresponding to the parts can be drilled. For this reason, it is possible to prevent water leakage from between the connection fitting and the waterproof sheet only by this. Further, since the connection fitting is screwed into the male screw part with at least a sealant adhered to the outer surface of the male screw part, it is possible to prevent water leakage through the inside of the connection fitting, and as a result, complete waterproofing becomes possible.

The present invention also relates to a method for applying a sealant,
Alternatively, the packing is mounted on the external thread portion after the sealing agent is attached and before the connection fitting is screwed. Thus, the seal between the waterproof sheet and the connection fitting is more complete, and the effect of preventing water leakage from this portion can be improved.

The present invention is also characterized in that a finish such as asphalt applied to a waterproof sheet is used as a sealant. Thus, in the waterproof sheet using the finishing agent, a special sealing agent is not required, the cost can be reduced, and the construction is easy.

According to the present invention, when the waterproof sheet is hit from the outer surface side, a tubular or wound tubular cutter having a length longer than the external thread portion is attached to the external thread portion in advance, and the waterproof sheet is pierced. The cutter is removed after the male screw portion is projected from the hole. Although this makes the construction somewhat troublesome, accurate holes can be formed more easily and more reliably than using the male screw portion itself, and the water leakage prevention effect can be further improved.

[0024] The present invention also provides a screw member attached to a wall surface such as an earth retaining wall or a continuous underground wall and having a male screw portion for connecting a connecting metal fitting at a tip end; provided along the wall surface from the outer surface side of the screw member. And a waterproof sheet on which a hole for projecting a male screw portion is formed by beating the position corresponding to the screw member from the outer surface side; and between the wall surface and the waterproof sheet mounted on the male screw portion or on the outer surface side of the waterproof sheet. A donut plate-shaped water-blocking member at least partially formed of non-vulcanized butyl rubber; and a connection fitting screwed into a male screw member to which the water-blocking member is mounted to stop water at the screw member position. A waterproofing device is provided, and a hole-piercing portion having an outer diameter equal to or smaller than the root diameter of the male screw portion and having a blade portion at the outer edge of the distal end is provided at the distal end of the male screw portion of the screw member. I do.

By the way, in order to make a hole in the waterproof sheet,
When the waterproof sheet is beaten from the outer surface side, a hole having a blade portion is provided at the tip of the male screw portion, so that accurate and accurate holes can be easily and surely used without using a tubular or wound tubular cutter. Can be worn. Moreover, since the outer diameter of the perforated portion is set to be equal to or less than the root diameter of the male thread portion, the perforated portion is hit many times with a hammer or the like while the waterproof sheet is perforated. Even if the tip slightly widens to the outer diameter side, there is no problem that the connection fitting cannot be screwed into the male screw portion.

The present invention also provides a tapping screw portion for forcibly screwing a screw member into a mounting hole formed in a wall surface; a male screw portion projecting from the wall surface when the tapping screw portion is screwed into the mounting hole; And a tool hook provided between the screw portion and the male screw portion and used to screw the tapping screw portion into the mounting hole. And by this, unlike the case where the screw member is attached to the wall surface by welding or the screw member is driven into the wall surface using gunpowder and the like, even if the screw member is beaten from an oblique direction, the screw member and the wall of the screw member are not attached. There is no possibility that the connection strength is reduced. In addition, tapping screws can be screwed in by drilling even mounting holes in the wall surface, which makes installation easier and reduces vibration compared to ordinary bolts that require taps to be cut in the mounting holes. There is little risk of loosening when added.

The present invention is further characterized in that the tool holder is formed in a nut shape larger than the male screw portion. This makes it possible to easily attach the screw member to the mounting hole using an electric tool, and when the tapping screw is screwed into the mounting hole, the tool hook functions as a stopper that regulates the amount of screwing. It is possible to obtain a stable connection strength.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1A to 1D show a waterproofing method using a waterproofing device according to a first embodiment of the present invention, in which reference numeral 11 denotes a concrete wall 12 and a metal column such as an H-shaped steel. 13 and a continuous underground wall such as a continuous underground wall.
A screw member 14 for fixing 5 to the wall 11 is attached.

This screw member 14 is shown in FIGS. 1 (a) to 1 (d).
As shown in FIGS. 2A and 2B, a tapping screw portion 17 forcibly screwed into a mounting hole 16 formed in the wall surface of the wall body 11, and the tapping screw portion 17 is screwed into the mounting hole 16. Male thread 18 projecting from the wall
And a tool hook 19 provided between the tapping screw portion 17 and the male screw portion 18 and having a hexagonal nut shape larger than the male screw portion 18. The tool hook 19 is attached to an electric tool. A hexagonal box wrench 20 is attached, and is used when the tapping screw 17 is screwed into the mounting hole 16. When the screw member 14 is attached to the wall 11, a connection fitting 15 is threadably connected to the male screw portion 18.

The wall 11 to which the screw member 14 is attached
As shown in FIG. 1A, a waterproof sheet 21 is provided on the wall surface of the screw member 14 from the outer surface side of the screw member 14. 1 can be prevented from leaking to the left side of the waterproof sheet 21 in FIG.

The waterproof sheet 21 is shown in FIGS.
As shown in (d), for example, the thin rubber layer 2 on the wall 11 side
1a and a bentonite layer 21b disposed on the outer surface side of the rubber layer 21. The waterproof sheet 21 is formed by hitting a position corresponding to the screw member 14 from the outer surface side with a hammer or the like. , Hole 2 corresponding to male screw portion 18
2 are formed, and the male screw portion 18 projects outward through the hole 22.

As shown in FIGS. 1 (c) and 1 (d), the connecting fitting 15 is screwed into the male screw portion 18 protruding outward through the hole 22 of the waterproof sheet 21 with the water stopping member 23 attached. When the connection fitting 15 is tightened, water is stopped at the screw member 14 by the water stopping member 23.

That is, the water stopping member 23 is provided as shown in FIG.
As shown in FIGS. 3 (c) and 3 (d) and FIG. 3, a non-vulcanized butyl rubber water-stopping material 24 having elasticity and adhesiveness and located on the side of the waterproof sheet 21 is reinforced. The reinforcing member 25 made of a soft elastic material such as rubber is formed into a donut disk shape as a whole, and is screwed into the male screw portion 18 with the water stopping member 23 attached to the male screw portion 18. By tightening the connection fitting 15, the waterproof material 24
Are entangled with the male screw portion 18 so that water can be stopped at the position of the screw member 14. This will be described later in detail.

Next, the operation of the present embodiment will be described. When waterproofing the wall 11, first, a mounting hole 16 is drilled at a position of the metal column 13 of the wall 11 using an electric drill or the like, and a tapping screw portion 17 of a screw member 14 is forcibly inserted into the mounting hole 16. Screw it in. This allows
As shown in FIG. 1A, the screw member 14 is firmly attached to the wall body 11 with the male screw portion 18 protruding from the wall surface.

Next, as shown in FIG. 1A, a waterproof sheet 21 is provided along the wall surface of the wall 11 from the outer surface side of the screw member 14 and corresponds to the screw member 14 of the waterproof sheet 21. Hit the position from outside using a hammer or the like. Then, a hole 22 corresponding to the male screw portion 18 is formed in the waterproof sheet 21, and as shown in FIG.
2, the male screw portion 18 projects to the outer surface side.

In this manner, the male screw portion 18 is
Is projected to the outer surface side, as shown in FIG. 1C, the waterproofing member 23 is attached to the protruding male screw portion 18 in a state where the waterproofing material 24 faces the waterproof sheet 21, and thereafter, As shown in FIG. 1 (d), the connecting fitting 15 is screwed into the male screw portion 18, and the connecting fitting 15 is tightened by using an electric tool (not shown).

By the way, when the connection fitting 15 is tightened, at the beginning of the tightening, the water stopping member 23 also rotates around the male screw portion 18 together with the connection fitting 15. Then, the water-stopping material 24 made of non-vulcanized butyl rubber is entangled with the outer surface of the external thread portion 18, and the space between the water-stopping member 23 and the external thread portion 18 is hermetically sealed by the water-stopping material 24.

When the connection fitting 15 is further tightened, the water-stopping material 24 comes into close contact with the waterproof sheet 21 so that the water-stopping member 23 does not rotate, and is pressed against the waterproof sheet 21 by the connection fitting 15 in this state. Then, as shown in FIG. 4, a part of the water stopping material 24 is sent between the hole 22 of the waterproof sheet 21 and the male screw portion 18, and this portion is sealed, and another part of the water stopping material 24 is sealed. A part is fed between the connection fitting 15 and the male screw part 18 to seal this part. For this reason, the waterproof sheet 21 of the male screw portion 18
The penetrating portion is completely sealed by the water stopping material 24, and the water stopping at the screw member 14 is completely performed.

Since the waterproof sheet 21 is beaten from the outer side to punch the hole 22, the hole 22 can be easily drilled and unnecessary tearing of the waterproof sheet 21 occurs. Without this, only the hole 22 corresponding to the male screw portion 18 can be accurately drilled. For this reason, it is possible to completely prevent the leakage of the groundwater due to the tear.

Further, since the connection fitting 15 is screwed into the male screw portion 18 with the water-stopping member 23 attached, the water-stopping material 24 is attached to the male screw portion 18 by tightening the connection fitting 15. Entangled, the space between the water blocking member 23 and the male screw portion 18 and the space between the hole 22 of the waterproof sheet 21 and the male screw portion 18 are sealed. Therefore, the water stop at the position of the screw member 14 is completely performed, and it is possible to completely prevent the water leakage from the portion of the screw member 14 penetrating the waterproof sheet 21.

Further, since the male screw portion 18 has a short projecting dimension from the wall surface of the wall 11, there is almost no deviation between the position of the hole 22 formed in the waterproof sheet 21 and the position of the male screw portion 18, and the male screw portion 18 extends along the wall surface. There is no risk that the waterproof sheet 21 to be disposed will be loosened, and there will be no inconvenience that the waterproofing work is incomplete due to the loosening and the sufficient waterproof effect cannot be obtained.

FIGS. 5 to 7 show a second embodiment of the present invention, in which a water stopping member 33 is used instead of the water stopping member 23 in the first embodiment. 3
3 is attached to the male screw portion 18 in advance, and the waterproof sheet 2
1, a hole 22 can be formed.

That is, the water stopping member 33 is provided as shown in FIG.
(A) to (d), as shown in FIGS. 6 and 7, a reinforcing member 35 made of a soft elastic material such as rubber, and a non-vulcanized butyl rubber water stop disposed on both sides of the reinforcing member 35, respectively. Lumber 3
4A and 34B, the entirety of which is formed in the shape of a donut disk. The waterproofing member 33 is previously mounted on the male screw portion 18 before the waterproof sheet 21 is disposed along the wall surface of the wall body 11. It has become so. In other respects, the configuration is the same as that of the first embodiment.

Next, the operation of the present embodiment will be described. When waterproofing the wall 11, first, a mounting hole 16 is drilled at the position of the metal column 13 of the wall 11, and the tapping screw 17 of the screw member 14 is forcibly screwed into the mounting hole 16, and the male screw is formed. The screw member 14 is attached to the wall body 11 with 18 protruding from the wall surface. Then, as shown in FIG. 5A, the water stopping member 3 is
3 is installed.

Next, as shown in FIG. 5B, a waterproof sheet 21 is provided along the wall surface of the wall 11 from the outer surface side of the screw member 14 and corresponds to the screw member 14 of the waterproof sheet 21. Hit the position from outside using a hammer or the like. Then, a hole 22 corresponding to the male screw portion 18 is formed in the waterproof sheet 21, and as shown in FIG.
2, the male screw portion 18 projects to the outer surface side. Therefore,
As shown in FIG. 5D, the connection fitting 15 is screwed onto the protruding male screw portion 18 and tightened with a predetermined force.

When the connecting fitting 15 is tightened, the water stopping member 33 is compressed between the tool holder 19 and the waterproof sheet 21, and the water stopping members 34A and 34B are closed as shown in FIG. Between the member 33 and the male screw portion 18, the waterproof sheet 2
1 between the hole 22 and the external thread portion 18 and the connection fitting 15
And between the male screw portion 18 to seal this portion. For this reason, the waterproof sheet 2 of the male screw portion 18
The one penetrating portion is completely sealed by the water stopping materials 34A and 34B, and the water stopping at the screw member 14 is completely performed.

However, in the case of the water stopping member 33, unlike the water stopping member 23 according to the first embodiment, even when the connecting fitting 15 is tightened, the water stopping member 33 is connected to the male screw portion 18 together with the connecting fitting 15. It does not rotate around and does not have the effect of entanglement of the water-stopping materials 34A and 34B with the male screw portion 18. However, non-vulcanized butyl rubber is extremely soft and is sent into the gap even if it is compressed, so that the water-stopping effect is obtained. Member 23
The same waterproof effect can be obtained. Moreover, the installation is easier if the water blocking member 33 is mounted on the male screw portion 18 in advance.

Note that in the second embodiment,
Although the case where the water stopping member 33 is used has been described, if the water stopping material 24 is attached to the waterproof sheet 21 side,
Even if the water stopping member 23 is used, substantially the same effect can be expected.

FIGS. 8 (a) to 8 (d) show a third embodiment of the present invention, which is applied to a waterproof sheet 41 having a surface to which a finish 40 is applied. In this embodiment, the water stopping member 23 can be omitted.

That is, on the surface of the waterproof sheet 41, after the male screw portion 18 is made to protrude to the outer surface side through the hole 22, the finishing agent 4 such as asphalt including the outer surface of the male screw portion 18 is included.
0 is applied, and the connection fitting 15 is screwed into the external thread portion 18 after the application of the finishing agent 40. Then, the finishing agent 40 is added to the hole 22.
Of the screw member 14 by functioning as a sealant between the screw member 14 and the male screw portion 18 and between the connecting fitting 15 and the male screw portion 18.
It is designed to stop the water at the location. In addition, a flange portion 15a is provided at a distal end portion of the connection fitting 15 in order to increase an area of contact with the waterproof sheet 41. In other respects, the configuration is the same as that of the first embodiment.

Next, the operation of the present embodiment will be described. When waterproofing the wall 11, first, a mounting hole 16 is drilled at the position of the metal column 13 of the wall 11, and the tapping screw 17 of the screw member 14 is forcibly screwed into the mounting hole 16, and the male screw is formed. The screw member 14 is attached to the wall body 11 with 18 protruding from the wall surface.

Next, as shown in FIG. 8A, a waterproof sheet 41 is provided along the wall surface of the wall 11 from the outer surface side of the screw member 14 and corresponds to the screw member 14 of the waterproof sheet 41. Hit the position from outside using a hammer or the like. Then, a hole 22 corresponding to the male screw portion 18 is formed in the waterproof sheet 41, and as shown in FIG.
2, the male screw portion 18 projects to the outer surface side.

Next, a finishing agent 40 such as asphalt is applied to the surface of the waterproof sheet 41 including the outer surface of the male screw portion 18, and then the connection fitting 15 is screwed onto the male screw portion 18 and tightened.

When the finishing agent 40 is applied to the surface of the waterproof sheet 41, the finishing agent 40 flows between the hole 22 of the waterproof sheet 41 and the male screw portion 18 to seal this portion, and to seal the male screw portion. When the connecting metal 15 is screwed onto the outer surface of the connecting metal 18, the connecting metal 15 and the male screw 1
8 to seal this part. Thereby, the water stop at the screw member 14 is completely performed.

By making the finishing agent 40 function as a sealing agent for the screw member 14, the water stopping member 2
Without using 3, 33, it is possible to completely prevent water leakage from the portion of the screw member 14 that penetrates the waterproof sheet 41.

Incidentally, in the third embodiment,
Although the case where the finishing agent 40 of the waterproof sheet 41 is used as a sealing agent for the screw member 14 has been described, a dedicated sealing agent different from the finishing agent 40 may be used. In this case, the present invention can be applied to the waterproof sheet 21 that does not use the finishing agent 40.

Further, in the third embodiment,
The flange 15a of the connection fitting 15 is directly attached to the waterproof sheet 41.
Although the case where the sealing member is brought into close contact has been described, a packing 42 made of rubber or the like may be interposed between the flange portion 15a and the waterproof sheet 41 as shown in FIG. Thereby, water leakage from between the flange portion 15a and the waterproof sheet 41 can be more completely prevented. The packing 42 may be attached to the male thread 18 before applying the finishing agent 40, or may be attached to the male thread 18 after applying the finishing agent 40. The same applies to the case where a dedicated sealant is used.

FIGS. 10A to 10D show a fourth embodiment of the present invention, in which holes 22 are formed in the waterproof sheet 21 using a cutter 50.

That is, as shown in FIG. 10 (a), the male screw portion 18 of the screw member 14 has a tubular or wound tubular shape and is slightly longer than the male screw portion 18 before the waterproof sheet 21 is provided. A cutter 50 having dimensions is mounted.
By hitting the waterproof sheet 21 from the outer surface side with the 0 attached to the male screw portion 18, a hole 22 corresponding to the cutter 50 is formed in the waterproof sheet 21. In other respects, the configuration is the same as that of the first embodiment.

Next, the operation of the present embodiment will be described. In waterproofing the wall 11, first, a mounting hole 16 is drilled at the position of the metal column 13 of the wall 11, and the tapping screw portion 17 of the screw member 14 is forcibly screwed into the mounting hole 16. As a result, as shown in FIG. 10A, the wall body 1 is kept in a state where the male screw portion 18 protrudes from the wall surface.
1, a screw member 14 is attached. Then, the cutter 50 is attached to the male screw portion 18 of the screw member 14.

Next, as shown in FIG. 10A, the waterproof sheet 21 is provided along the wall surface of the wall 11 from the outer surface side of the screw member 14 and the cutter 50, and the screw member 14 of the waterproof sheet 21 is The corresponding position is hit from the outside using a hammer or the like. Then, a hole 22 corresponding to the cutter 50 is formed in the waterproof sheet 21, and the male screw portion 18 and the cutter 50 project outward through the hole 22 as shown in FIG. Then, the cutter 50 attached to the male screw portion 18 is removed.

Next, as shown in FIG. 10C, the water-stopping member 2 is provided on the male thread portion 18 protruding to the outer surface side of the waterproof sheet 21 with the water-stopping material 24 facing the waterproof sheet 21.
Then, as shown in FIG. 10D, the connection fitting 15 is screwed into the male screw portion 18 and tightened with a predetermined force.

Since the cutter 50 is used, the construction is somewhat troublesome. However, when the hole 22 is formed in the waterproof sheet 21, the hole 22 can be more accurately formed with a smaller force.
Can be pierced, and the risk of unnecessary tearing of the waterproof sheet 21 can be further reduced. Further, even when the waterproof sheet 21 is unnecessarily beaten, there is no problem that the thread of the male screw portion 18 is crushed and the connection fitting 15 cannot be screwed.

Incidentally, in the fourth embodiment,
Not only the male thread 18 of the screw member 14 but also the tool hook 1
Although the case where 9 is also inserted into the hole 22 of the waterproof sheet 21 has been described, by changing the dimensional relationship between the cutter 50 and the tool holder 19, only the male screw portion 18 can be inserted into the hole 22. Also, the cutter 50 is attached to the tool holder 1.
9 can also be arranged on the outer peripheral side. Also, the cutter 50
Can be applied not only to the first embodiment but also to the second or third embodiment, and the same effect can be obtained.

FIGS. 11A and 11B show a fifth embodiment of the present invention, wherein a screw member 64 is used in place of the screw member 14 in the first embodiment. Things.

That is, this screw member 64 is
(A) and (b), a tapping screw 67 corresponding to the tapping screw 17 of the screw member 14,
Male screw portion 68 corresponding to male screw portion 18 of screw member 14
And a tool hook 69 corresponding to the tool hook 19 of the screw member 14. A hole having the same function as that of the cutter 50 in the fourth embodiment is provided at the tip of the male screw 68. The piercing portion 70 is provided integrally.

The hole-piercing portion 70 is formed as shown in FIG.
As shown in (b), it is formed in the shape of a round bar having an outer diameter equal to or less than the root diameter of the male screw portion 68,
A blade 70a is provided. When the waterproof sheet (not shown) is hit from the outside, the holes 22 (see FIG. 1) can be easily and accurately formed by the blade portion 70a. In other respects, the configuration is the same as that of the first embodiment.
The operation is the same.

Since the screw member 64 has the perforated portion 70, the same effect as that obtained by using the cutter 50 can be obtained without using the cutter 50 in the fourth embodiment. It is possible and construction is easy. Further, even if the hole-piercing portion 70 is beaten more than necessary and the blade portion 70a is deformed in diameter, there is no problem that the connection fitting 15 cannot be screwed into the male screw portion 68.

FIGS. 12A to 12C show a sixth embodiment of the present invention. In place of the screw member 14 in the first embodiment, screw members 114, 214 and 31 are used.
4, respectively.

That is, the screw member 1 shown in FIG.
14 has a structure in which a bolt 117 is used in place of the tapping screw portion 17 of the screw member 14 in the first embodiment.
After a tap is cut in the mounting hole 16 shown in (a) to (d), it is screwed into the mounting hole 16.

The screw member 214 shown in FIG.
Has a structure in which a welding seat 219 is provided on the male screw portion 18 of the screw member 14 in the first embodiment.
The welding seat 219 is fixed to the surface of the metal column 13 of the wall 11 shown in FIGS. 1A to 1D by welding, for example.

Further, the screw member 31 shown in FIG.
4 is a driving portion 31 provided on the male screw portion 18 of the screw member 14 in the first embodiment via a flange portion 319.
7 is provided, and the driving portion 317 is
For example, the metal column 1 of the wall body 11 shown in FIGS.
3 is to be driven using gunpowder. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

In the case of the screw member 114, however, it is necessary to cut a tap in the mounting hole 16, which makes the installation somewhat troublesome. However, the manufacture of the screw member 114 itself is easy and the same as the screw member 14 is used. The connection strength with the wall 11 can be obtained.

The screw members 214 and 314 are not easy to construct as compared with the screw member 14, and the wall 1
1 may be dangerous during the mounting work, and if the screw members 214 and 314 are beaten diagonally,
Although there is a possibility that the connection strength with the wall body 11 may be reduced, if the construction is performed with attention to these points, the same effect as when the screw member 14 is used can be obtained.

[0075]

As described above, according to the present invention, by hitting the position corresponding to the screw member of the waterproof sheet from the outer surface side, a hole is formed in the waterproof sheet so that the male screw portion is projected. Unlike using a knife,
Only the holes necessary for the penetration of the screw members can be easily and reliably drilled without causing unnecessary tearing of the waterproof sheet, completely preventing water leakage accompanying unnecessary tearing of the waterproof sheet. Can be prevented.

Also, since the length of the male screw portion is short, unlike the case where a hole is formed in the waterproof sheet after the connecting fitting is attached to the male screw portion, the position of the hole of the waterproof sheet may be shifted from the position of the screw member. There is no slack in the waterproof sheet distributed along the wall surface, and water leakage due to slack can be completely prevented.

The connection fitting is screwed into the male screw portion with the water blocking member attached to the male screw portion, so that the center hole of the water blocking member and the male screw are formed by the non-vulcanized butyl rubber constituting the water blocking member. Parts, and between the hole of the waterproof sheet and the male screw part, etc., are sealed, so that water can be completely stopped at the screw member position, and water leakage from the waterproof sheet penetrating portion of the screw member can be completely prevented. .

According to the present invention, since the waterproofing member is attached to the male screw portion before the waterproof sheet is perforated, water leakage from the waterproof sheet penetrating portion of the screw member is completely prevented. And the construction can be made easier.

Further, according to the present invention, since a waterproof sheet is formed with a hole and a male screw portion is protruded, a sealant is attached to at least the outer surface of the male screw portion to screw the connection fitting into the waterproof sheet. Without this, it is possible to prevent water leakage from the waterproof sheet penetrating portion of the screw member.

The present invention also relates to a method for applying a sealant,
Or, after attaching the sealant and before screwing the connection fitting, the packing is attached to the male thread part, so the sealing between the waterproof sheet and the connection fitting is more complete, preventing water leakage from this part The effect can be further improved.

In the present invention, since a finish such as asphalt applied to the waterproof sheet is used as the sealant, the waterproof sheet using the finish does not require a special sealant, and is cost-effective. It can be downed and the construction is easy.

According to the present invention, since the tubular or wound tubular cutter is previously mounted on the male screw portion so that a hole can be formed in the waterproof sheet, the construction is somewhat troublesome. A hole can be formed more easily and surely than using itself, and the effect of preventing water leakage can be further improved.

According to the present invention, a hole-piercing portion having an outer diameter equal to or smaller than the root diameter of the male screw portion and having a blade portion at the outer edge of the tip is provided at the distal end of the male screw portion of the screw member, so that it is easy and reliable. In addition, it is possible to accurately drill holes in the waterproof sheet, and even if the blade portion is excessively hit and the blade portion is expanded in diameter, there is no problem that the connection fitting cannot be screwed into the male screw portion.

According to the present invention, since the screw member is constituted by the tapping screw portion, the male screw portion, and the tool hook portion, when the waterproof sheet is formed with holes, the screw member is obliquely inserted. Even if it is hit, there is no possibility that the connection strength of the screw member to the wall body is reduced, and the work when attaching the screw member to the wall body is easy, and there is no possibility that the screw member will be loosened even if vibration is applied.

Further, in the present invention, since the tool hook portion is formed in a nut shape larger than the male screw portion,
The screw member can be mounted in the mounting hole using an electric tool, and the tool holder functions as a stopper that regulates the amount of screwing of the tapping screw portion, so that a stable connection strength can always be obtained.

[Brief description of the drawings]

FIGS. 1A and 1B are explanatory views showing a method of waterproofing a wall surface using a waterproofing device according to a first embodiment of the present invention in accordance with procedures.

2A is a detailed view of the screw member of FIG. 1, and FIG. 2B is a left side view of FIG.

FIG. 3 is a detailed sectional view of the water stopping member of FIG. 1;

FIG. 4 is an explanatory diagram showing an effect of a water stopping member in the waterproofing method of FIG.

FIGS. 5A to 5D are explanatory views sequentially showing a waterproofing method according to a second embodiment of the present invention in accordance with procedures.

FIG. 6 is a detailed sectional view of the water stopping member of FIG. 5;

FIG. 7 is an explanatory diagram showing an effect of a water stopping member in the waterproofing method of FIG.

FIGS. 8A to 8D are explanatory views sequentially showing a waterproofing method according to a third embodiment of the present invention according to a procedure.

FIG. 9 is an explanatory diagram showing a modification of FIG. 8;

FIGS. 10A to 10D are explanatory diagrams sequentially showing a waterproofing method according to a fourth embodiment of the present invention according to a procedure.

11A is a detailed view of a screw member according to a fifth embodiment of the present invention, and FIG. 11B is a left side view of FIG.

FIGS. 12A to 12C are detailed views of a screw member according to a sixth embodiment of the present invention.

FIG. 13 is an explanatory diagram showing a relationship between a concrete wall constructed using a concrete form holding device and water leakage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Wall body 12 Concrete wall 13 Metal pillar 14, 64, 114, 214, 314 Screw member 15 Connecting bracket 15a, 319 Flange part 16 Mounting hole 17, 67 Tapping screw part 18, 68 Male screw part 19, 69 Tool hook part 21, 41 Waterproof sheet 22 Hole 23,33 Waterproof member 24,34A, 34B Waterproof material 25,35 Reinforcement material 40 Finishing agent 42 Packing 50 Cutter 70 Hole punching part 70a Blade part 117 Bolt part 219 Welding seat 317 Driving part

Claims (9)

[Claims] 1. A screw member having a male thread portion for connecting a connecting bracket is attached to a wall surface such as an earth retaining wall or a continuous underground wall, and a waterproof sheet is provided along the wall surface from the outer surface side, and then waterproof. By hitting the position corresponding to the screw member of the sheet from the outer surface side, a hole is made in the waterproof sheet to make the male screw portion project, and then at least a part of the male screw portion projecting from the hole is made of non-vulcanized butyl rubber. A water-proofing method for a wall surface, comprising: mounting a donut-shaped water-stop member formed by the method (1), and then screwing a connection fitting into a male screw portion to stop water at the screw member position. 2. A screw member having a male screw portion for connecting a connecting metal fitting is attached to a wall surface such as an earth retaining wall or a continuous underground wall, and at least a part of the male screw portion is formed of non-vulcanized butyl rubber. By attaching a donut plate-shaped water blocking member, and then arranging a waterproof sheet along the wall surface from the outer surface side of the screw member, and then hitting the position corresponding to the screw member of the waterproof sheet from the outer surface side, A method for waterproofing a wall surface, comprising making a hole in a waterproof sheet to project the male screw portion, and then screwing a connection fitting into the male screw portion projecting from the hole to stop water at a screw member position. 3. A screw member having a male screw portion for connecting a connecting metal fitting is attached to a wall surface such as an earth retaining wall or a continuous underground wall, and a waterproof sheet is provided along the wall surface from the outer surface side, and then waterproof. By hitting a position corresponding to the screw member of the sheet from the outer surface side, a hole is made in the waterproof sheet to project the male screw portion, and then a sealant is attached to at least the outer surface of the male screw portion, and a connection fitting is attached to the male screw portion. A waterproofing method for a wall surface, wherein water is stopped at a screw member position by screwing a screw. 4. The method for waterproofing a wall surface according to claim 3, wherein a packing is attached to the external thread portion before attaching the sealing agent or after attaching the sealing agent and before screwing the connection fitting. 5. The method for waterproofing a wall surface according to claim 3, wherein the sealing agent is a finishing agent such as asphalt applied to the waterproof sheet. 6. When the waterproof sheet is hit from the outer side,
A tubular or wound tubular cutter having a length equal to or longer than the male screw portion is mounted on the male screw portion in advance, and after the male screw portion protrudes from a hole formed in the waterproof sheet, the cutter is removed. The method for waterproofing a wall surface according to claim 1, 2, 3, 4, or 5. 7. A screw member attached to a wall surface such as an earth retaining wall or a continuous underground wall, and having a male screw portion for connecting a connecting metal fitting at a tip thereof; a screw member provided along the wall surface from the outer surface side of the screw member; A waterproof sheet having a hole for projecting a male screw portion by punching a position corresponding to the member from the outer surface side; and being mounted on the male screw portion and located between the wall surface and the waterproof sheet or on the outer surface side of the waterproof sheet, A donut plate-shaped water-stopping member partially formed of non-vulcanized butyl rubber; and a connection fitting screwed into a male screw member to which the water-stopping member is mounted to stop water at the screw member position; The waterproofing device for a wall surface according to claim 1, wherein the screw member has, at the tip of the male screw portion, a hole-piercing portion having an outer diameter equal to or less than the root diameter of the male screw portion and having a blade portion at the outer edge of the tip. 8. A tapping screw portion forcibly screwed into a mounting hole formed in a wall surface; a male screw portion projecting from the wall surface when the tapping screw portion is screwed into the mounting hole; and a tapping screw portion. The wall waterproofing device according to claim 7, further comprising: a tool hook portion provided between the male screw portion and the screw portion for screwing the tapping screw portion into the mounting hole. 9. The waterproof device for a wall surface according to claim 8, wherein the tool hook has a nut shape larger than the male screw portion.