JPS586840B2 - flexible water stop plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flexible stopper that is inserted into a joint part of a tunnel or underpass and used to leave a desired void flow path necessary for water to flow. It concerns the water board.

When building tunnels and underground passages, in areas where there is a lot of spring water or natural water leakage, create recessed joints in the ceiling and walls of the tunnel or underground passage, and leave a gap at the back of this joint and use the surface side as a pond. The joints were filled flat and the leakage water was channeled into the gap and discharged into the gutter installed at the bottom of the tunnel, underpass, etc.

Conventionally, in order to create a gap in a part of the joint, a piece of wood was inserted into the joint, leaving a gap at the back, but there was a limit to the length of the piece of wood that could be inserted, and the joint was curved. If the wood has a shape, it is almost impossible to obtain a piece of wood with a shape that is suitable for the shape, so it is necessary to have many joints, and it is difficult to create uniform voids in the deep part of the joint. Furthermore, wood chips, by their very nature, have disadvantages in terms of water resistance and durability.

The present invention solves the above-mentioned drawbacks, makes it easy to provide a gap of a desired size in a joint part, and is a flexible water stop plate that can be easily inserted into a curved joint part and is highly water resistant. was developed.

The present invention will be explained in detail with reference to the drawings. The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of a flexible water stop plate, and FIG. FIG. 3 is a cross-sectional view illustrating a state of use with a water stop plate inserted.

In the figure, 1 is a flexible water stop plate (hereinafter simply abbreviated as water stop plate), which is made of a material that has both elasticity and water resistance, such as a flexible material such as a rubber material or a synthetic resin material. Alternatively, the water stop plate 1 is made of a flexible material such as a mixture of rubber material and synthetic resin material, and the water stop plate 1 has an endless band shape in the length direction.

As shown in Fig. 1, the water stop plate 1 has surfaces 3 and 4 that are inclined at an angle of 45° from the left and right side ends toward the center of the thickness of the water stop plate material, and from both the front and back surfaces 5 and 6. A side edge ridge line 2 is formed at the part where the inclined planes intersect at right angles,
The front surface 5, back surface 6, side edge slopes 3, 4, and side edge ridgeline 2 of the water stop plate 1 are all finished smoothly.

The surfaces are inclined at an angle of 45° from both the front and back sides toward the center of the plate material thickness at a position away from the side edges by the length, and the side edge slopes 3 and 4 from both the front and back sides are at right angles. The reason why the intersecting side edge ridge lines 2 are formed is as shown in FIG. This is to make it easy for the side edge inclined surface 4 to come into close contact with the corner portion 8' and the side edge corner portion 9' of the joint portion 7.

In other words, since the side edge slopes on both the front and back sides intersect at right angles to the recessed joint where the corners are cut out at right angles, the plan is to increase the contact area between the water stop plate and the joint, thereby increasing the adhesion effect. This is what I did.

In this way, the back corner part 8' and the side corner part 9' of the joint part 7
Since the structure allows the inclined side surfaces 3 and 4 of the water stop plate 1 to come into close contact with each other, it is easy to insert the water stop plate 10 into the joint part 7 and make a close contact between the joint part I, the back surface 8, and the water stop plate. A gap 10 of a desired size can be provided between the surface 5 of the substrate 1 and the surface 5 of the substrate 1.

The dimensions of the water stop plate 10 are appropriately selected depending on the dimensions of the recessed joint provided at the site, but regarding the thickness, the side edge slopes 3 and 4 are the same as the inner corner portion 8' and the side corner portion of the joint portion 7. 9' is required, and considering the size of the joint and the water resistance of the water stop plate 1, the thickness C is required.
needs to be 4 mm or more, and when workability is also taken into account, it needs to be 4 to 15 mr/L.

In addition, the width of the water stop plate is determined so that the side edge inclined surfaces 3 and 4 are in close contact with the inner corner portion 8' and the side corner portion 9' of the joint portion 1, and to create a gap 10 of a desired size. It needs to be wider than 70mm width.

If the width a of the water stop plate is not so wide compared to the width b of the joint part 10, the side edge slopes 3 and 4 are at the inner corner part 8 of the joint part 7.
' and side corner portions q, and the gap 10 also becomes smaller, resulting in problems with drainage.

Also, if the width a of the water stop plate is too wide than the width b of the joint 70, if the joint is provided in a straight line, the joint 1
It is easy to insert the water stop plate 1 into the inside of the joint, but if the shape of the joint is curved like a tunnel, the inserted water stop plate 1 may become stuck at the curved part of the joint. As a result, darts are likely to occur, and it becomes difficult for the side edge slopes 3 and 4 to come into close contact with the rear corner portion 8' and the side corner portion q, and it is extremely difficult to provide the void 10 uniformly, making it difficult to install a water stop plate. Since the workability of inserting the seal into the joint is reduced, a suitable range between the width a of the water stop plate and the width b of the joint is experimentally selected in consideration of various points.

In addition, since the length of the water stop plate 1 is in the form of an endless strip in the longitudinal direction, it is extremely convenient because it can be cut on-site to a size that can completely cover one joint such as a tunnel or an underpass.

Any material can be used for the water stop plate 1 of the present invention as long as it is flexible and water resistant, but in particular, any material that is water resistant and easy to insert into the joint can be used at the corner of the joint. The material must have sufficient hardness, flexibility, and elasticity to be easily handled and adhered to, and to which the sealant can be completely adhered, and the length can be adjusted to the desired length of the joint without a seam. Since it must be a material that can be supplied, rubber materials, synthetic resin materials, or a mixture thereof are most suitable as materials for the water stop plate of the present invention.

As mentioned above, the water stop plate of the present invention is highly water resistant and flexible, has good workability, is easy to handle, can be freely selected in length, and has voids of a predetermined size inside the joint. It has a very useful feature in that it can be uniformly provided.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a perspective view of a flexible water stop plate, and Fig. 2 is an explanation of the usage state in which the flexible water stop plate is inserted into a joint part of a tunnel, etc. FIG. In the figure, 1: Flexible water stop plate, 2: Side edge ridgeline, 3: Side edge slope, 4: Side edge slope, 5: Front surface, 6: Back surface, 7: Joint area, 8: Back of joint area. Surface, ``Second corner corner part, 9: Joint side surface,
9': Side corner portion, 10: Gap, a: Width of water stop plate, b Width of second joint, C: Thickness of water stop plate.

Claims (1)

[Claims] 1 A strip-like length made of a water-resistant and flexible material is provided with surfaces inclined at an angle of 45° from both the front and back sides toward the center of the thickness of the board toward the side edges, and both the front and back sides are A band-shaped flexible water stop plate in which a ridge line is formed at the part where the inclined surfaces intersect at right angles, the thickness of the plate material is 4 to 15 mm, and all surfaces and ridge lines are finished smoothly.