KR100720683B1 - A waterproof unit for underground cave - Google Patents

Abstract

The present invention relates to an underground joint joint leakage prevention facility, and to effectively block the penetration of water toward the concrete box constituting the underground cavity, and to prevent deformation by earth pressure.

Basement joint joint leakage preventing facilities according to the present invention, expansion joint formed on the joint side of the concrete box of the underground cavity and protruding on the side facing the contact portion 11 and the expansion portion formed in the seating portion 12 outside the junction Pipe portion 10; Filler 20 is interposed between the junction of the expansion pipe portion; An index ring (30) of elastic material coupled to the outside of the filler; A first foam member 40 seated on the seating portion of the expansion pipe; An index film 50 covering the first foam; A second foam member 60 coupled to the outer side of the water film; A waterproof sheet 70 covering the second foam and the expansion pipe; The cover plate 80 covers the waterproof sheet and prevents imputation of earth pressure.

Underground cavity, seams, leaks, filler, exponent, foam, cover plate

Description

A waterproof unit for underground cave

1 is a block diagram of an underground cavity according to the prior art.

Figure 2 is an exemplary view of the underground joint ball joint leak prevention facilities according to the prior art.

Figure 3 is an exploded perspective view of the basement joint joint leak prevention facilities according to the present invention.

Figure 4 is a cross-sectional view of the basement joint joint leak prevention facilities according to the present invention.

Figure 5 is a perspective view of the excerpt of the underground underground joint installed underground joint joint leakage prevention facility according to the present invention.

<Description of Signs for Main Parts of Drawings>

1: underground cavity, 1-1,1-2: concrete box

10: expansion part, 11: connection part

12: seating portion, 20: filler

30: index ring, 40, 60: foam

50: water film, 70: waterproof sheet

80: cover plate,

The present invention relates to an underground joint joint leakage prevention facility, and more specifically, a plurality of concrete boxes are connected along the length direction, and underground water does not penetrate into the underground cavity, in which power lines and communication lines are wired inside. The present invention relates to an underground joint joint leakage prevention facility, which effectively prevents deformation and prevents deformation due to earth pressure.

In general, the underground common premises in the multi-family housing complex, a plurality of concrete boxes are connected to the power line and communication lines are installed inside, or the plumbing line is installed.

Because underground cavity is connected to the concrete box and is buried in the ground, the underground water can penetrate through the joint of the concrete box. To prevent this, a leak prevention facility is installed at the joint of the underground cavity to prevent leakage. do.

As shown in FIG. 1, the underground cavity 1 is provided with a plurality of concrete boxes 1-1, 1-2,... Therefore, since water can penetrate through the joints of the concrete boxes 1-1, 1-2, ..., a leakage preventing facility is provided at the joints of the concrete boxes 1-1, 1-2, ....

The underground cavity opening leakage prevention facility according to the prior art is, for example, as shown in Figure 2, the filling material (2) interposed in the joints of the concrete boxes (1-1,1-2, ...) and the index plate (3) covering the joints Is done. Styrofoam is mainly used for the filling material 2, and the index plate 3 is a flat plate shape which covers the joints of the concrete boxes 1-1, 1-2,...

However, according to the conventional underground cavity leak prevention facility, the water discharge plate 3 is simply a thin flat plate, and the filler material 2 is formed in the form of a strip between the concrete boxes 1-1, 1-2,... Because of the earth pressure, the water plate 3 is broken or cracks are generated, so that water can easily penetrate, and the filling material 2 is easily deformed and damaged due to the friction of the concrete boxes 1-1, 1-2,. There is a problem that the water passing through the index plate (3) penetrates into the concrete boxes (1-1,1-2, ...) and loses its function as an underground cavity leakage preventing facility.

The present invention is to solve the above-mentioned problems, it is an object of the present invention to provide an underground joint joint leakage prevention facility that can be blocked and absorbed in a multi-stage water ingress toward the joint of the concrete box.

In addition, another object of the present invention is to be able to prevent the deformation of the leak prevention facility by earth pressure.

Underground joint ball joint leakage preventing facilities according to the present invention for achieving the above object, the inner part of the joint of the concrete box, the filler, the water-resistant member, water / shock absorbing foam, the water-proof member, water / shock absorbing foam is laminated, The outer portion of the concrete box is characterized in that the waterproof sheet and the shock absorbing cover plate is covered.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in Figures 3 to 5, the underground joint ball joint leak prevention facilities according to the present invention, between the expansion portion 10 of the concrete boxes (1-1,1-2, ...) having a hollow therein Filler 20, the index ring 30, the first foam 40, the water film 50, the second foam 60, the waterproof sheet 70 and the cover plate 80 are sequentially stacked from the inner diameter side to the outer diameter side ), And each component will be described in detail below.

First, the concrete boxes 1-1, 1-2, ... are boxes in the form of a rectangular cross section (but not limited to a rectangle) having hollow portions at both left and right sides thereof, so that the joints on both sides thereof are outward than other sections. Expansion part 10 (expansion part 11 is formed around the front of the concrete boxes 1-1, 1-2, ...) to protrude to facilitate connection through the enlarged cross-sectional area and to prevent water from penetrating into the joint part. It is formed), and has a joining portion 11 and a seating portion 12 formed on the side surface of the expansion pipe (joint side of the concrete boxes (1-1,1-2, ...)). That is, the joining portion 11 protrudes from the inner diameter side to the outer diameter side toward the lateral direction only in a predetermined section on the side of the expansion pipe 11, and the groove-shaped seating portion 12 (sitting portion ( 12), the first foam 40, the water film 50, the portion on which the second foam 60 is seated) is formed.

Filler 20 and the index ring 30 is interposed between the joints 11 to prevent water from penetrating through the joints 11, the filler material 20 may be a plate-shaped styrofoam, but the joints ( It is preferable that the liquid injection agent is sealed between the joints 11 by being injected between the 11 and then hardened, the index ring 30 is made of an elastic material (for example, rubber) hollow inside the outer diameter of the filler 10 It is fitted to the side and is elastically deformed by the bonding force of the bonding portion 11 to seal between the bonding portion (11).

The first foam 40 is seated over the seating portion 12 of the concrete boxes (1-1,1-2, ...) to cover between the joints 11 to prevent leakage between the joints 11 In order to alleviate the impact imparted from the outside is made through the foam of urethane, etc., the shape of the upper portion (see Fig. 3) is a convex shape while the wing portion 41 is formed on both left and right sides.

The water film 50 is covered to the outside of the first foam 40 to prevent leakage, the central portion is convex along the shape of the first foam 40, the wings 51 are formed on each side.

The second foam member 60 is mounted on the outer surface of the water film 50 and maintains the same surface as the surface of the expansion pipe 10 to absorb earth pressure transferred from the ground. For example, the box-shaped and inner surface of the rectangular cross section has an water film. According to the form of 50, it is processed into groove shape.

The waterproof sheet 70 covers the outside of the joints of the concrete boxes 1-1, 1-2,... And seals the source to prevent water from penetrating the ground through the joints. It is preferable to cover the outer surface of the concrete boxes 1-1, 1-2,.

The cover plate 80 has a width corresponding to the expansion pipe 10 and covers the waterproof sheet 70 to fix the waterproof sheet 70 and to prevent earth pressure from being transferred to the waterproof sheet 70. It is made of synthetic resin, etc., which has strength that is not broken by earth pressure and has a buffering force capable of absorbing earth pressure.

The function of the underground joint splice leakage prevention facility according to the present invention configured as described above is as follows.

Since the cover plate 80 covers and fixes the waterproof sheet 70, the waterproof sheet 70 is covered with water in the ground in a state covered by the periphery of the expansion part 10 of the concrete box 1-1, 1-2,... It is essentially blocked so as not to flow between the expansion pipe (10).

Meanwhile, some water may penetrate through the waterproof sheet 70, and the water is absorbed by the second foam 60, and the water passing through the second foam 60 is inclined by the water film 50. Some flow to both sides and some will no longer penetrate between the junctions 11 and will be steady.

Some water may pass through the water film 50, which is absorbed by the first foam 40 and is blocked by the water ring 30 and the filler material 20.

That is, through the waterproof sheet 70, the second foam 60, the water film 50, the first foam 40, the water ring 30 and the filling material 20 infiltration of water in multiple stages are blocked and absorbed underground Water does not penetrate into the concrete boxes 1-1, 1-2,... Of the cavity 1.

On the other hand, since the underground cavity 1 is installed in the ground, earth pressure must be applied to the concrete boxes 1-1, 1-2,. Since the joints are more vulnerable to earth pressure than the center of the concrete boxes (1-1,1-2,…), even if less earth pressure is applied, large deformation may occur and water leakage may occur, but the cover plate 80 and the second foam body ( 60) and the earth pressure is dispersed and absorbed through the first foam body 40, so that deformation, cracks, etc. of the leakage preventing facility do not occur.

As described above, according to the underground joint joint leakage prevention facility according to the present invention, the penetration of water toward the interior of the concrete box is multi-stage through the waterproof sheet, the second foam, the water film, the first foam, the water ring and the filling material As water is not penetrated inside the concrete box because it is blocked and absorbed, it can improve the reliability of the leak prevention facility and prevent malfunctions and safety accidents such as power lines and communication lines due to water infiltration.

In addition, the earth pressure is not directly transferred to the joint of the concrete box through the cover plate, thereby preventing deformation of the leak prevention facility by the earth pressure to perform the leak prevention function, and the earth pressure is absorbed and dispersed by the foam to substantially Since earth pressure is not applied to the joints of the concrete box, the durability of the leakage preventing facility and the concrete box can be improved.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (2)

An expansion part 10 formed on the joint side of the concrete box of the underground cavity and protruding on the abutting side 11 and an expansion part 10 having a seating part 12 stepped outside the joint part; Filler 20 is interposed between the junction of the expansion pipe portion; An index ring (30) of elastic material coupled to the outside of the filler; A first foam member 40 seated on the seating portion of the expansion pipe; An index film 50 covering the first foam; A second foam member 60 coupled to the outer side of the water film; A waterproof sheet 70 covering the second foam and the expansion pipe; And, Covering the waterproof sheet to prevent the impingement of earth pressure cover plate 80, characterized in that configured including the joint joint leakage prevention facility. The method of claim 1, wherein the filler is a liquid injection agent is injected between the joints and hardened, the index ring is made of a circular cross-section inside the hollow is interposed along the circumference of the expansion of the underground cavity, The first foam is formed to be convex toward the outside at the center of the flat bottom portion, the water film is formed in a curved convex shape of the central portion along the outer shape of the first foam is laminated to the first foam, the second foam is Box-shaped cross-section, the inner surface is formed in a curved shape along the outer surface of the membrane while the outer surface of the underground joint joint leakage prevention facility, characterized in that the same as the surface of the underground cavity.

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