Tunnel top waterproof structure

Abstract

The utility model belongs to the technical field of tunnel waterproofing, and discloses a tunnel top waterproof structure which comprises a base body, a first water absorption sponge is installed at the top end of the base body, first waterproof cloth is installed at the top end of the first water absorption sponge, drainage chutes are installed at the bottom ends of the two sides of the base body, and an arc-shaped installation groove is formed in the base body. And an arc-shaped extrusion plate is slidably mounted in the arc-shaped mounting groove, water collecting grooves are formed in the bottom ends of the two sides of the arc-shaped extrusion plate, a second water absorption sponge is mounted in the middle of the bottom end of the arc-shaped extrusion plate, and the bottom end of the second water absorption sponge is connected with the middle of the bottom end of the arc-shaped mounting groove. According to the tunnel top waterproof structure, water concentrated at the top of a tunnel can be discharged, water pressure accumulated at the top of the tunnel is relieved through deformation of the first water absorption sponge, meanwhile, water accumulated in the base body can be absorbed and discharged, the waterproof effect of the top of the tunnel is improved, and the service life of the tunnel top waterproof structure is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel waterproofing, and more specifically, particularly relates to a waterproof structure for the top of a tunnel. Background Art

[0002] A tunnel is an engineering structure buried in the stratum and is a form of human utilization of underground space. The structure of a tunnel includes two parts: the main building and the auxiliary equipment. Tunnels that have been in use for a long time are often eroded by rainwater, and a waterproof structure needs to be set up inside the tunnel during tunnel construction.

[0003] After the tunnel is completed, there is sometimes a situation where the deep buried drainage ditch in the center of the tunnel is not unobstructed, so that the water accumulated in the rock mass behind the tunnel cannot be discharged in time, the water pressure gradually increases, and the pressurized water will seep out along the concrete construction joints. In addition, a large amount of water accumulated inside the matrix is likely to cause corrosion to the matrix, affecting the waterproof effect of the matrix.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a waterproof structure for the top of a tunnel is provided with the expectation of achieving a more practical value purpose. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a waterproof structure for the top of a tunnel, which is achieved by the following specific technical means:

[0006] A waterproof structure for the top of a tunnel includes a matrix. A first absorbent sponge is installed at the top end of the matrix. A first waterproof cloth is installed at the top end of the first absorbent sponge. Drainage chutes are installed at the bottom ends on both sides of the matrix. An arc-shaped installation groove is provided inside the matrix. An arc-shaped extrusion plate is slidably installed inside the arc-shaped installation groove. Water collecting grooves are installed at the bottom ends on both sides of the arc-shaped extrusion plate. A second absorbent sponge is installed at the middle position at the bottom end of the arc-shaped extrusion plate, and the bottom end of the second absorbent sponge is connected to the middle position at the bottom end of the arc-shaped installation groove. A second waterproof cloth is installed on the inner wall of the matrix, and fixing steel bars are installed on the surface of the second waterproof cloth.

[0007] Further, the bottom end of the water collecting groove is inclined, and a drain port is installed on one side of the bottom end of the water collecting groove at the lower position.

[0008] Further, both sides of the bottom end of the arc-shaped installation groove are inclined, and a drainage pipe is installed on one side of the bottom end of the arc-shaped installation groove at the lower position, and the drainage pipe extends from the bottom end of the matrix to the outside.

[0009] Further, the drainage pipe is directly below the drain port.

[0010] Further, the material of the matrix is concrete.

[0011] Further, both the first waterproof cloth and the second waterproof cloth are made of polyethylene (PE) material.

[0012] Further, the fixing steel bars are arranged vertically and horizontally in a crisscross pattern.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the waterproof structure for the tunnel top of the utility model, through the combined use of the base body, the first water-absorbing sponge, the first waterproof cloth and the drainage chute, it is convenient to drain the water concentrated on the tunnel top, and through the deformation of the first water-absorbing sponge, the water pressure accumulated on the tunnel top is relieved, thereby improving the waterproof effect of the tunnel top.

[0015] In the waterproof structure for the tunnel top of the utility model, through the combined use of the base body, the arc-shaped installation groove, the arc-shaped extrusion plate, the water collection trough, the second water-absorbing sponge, the second waterproof cloth, the fixing steel bars, the drain outlet and the drain pipe, it is convenient to absorb and drain the water accumulated inside the base body, thereby improving the waterproof effect of the tunnel top and extending the service life of the waterproof structure for the tunnel top. Description of the Drawings

[0016] Figure 1 is the three-dimensional schematic diagram of the utility model.

[0017] Figure 2 is the front cross-sectional schematic diagram of the internal structure of the utility model.

[0018] Figure 3 is the side cross-sectional schematic diagram of the internal structure of the utility model.

[0019] Figure 4 is the bottom view schematic diagram of the utility model.

[0020] Figure 5 is the Figure 1 magnified schematic diagram of part A in the utility model.

[0021] In the figure, the corresponding relationship between the part names and the drawing reference numerals is as follows:

[0022] 1. Base body; 2. First water-absorbing sponge; 3. First waterproof cloth; 4. Drainage chute; 5. Arc-shaped installation groove; 6. Arc-shaped extrusion plate; 7. Water collection trough; 8. Second water-absorbing sponge; 9. Second waterproof cloth; 10. Fixing steel bars; 11. Drain outlet; 12. Drain pipe. Detailed Embodiment

[0023] The following further describes in detail the embodiments of the utility model with reference to the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Embodiment:

[0027] As shown in the attached Figure 1 to the attached Figure 5 figure:

[0028] The present utility model provides a waterproof structure for the top of a tunnel, which includes a base body 1. A first water-absorbing sponge 2 is installed at the top end of the base body 1. A first waterproof cloth 3 is installed at the top end of the first water-absorbing sponge 2. Drainage chutes 4 are installed at the bottom ends on both sides of the base body 1. An arc-shaped installation groove 5 is provided inside the base body 1. An arc-shaped pressing plate 6 is slidably installed inside the arc-shaped installation groove 5. Water collecting grooves 7 are installed at the bottom ends on both sides of the arc-shaped pressing plate 6. A second water-absorbing sponge 8 is installed at the middle position of the bottom end of the arc-shaped pressing plate 6, and the bottom end of the second water-absorbing sponge 8 is connected to the middle position of the bottom end of the arc-shaped installation groove 5. A second waterproof cloth 9 is installed on the inner wall of the base body 1. Fixed steel bars 10 are installed on the surface of the second waterproof cloth 9. The first waterproof cloth 3 can isolate moisture and make the water flow along both sides of the first waterproof cloth 3 and fall into the drainage chutes 4. When there is more moisture, the first water-absorbing sponge 2 can absorb the excess moisture. When the water pressure at the top of the tunnel is relatively high, the water pressure will squeeze the first water-absorbing sponge 2, causing the first water-absorbing sponge 2 to deform, achieving pressure relief, and at the same time, the moisture in the first water-absorbing sponge 2 can be squeezed out, enabling the first water-absorbing sponge 2 to be recycled.

[0029] Among them, the bottom end of the water collecting tank 7 is inclined, and a drain port 11 is installed on one side of the bottom end of the water collecting tank 7 at the lower position. When water enters the inside of the base body 1 from the surface of the base body 1, a part of the water first falls along both sides of the arc-shaped pressing plate 6 to the bottom end of the arc-shaped installation groove 5. At the same time, a part of the water will be absorbed by the second water absorption sponge 8. When the second water absorption sponge 8 absorbs enough water and is in a saturated state, the excess water falls into the water collecting tank 7 along the top end of the arc-shaped installation groove 5. The water falls into the drain port 11 along the bottom end of the water collecting tank 7. And while the water is flowing in the water collecting tank 7, it will press the arc-shaped pressing plate 6 to move downward through gravity, so that the arc-shaped pressing plate 6 squeezes out the water accumulated in the second water absorption sponge 8 and falls into the water collecting tank 7. After all the water in the water collecting tank 7 is discharged from the drain port 11, the downward pressing force of the arc-shaped pressing plate 6 decreases, and it resets under the action of the rebound of the second water absorption sponge 8.

[0030] Among them, both sides of the bottom end of the arc-shaped installation groove 5 are inclined, and a drain pipe 12 is installed on one side of the bottom end of the arc-shaped installation groove 5 at the lower position, and the drain pipe 12 extends from the bottom end of the base body 1 to the outside, which is convenient for collecting and discharging the water falling from both sides of the arc-shaped installation groove 5.

[0031] Among them, the drain pipe 12 is directly below the drain port 11, which is convenient for discharging the water accumulated in the water collecting tank 7.

[0032] Among them, the material of the base body 1 is concrete. Concrete has good compactness, and its internal structure is relatively tight, reducing the possibility of water penetration. Under normal circumstances, the microscopic pores and cracks in concrete have a certain hindering effect on water penetration. The gel and hydration products formed after the cementitious material in concrete solidifies in water can fill the microscopic pores, improving the compactness of concrete, thereby reducing water penetration. And concrete has good durability, can resist long-term water erosion and chemical erosion, and is not easy to lose its structural strength due to the intrusion of water.

[0033] Among them, both the first waterproof cloth 3 and the second waterproof cloth 9 are made of polyethylene PE material. Polyethylene has strong waterproofness, its molecular structure is dense, and it is not easy to absorb water. The polyethylene material has good flexibility and plasticity, and can maintain stable performance in different environments and temperatures. When used as a waterproof cloth, the flexibility of polyethylene allows it to be folded, curled or stretched, suitable for a variety of application scenarios. Polyethylene has strong durability and can resist ultraviolet rays, chemical corrosion and abrasion. This makes the waterproof cloth made of polyethylene have a long service life in outdoor environments. In addition, the production cost of polyethylene material is relatively low, and it is easy to be processed into waterproof cloths of different shapes and sizes.

[0034] Among them, the fixing steel bars 10 are arranged vertically and horizontally, and the second waterproof cloth 9 on the inner wall surface of the tunnel is fixed by the fixing steel bars 10, so as to improve the fitting effect between the second waterproof cloth 9 and the inner wall of the tunnel, and prevent the second waterproof cloth 9 from falling off the inner wall surface of the tunnel after long-term use.

[0035] The working principle of this embodiment: When the waterproof structure at the top of the tunnel is waterproofing, the first waterproof cloth 3 can isolate moisture and make the water flow along both sides of the first waterproof cloth 3 into the drainage chute 4. When there is more moisture, the first water-absorbing sponge 2 can absorb the excess moisture. When the water pressure at the top of the tunnel is relatively high, the water pressure will squeeze the first water-absorbing sponge 2, causing the first water-absorbing sponge 2 to deform, realizing pressure relief. At the same time, the moisture in the first water-absorbing sponge 2 can also be squeezed out, enabling the first water-absorbing sponge 2 to be recycled. When the moisture enters the inside of the base body 1 from the surface of the base body 1, a part of the moisture first falls along both sides of the arc-shaped pressing plate 6 to the bottom end of the arc-shaped installation groove 5. At the same time, a part of the moisture will be absorbed by the second water-absorbing sponge 8. When the second water-absorbing sponge 8 absorbs enough moisture and is in a saturated state, the excess moisture falls into the water collecting groove 7 along the top end of the arc-shaped installation groove 5. The moisture falls into the drain port 11 along the bottom end of the water collecting groove 7. And while the moisture flows in the water collecting groove 7, it will press the arc-shaped pressing plate 6 to move downward by gravity, so that the arc-shaped pressing plate 6 squeezes out the moisture accumulated in the second water-absorbing sponge 8 and falls into the water collecting groove 7. After all the water in the water collecting groove 7 is discharged from the drain port 11, the downward pressing force of the arc-shaped pressing plate 6 decreases, and it resets under the action of the rebound of the second water-absorbing sponge 8. Since the drainage pipe 12 is located directly below the drain port 11, the drainage pipe 12 can discharge the moisture falling from both sides of the arc-shaped installation groove 5 and the moisture discharged from the water collecting groove 7. In addition, the vertically and horizontally arranged fixing steel bars 10 can improve the fitting effect between the second waterproof cloth 9 and the inner wall of the tunnel, and prevent the second waterproof cloth 9 from falling off the inner wall surface of the tunnel after long-term use.

[0036] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A tunnel top waterproof structure, comprising a base (1), characterized in that: A first water-absorbing sponge (2) is installed at the top of the base (1), a first waterproof cloth (3) is installed at the top of the first water-absorbing sponge (2), drainage chute (4) is installed at the bottom ends of both sides of the base (1), an arc-shaped installation groove (5) is provided inside the base (1), an arc-shaped extrusion plate (6) is slidably installed inside the arc-shaped installation groove (5), a water collecting trough (7) is installed at the bottom ends of both sides of the arc-shaped extrusion plate (6), a second water-absorbing sponge (8) is installed at the middle position of the bottom end of the arc-shaped extrusion plate (6), and the bottom end of the second water-absorbing sponge (8) is connected to the middle position of the bottom end of the arc-shaped installation groove (5), a second waterproof cloth (9) is installed on the inner wall of the base (1), and a fixed steel bar (10) is installed on the surface of the second waterproof cloth (9).

2. The tunnel top waterproof structure according to claim 1, characterized in that: The bottom end of the water collecting trough (7) is arranged to be inclined, and a drainage outlet (11) is installed on one side of the bottom end of the water collecting trough (7) located at a lower position.

3. The tunnel top waterproof structure according to claim 1, characterized in that: Both sides of the bottom end of the arc-shaped installation groove (5) are arranged obliquely, and a drainage pipe (12) is installed on one side of the bottom end of the arc-shaped installation groove (5) located at a lower position, and the drainage pipe (12) extends from the bottom end of the base (1) to the outside.

4. The tunnel top waterproof structure as claimed in claim 3, characterized in that: The drainage pipe (12) is located directly below the drainage outlet (11).

5. The tunnel top waterproof structure according to claim 1, characterized in that: The material of the base (1) is concrete.

6. The tunnel top waterproof structure according to claim 1, characterized in that: The first waterproof cloth (3) and the second waterproof cloth (9) are both made of polyethylene (PE).

7. The tunnel top waterproof structure according to claim 1, characterized in that: The fixed steel bars (10) are arranged in a crisscross pattern.

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