Water stop structure for dam body joint

Abstract

The utility model relates to a water stop structure for a dam body joint, which comprises a horizontal water stop piece, a first water stop rib embedded in a first dam body, a second water stop rib embedded in a second dam body and a connecting piece for connecting the first water stop rib and the second water stop rib; the vertical water stop piece comprises a first water stop plate and a second water stop plate which are integrally connected, the first water stop plate is embedded in the first dam body and fixed to the top of the first water stop rib, and the second water stop plate is embedded in the second dam body and fixed to the top of the second water stop rib. According to the water stopping structure for the dam body joint, the horizontal water stopping piece and the vertical water stopping piece which are perpendicular to each other are arranged in the gap between the first dam body and the second dam body, so that water stopping on different side faces is achieved, water flow is prevented from permeating to the root of the inner side of the dam body, the service life of the dam body is prolonged, the waterproof effect is better, and the service life of the dam body is prolonged. And water source leakage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of dam water stopping, and in particular relates to a water stopping structure for dam body joints. Background Art

[0002] A dam is a water retaining structure that intercepts the flow of water in rivers and channels to raise the water level or regulate the flow. It is used for flood control, water supply, irrigation, hydroelectric power generation, and improved navigation. In recent years, water conservancy projects have been vigorously developed in my country, and the safety of water conservancy projects has received increasing attention, and the safety of dams has been particularly valued.

[0003] Due to the huge mass and volume of the dam, the dam is subject to its own gravity, water pressure and temperature stress, and is prone to uneven subsidence and deformation. To solve this problem, the current practice is to divide the dam into sections, that is, to build the dam into several sections, each 15-20 meters long, so that an expansion joint is formed between the dam bodies to eliminate the impact of uneven subsidence on the safety of the dam. The gaps between the dam bodies can also eliminate damage to the dam structure caused by thermal expansion and contraction.

[0004] However, the existence of gaps between the dam bodies makes it easy for water to penetrate into the roots of the gaps in the dam body. On the one hand, it erodes the dam body, accelerates aging of the dam, and shortens the life of the dam. On the other hand, water penetrating into the dam body will also cause the uplift pressure of the dam body to increase, reducing the safety and stability of the dam. Under long-term erosion of water flow, the gaps will gradually become larger, affecting the water-blocking effect and may even cause the dam to collapse, posing a serious safety hazard. Utility Model Content

[0005] The utility model provides a water-stopping structure for dam body joints, which solves the problems of dam body erosion due to the existence of dam body gaps, accelerated dam aging, shortened dam life and potential safety hazards.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a water-stop structure for dam body joints, which comprises:

[0007] A horizontal water stop member, the horizontal water stop member comprising a first water stop rib embedded in the first dam body, a second water stop rib embedded in the second dam body, and a connecting piece connecting the first water stop rib and the second water stop rib;

[0008] A vertical water stop member includes a first water stop plate and a second water stop plate which are integrally connected. The first water stop plate is embedded in the first dam body and fixed on the top of the first water stop rib. The second water stop plate is embedded in the second dam body and fixed on the top of the second water stop rib.

[0009] Optimally, the horizontal water stop member also includes a first baffle plate integrally connected to the outside of the first water stop rib and extending toward a side away from the connecting piece, and a second baffle plate integrally connected to the outside of the second water stop rib and extending toward a side away from the connecting piece.

[0010] Optimally, the vertical water stop member further includes an inserting groove opened on the second dam body and a filling material filled in the inserting groove, and the second water stop plate is inserted in the filling material.

[0011] Optimally, the vertical water stop member also includes an extension plate integrally connected to the first water stop plate and embedded in the first dam body, a cutout opened on the side of the second water stop plate close to the second water stop rib, and a welding plate fixed on one side of the second water stop plate.

[0012] Optimally, the vertical water stop member further comprises a first lap plate fixed between the first water stop rib and the first water stop plate and a second lap plate fixed between the second water stop rib and the second water stop plate, wherein the length of the second lap plate is greater than the length of the incision.

[0013] Optimally, the extension plate is arranged perpendicular to the first water stop plate and is fixed to the first baffle plate.

[0014] Optimally, the width of the plug-in groove of the second dam gradually expands in the direction away from the first dam.

[0015] Optimally, it also includes filler and caulking poured into the gap, and the caulking is located on the top and side of the filler.

[0016] Optimally, the filler is mastic asphalt.

[0017] Optimally, the filler is polyethylene, and the caulking glue is polyurethane caulking glue.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a water-stopping structure for dam body joints, by arranging mutually perpendicular horizontal water-stopping parts and vertical water-stopping parts in the gap between the first dam body and the second dam body, thereby achieving water-stopping on different sides, preventing water flow from penetrating into the inner root of the dam body, thereby extending the service life of the dam body, and achieving better waterproofing effect, thus preventing water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is the front view of the utility model;

[0022] Figure 3 For this utility model Figure 2 Sectional view of the AA plane;

[0023] Figure 4 This is a front view of the horizontal water stop of the utility model;

[0024] Description of reference numerals:

[0025] 1. Horizontal water stop; 11. First water stop rib; 12. Second water stop rib; 13. First baffle; 14. Second baffle; 15. Connecting piece;

[0026] 2. vertical water stop; 21. plug-in groove; 22. filling material; 23. first water stop plate; 24. second water stop plate; 25. extension plate; 26. cutout; 27. first lap plate; 28. second lap plate; 29. ​​welding plate;

[0027] 3. Asphalt box;

[0028] 4. Sealing material;

[0029] 5. Caulking glue. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0031] In water conservancy projects, in order to avoid deformation of the dam body caused by thermal expansion and contraction, the dam body usually needs to be cast in sections, and there will be a gap between two adjacent dam bodies. Figure 1 As shown, it is a structural schematic diagram of the water-stopping structure for the dam body joint of the utility model. A gap will be formed between the first dam body and the second dam body. In order to avoid water leakage and ensure the safety and stability of the dam body, a water-stopping structure needs to be set at the gap between the first dam body and the second dam body.

[0032] The water stop structure includes a horizontal water stop 1, a vertical water stop 2, an asphalt box 3, a caulking material 4 and a caulking glue 5. The vertical water stop 2 is fixed on the top of the horizontal water stop 1, and both are embedded in the first dam body and the second dam body (the horizontal water stop 1 and the vertical water stop 2 are welded and fixed in the casting frame before the concrete is poured).

[0033] The asphalt box 3 is arranged on one side of the horizontal water stop member 1 and the vertical water stop member 2. During actual construction, asphalt is poured into the asphalt box 3 to promote the effective connection and bonding of the connecting parts of the horizontal water stop member 1 and the vertical water stop member 2, thereby forming a water stop valve to play the role and value of water stopping.

[0034] The horizontal water stop 1 is used to limit the penetration of rainwater above the dam body, such as Figure 4As shown, the horizontal water stop member 1 includes a first water stop rib 11, a second water stop rib 12, a first baffle 13, a second baffle 14 and a connecting piece 15. The first water stop rib 11 and the second water stop rib 12 are rectangular plate structures, and the shapes and sizes of the two are exactly the same. The first water stop rib 11 is horizontally embedded in the first dam body, and the second water stop rib 12 is horizontally embedded in the second dam body, and the first water stop rib 11 and the second water stop rib 12 are in the same plane to avoid tilting and causing rainwater to penetrate into the root of the dam body.

[0035] The connecting piece 15 is integrally connected to the inner side of the first water stop rib 11 and the second water stop rib 12, and has the same length as the first water stop rib 11. The connecting piece 15 is "U" shaped, and its opening faces upward. The "U" shaped connecting piece 15 has a certain elasticity and can better adapt to the deformation of the gap between the first dam body and the second dam body.

[0036] The U-shaped connecting piece 15 is provided with a U-shaped receiving groove, and the asphalt in the asphalt box 3 will flow into the U-shaped receiving groove, so as to achieve the effect of waterproofing and moisture-proofing, and prevent the connecting piece 15 from being broken due to rust.

[0037] The first baffle plate 13 is integrally connected to the side of the first water stop rib 11 away from the second water stop rib 12, and has the same length as the first water stop rib 11. The first baffle plate 13 and the connecting piece 15 are respectively located on both sides of the first water stop rib 11 (i.e., the first baffle plate 13 is located at the top of the first water stop rib 11, and the connecting piece 15 is located at the bottom of the first water stop rib 11).

[0038] The second baffle plate 14 is integrally connected to the side of the second water stop rib 12 away from the first water stop rib 11, and has the same length as the second water stop rib 12. The second baffle plate 14 and the connecting piece 15 are respectively located on both sides of the second water stop rib 12 (i.e., the second baffle plate 14 is located at the top of the second water stop rib 12, and the connecting piece 15 is located at the bottom of the second water stop rib 12).

[0039] like Figure 4 As shown, the first baffle 13 and the second baffle 14 are arranged upward, and the tops of the first dam body and the second dam body are the water-facing surfaces (the water-facing surfaces here are the rain-facing sides). When external rainwater penetrates downward through the first dam body and the second dam body, the horizontal water stop 1 can intercept the rainwater penetrating downward to prevent the rainwater from penetrating to the roots of the first dam body and the second dam body.

[0040] The first baffle plate 13 is perpendicular to the first water stop rib 11, and the second baffle plate 14 is perpendicular to the second water stop rib 12. When the vertical water stop member 2 is fixedly installed, the vertical water stop member 2 will be vertically inserted between the first baffle plate 13 and the second baffle plate 14 to facilitate the subsequent fixed connection between the two, thereby improving the stability after welding.

[0041] Since the dam body is located adjacent to the water, the vertical water stop 2 is used to limit the penetration of water flow on one side of the dam body. Figure 3 As shown, the vertical water stop 2 includes a plug-in groove 21, a filler 22, a first water stop plate 23, a second water stop plate 24, an extension plate 25, a cutout 26, a first lap plate 27, a second lap plate 28 and a welding plate 29. The first water stop plate 23 and the second water stop plate 24 are integrally connected, the first water stop plate 23 is embedded in the first dam body, and the second water stop plate 24 is embedded in the second dam body, and the first water stop plate 23 and the second water stop plate 24 are used to limit the penetration of water flow on one side of the dam body.

[0042] The plug-in slot 21 is vertically opened in the second dam body, the first water stop plate 23 is embedded in the first dam body, the second water stop plate 24 is inserted in the plug-in slot 21, and then the filler 22 (asphalt mastic) is poured in the plug-in slot 21 to fix the second water stop plate 24. Asphalt mastic (SMA) is a colloid substance mixed with asphalt and resin, which has very good waterproof performance. It can effectively prevent water from penetrating one side of the dam body, and can prevent the second water stop plate 24 from rusting, thereby improving the waterproof and water-stopping effects.

[0043] like Figure 3 As shown, the width of the plug-in slot 21 of the second dam body gradually expands in the direction away from the first dam body (that is, the plug-in slot 21 is in the shape of an isosceles trapezoid, with its upper bottom close to the first dam body and its lower bottom away from the first dam body). When the water flow on one side of the dam body penetrates into the plug-in slot 21, the gradually expanding design makes it more difficult for the water flow to flow forward.

[0044] The extension plate 25 is integrally connected to the side of the first water stop plate 23 away from the second water stop plate 24. When water flows infiltrate one side of the dam body, the extension plate 25 can increase the path of water flow infiltration, thereby reducing the amount of water flow infiltration.

[0045] like Figure 1 , 3 As shown, the extension plate 25 is arranged perpendicularly to the first water stop plate 23. When fixing the vertical water stop member 2, the extension plate 25 just fits perpendicularly to the first baffle plate 13, which is convenient for subsequent welding and improves the firmness of the fixed connection between the vertical water stop member 2 and the horizontal water stop member 1.

[0046] The cutout 26 is provided on one side of the second water stop plate 24 close to the second water stop rib 12. The design of the cutout 26 facilitates the flow of asphalt in the asphalt box 3, thereby promoting the effective connection and bonding of the connecting parts of the horizontal water stop member 1 and the vertical water stop member 2, thereby forming a water stop valve and exerting the function and value of water stopping.

[0047] Due to the existence of the cutout 26 , the structural strength of the second water stop plate 24 is reduced, so a welding plate 29 is welded on one side of the second water stop plate 24 . The welding plate 29 is “L” shaped and avoids the position of the cutout 26 below while being welded and fixed.

[0048] The first lap plate 27 is fixed on the top of the first water stop rib 11 and is fixed to the first baffle 13 and the first water stop plate 23. Since the first water stop plate 23 is arranged vertically, the contact area between the first water stop plate 23 and the first water stop rib 11 is small, so the welding surface is small and the sufficient connection strength between the two cannot be guaranteed. Therefore, the first lap plate 27 is arranged to improve the structural strength of the first water stop plate 23 and the first water stop rib 11.

[0049] The second lap plate 28 is fixed to the top of the second water stop rib 12, and the second water stop plate 24 is fixed. Since the second water stop plate 24 has a cutout 26 on one side close to the second water stop rib 12, the length of the second lap plate 28 is greater than the length of the cutout 26 to ensure that there is a welding place between the second lap plate 28 and the second water stop plate 24.

[0050] The asphalt box 3 is embedded in the vertical precast concrete groove, and then a groove is opened on it to accommodate the horizontal water stop 1. The vertical water stop 2 is arranged in the groove precast between the vertical concrete and the asphalt box 3. During the actual construction, asphalt is poured into the asphalt box 3 to promote the effective connection and bonding of the connecting parts of the horizontal water stop 1 and the vertical water stop 2, thereby forming a water stop valve to play the role and value of water stopping.

[0051] The caulking material 4 (polyethylene) is filled in the gap between the first dam body and the second dam body, thereby playing a role of water isolation. In addition, polyethylene has a certain viscosity, which can better bond the horizontal water stop 1 and the vertical water stop 2.

[0052] The caulking glue 5 is arranged on the top and side of the filler 4, and a gap is formed between the first dam body and the second dam body. The filler 4 is poured in the gap. The top of the filler 4 is the top of the first dam body and the second dam body, and the top of the filler 4 is the first water-facing surface (the side facing the rainwater), and the side of the filler 4 is the side of the first dam body and the second dam body, and the side of the filler 4 is the second water-facing surface (the side close to the water flow).

[0053] The caulking glue 5 is a polyurethane caulking glue. The first waterproofing is performed by the caulking glue 5. The polyurethane caulking glue has high tensile and compression resistance, can adapt to various environmental changes, is not easy to crack or fall off, and maintains a long-term use effect; and has good waterproof performance, can effectively prevent water penetration, and protect the interior of the building from damage by moisture and mildew.

[0054] The utility model discloses a water-stopping structure for dam body joints, by arranging mutually perpendicular horizontal water-stopping parts 1 and vertical water-stopping parts 2 in the gap between the first dam body and the second dam body, thereby achieving water-stopping on different sides, preventing water flow from penetrating into the inner root of the dam body, thereby extending the service life of the dam body, and achieving better waterproofing effect, thus preventing water leakage.

[0055] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A water-stopping structure for a dam body joint, the dam body comprising a first dam body, a second dam body and a gap formed between the first dam body and the second dam body, characterized in that: It includes: A horizontal water stop member (1), the horizontal water stop member (1) comprising a first water stop rib (11) embedded in a first dam body, a second water stop rib (12) embedded in the second dam body, and a connecting piece (15) connecting the first water stop rib (11) and the second water stop rib (12); A vertical water stop member (2), the vertical water stop member (2) comprising a first water stop plate (23) and a second water stop plate (24) which are integrally connected, the first water stop plate (23) being embedded in the first dam body and fixed on the top of the first water stop rib (11), the second water stop plate (24) being embedded in the second dam body and fixed on the top of the second water stop rib (12).

2. A water-stopping structure for dam joints according to claim 1, characterized in that: The horizontal water stop member (1) further comprises a first baffle plate (13) integrally connected to the outside of the first water stop rib (11) and extending toward a side away from the connecting piece (15), and a second baffle plate (14) integrally connected to the outside of the second water stop rib (12) and extending toward a side away from the connecting piece (15).

3. The water-stopping structure for dam joints according to claim 1 is characterized in that: The vertical water stop member (2) further comprises an inserting groove (21) provided on the second dam body and a filling material (22) filled in the inserting groove (21), and the second water stop plate (24) is inserted in the filling material (22).

4. The waterproof structure for dam joints according to claim 1, characterized in that: The vertical water stop member (2) also includes an extension plate (25) integrally connected to the first water stop plate (23) and embedded in the first dam body, a cutout (26) provided on the side of the second water stop plate (24) close to the second water stop rib (12), and a welding plate (29) fixed on one side of the second water stop plate (24).

5. The water-stopping structure for dam joints according to claim 1 is characterized in that: The vertical water stop member (2) further comprises a first lap plate (27) fixed between the first water stop rib (11) and the first water stop plate (23), and a second lap plate (28) fixed between the second water stop rib (12) and the second water stop plate (24), wherein the length of the second lap plate (28) is greater than the length of the cutout (26).

6. A water-stopping structure for dam joints according to claim 4, characterized in that: The extension plate (25) is arranged perpendicularly to the first water stop plate (23) and is fixed to the first baffle plate (13).

7. The water-stopping structure for dam joints according to claim 3 is characterized in that: The width of the plug-in groove (21) of the second dam body gradually increases in a direction away from the first dam body.

8. The water-stopping structure for dam joints according to claim 1 is characterized in that: It also includes a filler (4) and a caulking glue (5) poured into the gap, wherein the caulking glue (5) is located on the top and side of the filler (4).

9. The waterproof structure for dam joints according to claim 3, characterized in that: The filler (22) is mastic asphalt.

10. A water-stopping structure for dam joints according to claim 8, characterized in that: The filler (4) is polyethylene, and the caulking glue (5) is polyurethane caulking glue.

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