Structure for building gravity dam on deep covering layer

Abstract

The utility model relates to the technical field of structures for building gravity dams, in particular to a structure for building a gravity dam on a deep covering layer. The anti-seepage wall comprises an anti-seepage wall body, a supporting column is arranged at the left end of the anti-seepage wall body, dense soil bodies are arranged on the two sides of the supporting column, a pre-fixing assembly is arranged at the right end of the anti-seepage wall body, the pre-fixing assembly comprises a waterproof plate arranged at the right end of the anti-seepage wall body, and the waterproof plate is a plastic plate. One side of the waterproof plate is fixedly connected with a fixing column, when the pre-fixing assembly is arranged and the waterproof plate needs to be pre-fixed, a worker drags the waterproof plate, so that the fixing column is clamped into the fixing groove, the fixing groove is in contact with the sliding surface, the plug pin shrinks, and after the fixing column is completely clamped into the fixing groove, the plug pin is clamped into the clamping groove through a reset mechanism; and then, the waterproof plate and the diaphragm wall are fixed through nails, so that the effect that the situation that the waterproof plate needs to be supported by a person to be nailed into the diaphragm wall is avoided as far as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of structures for building gravity dams, in particular to a structure for building a gravity dam on a thick covering layer. Background Art

[0002] The structure for building a gravity dam is used to build a heavy gravity dam on the thick cover layer of the riverbed. The structure for building a gravity dam consists of an anti-seepage wall, support columns, and dense soil. When building a gravity dam on the thick cover layer of the riverbed, a construction pit is dug in the thick cover layer, an anti-seepage wall is built in the construction pit, and then support columns are inserted. The dense soil is poured into the construction pit and compacted, and finally a gravity dam is built above the construction pit, thereby avoiding the problem of insufficient bearing capacity, excessive deformation and permeability of the gravity dam foundation built on the thick sand and gravel layer.

[0003] The inventors found in their daily work that when the structure of a gravity dam is used, in order to improve the water-proof property of the anti-seepage wall, a waterproof board is generally installed on one side of the anti-seepage wall. When the waterproof board is fixed to the anti-seepage wall, workers need to stick the waterproof board horizontally to the anti-seepage wall and hammer in nails to fix the waterproof board to the wall. Since the workers need to keep supporting the waterproof board to stick to the anti-seepage wall, the labor intensity of the workers may be increased. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in order to improve the water-proof property of the anti-seepage wall in actual use, a waterproof board is generally installed on one side of the anti-seepage wall, and when the waterproof board is fixed to the anti-seepage wall, workers need to stick the waterproof board horizontally to the anti-seepage wall and drive nails to fix the waterproof board and the wall. Since the workers need to support the waterproof board to stick to the anti-seepage wall all the time, the labor intensity of the workers may be increased. Therefore, a structure for building a gravity dam on a thick covering layer is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a structure for building a gravity dam on a thick covering layer, comprising an anti-seepage wall, a support column is arranged at the left end of the anti-seepage wall, and dense soil is arranged on both sides of the support column, a pre-fixed component is arranged at the right end of the anti-seepage wall, and the pre-fixed component comprises a waterproof board arranged at the right end of the anti-seepage wall, the waterproof board is a plastic board, and a fixing column is fixedly connected to one side of the waterproof board, a fixing groove is provided on the side of the anti-seepage wall close to the fixing column, and card grooves are provided on both sides of the inner wall of the fixing groove, and pins are slidably inserted on both sides of the arc surface of the fixing column, and a sliding surface is provided on one side of the pin.

[0006] The effect achieved by the above-mentioned components is: by setting the pre-fixing component, when the waterproof board needs to be pre-fixed, the worker drags the waterproof board so that the fixing column is inserted into the fixing groove, so that the fixing groove contacts the sliding surface, and the pin contracts. After the fixing column is completely inserted into the fixing groove, the pin is inserted into the slot through the resetting mechanism, thereby pre-fixing the waterproof board, and then fixing the waterproof board to the anti-seepage wall with nails, thereby avoiding the need for people to support the waterproof board to the anti-seepage wall before nailing it in.

[0007] Preferably, the lower end of the upper latch is fixedly connected to a spring, and the other end of the spring is fixed to the lower latch.

[0008] The effect achieved by the above components is: the latch is reset by arranging a spring.

[0009] Preferably, a sealing cover is slidably inserted into the right end of the waterproof plate, and a handle is fixedly connected to the right end of the sealing cover.

[0010] The effect achieved by the above components is that the sealing cover moves by pulling the handle.

[0011] Preferably, a pull rope is fixedly connected to the lower end of the latch, the pull rope passes through the fixed column, and the pull rope is fixed to the sealing cover.

[0012] The effects achieved by the above components are: the sealing cover moves, so that the pull rope is pulled, so that the latch is retracted and separated from the slot, thereby disassembling the waterproof board.

[0013] Preferably, a waterproof coating is provided on one side of the anti-seepage wall close to the waterproof board.

[0014] The effect achieved by the above components is: by setting a waterproof coating, the waterproof coating can be a polymer modified asphalt waterproof coating, thereby improving the waterproofness of the anti-seepage wall.

[0015] Preferably, a sealing assembly is provided between the sealing cover and the waterproof plate, and the sealing assembly comprises an airbag installed on the inner wall of the sealing cover, and a sealing ring is fixedly connected to the arc surface of the airbag.

[0016] The effect achieved by the above components is: the airbag is filled with air to make it bulge, so that the sealing ring is pushed to be stuck into the waterproof plate, thereby sealing the sealing cover.

[0017] Preferably, the sealing ring is inserted into the waterproof board, and the right end of the waterproof board is fixedly connected with an air nozzle.

[0018] The effects achieved by the above components are: connecting the air pump and the air nozzle, starting the air pump, and filling the air bag with air.

[0019] Preferably, the air nozzle and the air bag are fixed, and a cover is provided on the surface of the air nozzle.

[0020] The effects achieved by the above components are: open the cover, press the valve core in the air nozzle, and release the air in the airbag.

[0021] In summary, the beneficial effects of the utility model are:

[0022] In the utility model, by setting a pre-fixing component, when the waterproof board needs to be pre-fixed, the worker drags the waterproof board so that the fixing column is inserted into the fixing groove, so that the fixing groove contacts the sliding surface, and the pin is contracted. After the fixing column is completely inserted into the fixing groove, the pin is inserted into the groove through the resetting mechanism, thereby pre-fixing the waterproof board, and then the waterproof board is fixed to the anti-seepage wall by nails, thereby avoiding the need for people to support the waterproof board to the anti-seepage wall before nailing it in as much as possible, and solving the problem that in order to improve the water seepage resistance of the anti-seepage wall, a waterproof board is generally installed on one side of the anti-seepage wall, and when the waterproof board is fixed to the anti-seepage wall, the worker needs to stick the waterproof board horizontally to the anti-seepage wall and drive nails to fix the waterproof board to the wall. Since the worker needs to support the waterproof board to the anti-seepage wall all the time, the labor intensity of the worker may be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of part of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the cross section of the pre-fixed component of the utility model.

[0026] Legend: 1. Anti-seepage wall; 2. Pre-fixed components; 3. Sealing components; 4. Densified soil; 5. Support column; 21. Waterproof board; 22. Fixed column; 23. Fixed groove; 24. Latch; 25. Slot; 26. Pull rope; 27. Sealing cover; 28. Handle; 29. ​​Sliding surface; 210. Waterproof coating; 211. Spring; 31. Air bag; 32. Sealing ring; 33. Air nozzle. DETAILED DESCRIPTION

[0027] Reference Figure 1 As shown, the utility model provides a technical solution: a structure for building a gravity dam on a thick covering layer includes an anti-seepage wall 1, a support column 5 is arranged at the left end of the anti-seepage wall 1, and dense soil 4 is arranged on both sides of the support column 5, and a pre-fixed component 2 is arranged at the right end of the anti-seepage wall 1.

[0028] Reference Figure 2 and Figure 3As shown, in this embodiment: the pre-fixing component 2 includes a waterproof plate 21 arranged at the right end of the anti-seepage wall 1, the waterproof plate 21 is a plastic plate, one side of the waterproof plate 21 is fixedly connected to a fixing column 22, a fixing groove 23 is provided on the side of the anti-seepage wall 1 close to the fixing column 22, and a clamping groove 25 is provided on both sides of the inner wall of the fixing groove 23, and a latch 24 is slidably inserted on both sides of the arc surface of the fixing column 22, and a sliding surface 29 is provided on one side of the latch 24. By setting the pre-fixing component 2, when it is necessary to pre-fix the waterproof plate 21, the worker drags the waterproof plate 21 so that the fixing column 22 is inserted into the fixing groove 23, so that the fixing groove 23 contacts the sliding surface 29, so that the latch 24 contracts, and after the fixing column 22 is completely inserted into the fixing groove 23, the latch 24 is inserted into the clamping groove 25 through the reset mechanism, thereby pre-fixing the waterproof plate 21, and then the waterproof plate 21 is fixed to the anti-seepage wall 1 by nails, thereby avoiding the need to fix as much as possible. The person is required to support the waterproof board 21 to the anti-seepage wall 1 and nail it in. The lower end of the upper side pin 24 is fixedly connected with a spring 211, and the other end of the spring 211 is fixed to the lower end pin 24. By setting the spring 211, the pin 24 is reset. The right end of the waterproof board 21 is slidably inserted with a sealing cover 27, and the right end of the sealing cover 27 is fixedly connected with a handle 28. The handle 28 is pulled to move the sealing cover 27. The lower end of the pin 24 is fixedly connected with a pull rope 26, and the pull rope 26 passes through the fixed column 22. The pull rope 26 and the sealing cover 27 are fixed. The sealing cover 27 moves, so that the pull rope 26 is pulled, so that the pin 24 is retracted and separated from the slot 25, thereby disassembling the waterproof board 21. A waterproof coating 210 is provided on the side of the anti-seepage wall 1 close to the waterproof board 21. By providing the waterproof coating 210, the waterproof coating 210 can be a polymer modified asphalt waterproof coating 210, thereby improving the waterproofness of the anti-seepage wall 1.

[0029] Reference Figure 3 As shown, in this embodiment: a sealing component 3 is arranged between the sealing cover 27 and the waterproof board 21, and the sealing component 3 includes an airbag 31 installed on the inner wall of the sealing cover 27, and a sealing ring 32 is fixedly connected to the arc surface of the airbag 31. The airbag 31 is filled with air to make it bulge, so that the sealing ring 32 is pushed to be inserted into the waterproof board 21, and then the sealing cover 27 is sealed. The sealing ring 32 is inserted into the waterproof board 21, and an air nozzle 33 is fixedly connected to the right end of the waterproof board 21. The air pump and the air nozzle 33 are connected, and the air pump is started to fill the airbag 31 with air. The air nozzle 33 and the airbag 31 are fixed, and a cover is provided on the surface of the air nozzle 33. The cover is opened, and the valve core in the air nozzle 33 is pressed to release the air in the airbag 31.

[0030] Working principle:

[0031] When building a gravity dam on a thick covering layer at the bottom of a river, a construction pit is dug in the thick covering layer, an anti-seepage wall 1 is built in the construction pit, and then a support column 5 is inserted, and the densified soil 4 is poured into the construction pit for compaction, and finally a gravity dam is built above the construction pit, thereby avoiding the problem that the foundation of the gravity dam built on the thick sand and gravel layer has insufficient bearing capacity, is prone to excessive deformation, and is prone to permeability. When it is necessary to pre-fix the waterproof board 21, the worker drags the waterproof board 21 so that the fixing column 22 is inserted into the fixing groove 23, so that the fixing groove 23 contacts the sliding surface 29, so that the latch 24 contracts. After the fixing column 22 is completely inserted into the fixing groove 23, the latch 24 is reset by setting a spring 211 so that it is inserted into the latch groove 25, thereby pre-fixing the waterproof board 21. Then, the waterproof board 21 is fixed to the anti-seepage wall 1 by nails, thereby avoiding the need for people to support the waterproof board 21 to be nailed into the anti-seepage wall 1 as much as possible, and the handle 28 is pulled to move the sealing cover 27, so that the pull rope 26 is pulled, and the pin 24 is retracted and separated from the slot 25, so that the waterproof board 21 is disassembled, and a waterproof coating 210 is provided. The waterproof coating 210 can be a polymer modified asphalt waterproof coating 210, so as to improve the waterproofness of the anti-seepage wall 1, and the air pump and the air nozzle 33 are connected, and the air pump is started to fill the air bag 31 with air to make it bulge, so that the sealing ring 32 is pushed into the waterproof board 21, and then the sealing cover 27 is sealed, and the lid is opened, and the valve core in the air nozzle 33 is pressed to release the air in the air bag 31.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A structure for building a gravity dam on a thick overburden, comprising an anti-seepage wall (1), characterized in that: A support column (5) is arranged at the left end of the anti-seepage wall (1), and densified soil (4) is arranged on both sides of the support column (5). A pre-fixed component (2) is arranged at the right end of the anti-seepage wall (1), and the pre-fixed component (2) comprises a waterproof plate (21) arranged at the right end of the anti-seepage wall (1). The waterproof plate (21) is a plastic plate, and one side of the waterproof plate (21) is fixedly connected to a fixing column (22). A fixing groove (23) is provided on the side of the anti-seepage wall (1) close to the fixing column (22), and clamping grooves (25) are provided on both sides of the inner wall of the fixing groove (23). Pins (24) are slidably inserted on both sides of the arc surface of the fixing column (22), and a sliding surface (29) is provided on one side of the pin (24).

2. The structure for building a gravity dam on a thick overburden layer according to claim 1, characterized in that: The lower end of the upper latch (24) is fixedly connected to a spring (211), and the other end of the spring (211) is fixed to the lower latch (24).

3. The structure for building a gravity dam on a thick overburden layer according to claim 2, characterized in that: A sealing cover (27) is slidably inserted into the right end of the waterproof plate (21), and a handle (28) is fixedly connected to the right end of the sealing cover (27).

4. The structure for building a gravity dam on a thick overburden layer according to claim 3, characterized in that: The lower end of the latch (24) is fixedly connected with a pull rope (26), the pull rope (26) passes through the fixed column (22), and the pull rope (26) and the sealing cover (27) are fixed.

5. The structure for building a gravity dam on a thick overburden layer according to claim 4, characterized in that: A waterproof coating (210) is provided on one side of the anti-seepage wall (1) close to the waterproof board (21).

6. The structure for building a gravity dam on a thick overburden layer according to claim 5, characterized in that: A sealing assembly (3) is provided between the sealing cover (27) and the waterproof plate (21), wherein the sealing assembly (3) comprises an air bag (31) mounted on the inner wall of the sealing cover (27), and a sealing ring (32) is fixedly connected to the arc surface of the air bag (31).

7. The structure for building a gravity dam on a thick overburden layer according to claim 6, characterized in that: The sealing ring (32) is inserted into the waterproof plate (21), and the right end of the waterproof plate (21) is fixedly connected with an air nozzle (33).

8. The structure for building a gravity dam on a thick overburden layer according to claim 7, characterized in that: The air nozzle (33) is fixed to the air bag (31), and a cover is provided on the surface of the air nozzle (33).

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