Water stop structure suitable for upper gate space of high gate with deep and thick covering layer

Abstract

The utility model discloses a water stop structure suitable for an upper gate room of a high gate with a deep and thick covering layer in the technical field of engineering water stop, which comprises a plurality of gate plates, a structural seam is arranged between two adjacent gate plates, the structural seam is communicated with a water stop cavity, and a water stop device is filled in the water stop cavity. The water stop device comprises a first mortar layer, a flexible filler layer and a second mortar layer which are sequentially filled in the structural joint from top to bottom, a copper sheet water stop assembly and a water stop belt assembly are arranged on the flexible filler layer in a penetrating mode at intervals, the overall structure is large in flexibility effect, the function of adapting to large uneven deformation between adjacent gate sections can be achieved, damage is not prone to occurring, and the service life of the water stop device is prolonged. Therefore, safe operation of the water gate structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of water-stopping technology in hydropower engineering, and in particular to a water-stopping structure suitable for the upper gate of a high gate with a thick overburden layer. Background Technology

[0002] Many rivers have deep overburden layers, some reaching depths of several hundred meters. These layers are complex, containing sand, silt, and sand lenses, each with varying properties. This results in numerous challenges for foundations with deep overburden layers, including low bearing capacity, uneven deformation, and poor sliding stability. In the event of a high-intensity earthquake, uneven settlement of the sluice gate foundation is a key factor restricting the construction of sluice gates with deep overburden layers.

[0003] To address uneven settlement of the dam foundation, the common practice in China is to install settlement joints, dividing the dam into segments and reducing the differential settlement of the foundation between the dam chambers. However, due to the complex structure and varying characteristics of the thick overburden layer, uneven deformation stress often occurs between different dam sections. This stress leads to uneven settlement of the dam structure. When the settlement exceeds a certain value, it will damage the water-stopping structure. Especially during earthquakes or periods of significant water level changes, it will directly affect the integrity and stability of the dam.

[0004] Patent document CN208088236U discloses a water-stopping system that prevents seepage and resists structural displacement deformation. It mainly includes a joint-filling structure, a water-stopping structure, a gate wall, and reinforcing devices. The gate wall is a water-facing gate wall with joints. The joint-filling structure is installed at the joints of the gate wall to seal the joints and connect the gate wall. The water-stopping structure is installed at any position between the two extremes of the joint-filling structure. The water-stopping structure is an asphalt sand column, shaped into a polygonal columnar three-dimensional structure, achieving the functions of preventing seepage and resisting displacement deformation of structures on both sides. However, the water-stopping system in the above technical solution has poor flexibility. When the settlement value exceeds a certain value, it cannot stably act on the uneven deformation and displacement between adjacent gate sections caused by factors such as water load, seismic load, and dam foundation settlement deformation. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to improve the poor flexibility of the existing water-stopping system in order to improve the water-stopping performance.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A water-stopping structure suitable for the upper gate of a high gate with a thick overburden layer includes multiple gate bottom plates, with a structural joint of a certain thickness between two adjacent gate bottom plates. The structural joint is connected to a water-stopping cavity, which is filled with a water-stopping device. The water-stopping device includes a first mortar layer, a flexible filler layer, and a second mortar layer filled in the structural joint. A copper sheet water-stopping component and a rubber water-stopping strip component are provided between the flexible filler layers.

[0008] Furthermore, the structural joints are filled with polyethylene foam boards.

[0009] Furthermore, the copper sheet waterproofing assembly includes a double-nose copper sheet structure.

[0010] Furthermore, the thickness of the double-nose copper sheet structure is 1.5 mm.

[0011] Furthermore, the waterstop assembly includes a corrugated rubber waterstop.

[0012] Furthermore, both the first mortar layer and the second mortar layer are made of asphalt.

[0013] Furthermore, the flexible filler layer includes GB flexible filler material.

[0014] Furthermore, the extension directions of the copper sheet waterstop assembly and the waterstop strip assembly are both perpendicular to the extension direction of the structural joint.

[0015] Furthermore, the size of the water-stopping cavity is larger than the size of the structural joint.

[0016] Furthermore, the water-stopping cavity includes a first cavity, a second cavity, and a third cavity that are connected to each other. The cross-sectional profiles of the first cavity and the third cavity are both isosceles triangles, and the cross-sectional profile of the second cavity is rectangular. The first cavity is filled with the first mortar layer, the second cavity is filled with a flexible filler layer, and the third cavity is filled with a second mortar layer.

[0017] The beneficial effects of this utility model are:

[0018] By superimposing and cooperating the first mortar layer, the second mortar layer, the flexible filler layer, the copper sheet waterstop component, and the rubber waterstop component, the waterstop performance of the entire structure is further improved on the basis of enhancing the flexibility effect. It can adapt to large uneven deformation between adjacent gate sections and is not easily damaged, thereby achieving the purpose of ensuring the safe operation of the sluice gate structure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] The diagram is labeled as follows: 1-gate bottom plate, 2-first mortar layer, 3-flexible filler layer, 4-second mortar layer, 5-polyethylene foam board, 6-rubber waterstop assembly, 7-copper sheet waterstop assembly. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] according to Figure 1 As shown in the embodiment of this application, a water-stopping structure suitable for the upper gate of a high gate with a thick overburden layer is proposed, including multiple gate bottom plates 1, with a structural joint between two adjacent gate bottom plates 1, and a water-stopping cavity connected by the structural joint, the water-stopping cavity being filled with a water-stopping device; the water-stopping device includes a first mortar layer 2, a flexible filler layer 3 and a second mortar layer 4 filled in the structural joint, and a copper sheet water-stopping component 7 and a rubber water-stopping strip component 6 are interspersed in the flexible filler layer 3.

[0023] First of all, it should be stated that by superimposing and cooperating the first mortar layer 2, the second mortar layer 4, the flexible filler layer 3, the copper sheet water-stop component 7, and the water-stop belt component 6, the water-stopping performance of the entire structure is further improved on the basis of enhancing the flexibility effect. It can adapt to large uneven deformation between adjacent gate sections and is not easily damaged, thereby achieving the purpose of ensuring the safe operation of the sluice gate structure.

[0024] Specifically, the size of the aforementioned water-stopping cavity is larger than the size of the structural joint. That is, the structural joint is divided into two segments by the water-stopping cavity in the middle, and the width of the water-stopping cavity is greater than the width of the structural joint. This ensures that sufficient amounts of the first mortar layer 2, the flexible filler layer 3, and the second mortar layer 4 can be filled into the water-stopping cavity. Furthermore, the water-stopping cavity includes a first cavity, a second cavity, and a third cavity connected sequentially from top to bottom. The cross-sectional profiles of the first and third cavities are both isosceles triangles, and the cross-sectional profile of the second cavity is rectangular. The first cavity is filled with the first mortar layer 2, the second cavity is filled with the flexible filler layer 3, and the third cavity is filled with the second mortar layer 4. Both the first mortar layer 2 and the second mortar layer 4... Made of asphalt, it ensures good filling and sealing performance and function; that is, the first mortar layer 2 and the second mortar layer 4 of the first cavity and the third cavity will have a flexible filler layer 3 with a rectangular cross-sectional shape. The flexible filler layer 3 includes GB flexible filler material, which has excellent seepage prevention, corrosion resistance and oxidation resistance. It can protect the caulking position from the erosion and damage of the external environment and is suitable for uneven settlement deformation greater than 50mm. The GB flexible filler material can fill the gaps caused by deformation after water stop. The first mortar layer 2 and the second mortar layer 4 can limit the leakage of GB flexible filler material, which can greatly increase the bearing capacity of uneven settlement of the gate foundation between adjacent gate sections and ensure that the sluice gate can operate normally under the condition of large uneven deformation.

[0025] The structural joint is filled with polyethylene foam board 5, which can further improve the water-stopping effect of the sluice gate under conditions of large uneven deformation. Moreover, the copper sheet water-stopping component 7 and the water-stopping strip component 6 are spaced apart in the flexible filler layer 3 to form a stable water-stopping isolation structure. The multiple water-stopping isolation structures can effectively improve the water-stopping performance of the entire structure. The extension direction of the copper sheet water-stopping component 7 and the water-stopping strip component 6 is perpendicular to the extension direction of the structural joint, which enhances the water-stopping effect of the copper sheet water-stopping component 7 and the water-stopping strip component 6.

[0026] The copper sheet waterproofing component 7 includes a double-nose copper sheet structure with a thickness of 1.5mm. Copper has excellent corrosion resistance in natural environments and can be used in water for a long time without being corroded, ensuring a long-lasting waterproof effect. The copper sheet usually has two continuous semi-circular protrusions (shaped like noses) in the middle, which are referred to as the double-nose copper sheet structure in this embodiment. This structure can effectively adapt to the expansion and contraction deformation of the joint, and at the same time enhance the waterproof effect through multiple layers of blocking. The two protrusions form multiple waterproofing lines, improving the sealing performance of the joint.

[0027] In addition, the waterstop assembly 6 includes a corrugated rubber waterstop, also known as a wave-shaped or corrugated rubber waterstop, which can closely fit the changes in the joint, thereby effectively improving the sealing effect and enhancing the water leakage prevention performance.

[0028] In summary, this utility model proposes a water-stopping structure suitable for the upper gate section of a high sluice gate with a thick overburden layer. It includes multiple gate bottom plates 1, with a structural joint between two adjacent gate bottom plates 1. The structural joint is connected to a water-stopping cavity, which is filled with a water-stopping device. The water-stopping device includes a first mortar layer 2, a flexible filler layer 3, and a second mortar layer 4, which are filled sequentially from top to bottom in the structural joint. The flexible filler layer 3 is interspersed with copper sheet water-stopping components 7 and water-stopping strip components 6. The overall structure has a large flexibility effect, which can adapt to large uneven deformation between adjacent gate sections and is not easily damaged, thereby achieving the purpose of ensuring the safe operation of the sluice gate structure.

Claims

1. A water-stopping structure suitable for deep overburden high sluices, comprising a plurality of sluice bottom plates (1), a structural gap with a width is provided between two adjacent sluice bottom plates (1), a water-stopping cavity is provided in communication, and a water-stopping device is filled and arranged in the water-stopping cavity; characterized in that, The water-stopping device includes a first mortar layer (2), a flexible filler layer (3) and a second mortar layer (4) that are filled in the structural joint from top to bottom. The flexible filler layer (3) is provided with copper sheet water-stopping components (7) and rubber water-stopping belt components (6) at intervals.

2. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, The structural joints are filled with polyethylene foam boards (5).

3. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, The copper sheet water-stopping assembly (7) includes a double-nose copper sheet structure.

4. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 3, characterized in that, The thickness of the double-nose copper sheet structure is 1.5 mm.

5. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, The waterstop assembly (6) includes a corrugated rubber waterstop.

6. The water-stopping structure applicable to the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, Both the first mortar layer (2) and the second mortar layer (4) are made of asphalt mortar.

7. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, The flexible filler layer (3) includes GB flexible filler material.

8. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, The extension directions of the copper sheet waterstop assembly (7) and the rubber waterstop assembly (6) are both perpendicular to the extension direction of the structural joint.

9. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 1, characterized in that, The size of the water-stopping cavity is larger than the size of the structural joint.

10. The water-stopping structure suitable for the upper gate of a high sluice gate with a thick overburden layer according to claim 9, characterized in that, The water-stopping cavity includes a first cavity, a second cavity, and a third cavity connected in sequence. The cross-sectional profiles of the first cavity and the third cavity are both isosceles triangles, and the cross-sectional profile of the second cavity is rectangular. The first cavity is filled with the first mortar layer (2), the second cavity is filled with a flexible filler layer (3), and the third cavity is filled with a second mortar layer (4).

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