Water conservancy dam anti-permeation structure

Abstract

The utility model belongs to the technical field of water conservancy dams, and particularly relates to a water conservancy dam anti-seepage structure which comprises an anti-seepage film, a bottom balancing weight, a first balancing weight, a second balancing weight and a top slope pressing block. A bottom balancing weight is installed at the bottom of the upper portion of the impermeable film, a first balancing weight is installed at the top of the bottom balancing weight, a plurality of second balancing weights are installed above the first balancing weight in a stacked mode, and top slope pressing blocks are installed at the tops of the second balancing weights. The water conservancy dam anti-seepage structure is composed of an anti-seepage film, a bottom balancing weight, a first balancing weight, a second balancing weight and a top slope pressing block, an inner-layer anti-seepage structure can be formed through the use of the anti-seepage film, and an outer-layer anti-seepage structure can be formed through the use of the bottom balancing weight, the first balancing weight, the second balancing weight and the top slope pressing block. And the anti-seepage film can be protected, and use of the water conservancy dam anti-seepage structure is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy dam technology, specifically relating to a seepage prevention structure for water conservancy dams. Background Technology

[0002] Water conservancy dams are important water conservancy engineering facilities used for flood control, water storage, water flow regulation, or protection of coastal areas. They are widely used in rivers, lakes, coastlines, and other areas.

[0003] Currently, common water conservancy dams can be divided into earth-rock dams and concrete dams. Pouring concrete on the surface of an earth-rock dam can improve its seepage prevention performance. However, as river water erodes the concrete, the surface concrete is prone to damage. At this time, river water can seep into the interior of the water conservancy dam and corrode the internal structure, resulting in limited seepage prevention effect. Based on this, this utility model provides a seepage prevention structure for water conservancy dams. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a seepage-proof structure for hydraulic dams, which has the advantage of good performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a seepage-proof structure for a hydraulic dam, comprising a seepage-proof membrane, a bottom counterweight, a first counterweight, a second counterweight, and a top slope pressure block; a bottom counterweight is installed at the bottom above the seepage-proof membrane, a first counterweight is installed at the top of the bottom counterweight, several second counterweights are stacked on top of the first counterweight, and a top slope pressure block is installed at the top of the second counterweights.

[0006] As a preferred technical solution for the seepage prevention structure of a water conservancy dam according to this utility model, an inclined protrusion is provided on one side of the top of the bottom counterweight block, and a positioning groove is inclinedly provided on one side of the inclined protrusion. The cross-sectional dimensions of the positioning groove are the same as the cross-sectional dimensions of the first counterweight block.

[0007] As a preferred technical solution for the seepage prevention structure of a hydraulic dam according to this utility model, a groove is provided at the center of the top of the first counterweight block.

[0008] As a preferred technical solution for the seepage prevention structure of a hydraulic dam according to this utility model, a second groove is provided at the top center of the second counterweight block, and a first protrusion is provided at the bottom center of the second counterweight block.

[0009] As a preferred technical solution for the seepage prevention structure of a hydraulic dam according to this utility model, the longitudinal cross-sectional shape of the top slope pressure block is an outwardly folded L-shape, and a second protrusion is provided at the middle of the bottom end of the top slope pressure block.

[0010] As a preferred technical solution for the seepage prevention structure of a water conservancy dam according to this utility model, the longitudinal cross-sectional dimensions of the first groove and the second groove are the same, the longitudinal cross-sectional dimensions of the first protrusion and the second protrusion are the same, the first protrusion and the first groove are compatible, and the second protrusion and the second groove are compatible.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The seepage prevention structure of this water conservancy dam consists of a seepage prevention membrane, a bottom counterweight, a first counterweight, a second counterweight, and a top slope ballast. The seepage prevention membrane forms the inner seepage prevention structure, while the bottom counterweight, the first counterweight, the second counterweight, and the top slope ballast form the outer seepage prevention structure and protect the seepage prevention membrane, thus facilitating the use of the seepage prevention structure of this water conservancy dam. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is an installation effect diagram of the present invention;

[0015] Figure 2 This utility model Figure 1 Schematic diagram of the structure of region A in the middle;

[0016] Figure 3 This is an exploded view of the installation of the geomembrane of this utility model;

[0017] Figure 4 This is an exploded view of the installation of the No. 2 counterweight of this utility model.

[0018] In the diagram: 1. Geomembrane; 2. Bottom counterweight; 3. Counterweight No. 1; 4. Counterweight No. 2; 5. Top slope pressure block; 6. Inclined protrusion; 7. Positioning slot; 8. Groove No. 1; 9. Protrusion No. 1; 10. Groove No. 2; 11. Protrusion No. 2. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figures 1-4 The present invention provides the following technical solution: a seepage prevention structure for a water conservancy dam, comprising a seepage prevention membrane 1, a bottom counterweight 2, a first counterweight 3, a second counterweight 4, and a top slope pressure block 5;

[0021] A bottom counterweight 2 is installed above the geomembrane 1. An inclined protrusion 6 is provided on one side of the top of the bottom counterweight 2. A positioning groove 7 is inclined on one side of the protrusion 6. A first counterweight 3 is installed inside the positioning groove 7. The cross-sectional dimensions of the positioning groove 7 are the same as those of the first counterweight 3, allowing for positioning and limiting of the first counterweight 3. A first groove 8 is provided in the middle of the top of the first counterweight 3. Several second counterweights 4 are stacked and installed above the first counterweight 3. A second groove 10 is provided in the middle of the top of each second counterweight 4. A first protrusion is provided in the middle of the bottom of each second counterweight 4. 9. A top slope pressure block 5 is installed on the top of the second counterweight block 4. The longitudinal cross-sectional shape of the top slope pressure block 5 is an outwardly folded L-shape. A second protrusion 11 is set in the middle of the bottom end of the top slope pressure block 5. The longitudinal cross-sectional dimensions of the first groove 8 and the second groove 10 are the same. The longitudinal cross-sectional dimensions of the first protrusion 9 and the second protrusion 11 are the same. The first protrusion 9 and the first groove 8 are compatible with each other, and the second protrusion 11 and the second groove 10 are compatible with each other, which facilitates the splicing and installation between the second counterweight block 4 and the bottom counterweight block 2, between the two second counterweight blocks 4, and between the top slope pressure block 5 and the second counterweight block 4.

[0022] Working principle and usage process of this utility model:

[0023] As per the instruction manual Figure 1 Included with instruction manual Figure 3 As shown, workers excavated a foundation pit at the bottom of the inner side of the water conservancy dam, near the downslope of the dam, and excavated an embedding groove at the top of the dam. Then, workers laid a geomembrane 1 inside the embedding groove and the foundation pit. After laying the geomembrane 1, workers installed a bottom counterweight 2 inside the foundation pit. The bottom counterweight 2 was used to press the bottom of the geomembrane 1 firmly. After installing the bottom counterweight 2, the user installed a first counterweight 3 on top of the bottom counterweight 2. After installing the first counterweight 3, the user then installed... There are several No. 2 counterweights 4. The number of No. 2 counterweights 4 installed is determined according to the slope height of the water conservancy dam. Then, the user installs the top slope pressure block 5 on top of the No. 2 counterweights 4. Through the use of No. 1 counterweights 3, No. 2 counterweights 4 and top slope pressure blocks 5, the geomembrane 1 can be further compressed, which is convenient for the installation and use of the geomembrane 1. In addition, through the use of the bottom counterweights 2, No. 1 counterweights 3, No. 2 counterweights 4 and top slope pressure blocks 5, an outer seepage prevention layer can be formed, which can protect the geomembrane 1 and facilitate the use of the seepage prevention structure of the water conservancy dam.

[0024] It should be noted that geomembrane 1 can be made of geomembrane or composite geomembrane material;

[0025] It should be noted that during the assembly process, bottom counterweight 2, first counterweight 3, second counterweight 4 and top slope pressure block 5 need to be bonded and fixed with anti-seepage materials (such as cement grout or chemical grout).

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A seepage-proof structure for hydraulic dams, characterized in that: It includes a geomembrane (1), a bottom counterweight (2), a first counterweight (3), a second counterweight (4), and a top slope ballast (5); A bottom counterweight (2) is installed at the bottom of the geomembrane (1), a first counterweight (3) is installed on the top of the bottom counterweight (2), several second counterweights (4) are installed on the pile above the first counterweight (3), and a top slope pressure block (5) is installed on the top of the second counterweight (4).

2. The seepage-proof structure for a hydraulic dam according to claim 1, characterized in that: The bottom counterweight (2) has an inclined protrusion (6) on one side of its top end, and a positioning slot (7) is inclined on one side of the inclined protrusion (6). The cross-sectional dimensions of the positioning slot (7) are the same as those of the first counterweight (3).

3. The seepage-proof structure for a hydraulic dam according to claim 1, characterized in that: The first counterweight (3) has a first groove (8) at the top center.

4. The seepage-proof structure for a hydraulic dam according to claim 3, characterized in that: The second counterweight (4) has a second groove (10) at the top center and a first protrusion (9) at the bottom center.

5. The seepage-proof structure for a hydraulic dam according to claim 4, characterized in that: The longitudinal cross-sectional shape of the top slope pressure block (5) is an outwardly folded L-shape, and a second protrusion (11) is provided at the middle of the bottom end of the top slope pressure block (5).

6. The seepage-proof structure for a hydraulic dam according to claim 5, characterized in that: The longitudinal cross-sectional dimensions of the first groove (8) and the second groove (10) are the same. The longitudinal cross-sectional dimensions of the first protrusion (9) and the second protrusion (11) are the same. The first protrusion (9) and the first groove (8) are compatible with each other. The second protrusion (11) and the second groove (10) are compatible with each other.

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