An emergency protection structure for the back slope of a dam

Abstract

The present application relates to the technical field of water conservancy engineering, and discloses an emergency protection structure for the back slope of a dam, comprising a wave-breaking wall and a composite material installed on the wave-breaking wall, and also comprising an installation box for placing the composite material, one end of the composite material in the length direction is fixedly installed in the installation box, the installation boxes are distributed in two rows along the height direction of the wave-breaking wall, and the two rows of the installation boxes are staggered, and the composite materials in the two rows of the installation boxes partially overlap when laid on the back slope. The present application can quickly lay the composite material.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy projects, and in particular to an emergency protection structure for a back slope of a dam. Background Art

[0002] Dams are an important part of water conservancy projects, and they undertake important functions such as water storage, flood control, and power generation. Once dangerous conditions occur on the back slope of the dam, such as landslides, pipe bursts, cracks, etc., they will directly threaten the overall safety of the dam. Therefore, emergency protection of the back slope can timely detect and eliminate these dangerous conditions, prevent the situation from deteriorating, and ensure the safe and stable operation of the dam.

[0003] The existing emergency protection structure for the back slope of the dam includes a wave-breaking wall, a hook, a back slope and an erosion-resistant and anti-seepage composite geotechnical material. The hook is arranged on the wave-breaking wall with the hook head facing the side of the front slope. The erosion-resistant and anti-seepage composite geotechnical material is provided with a hook hole. A plurality of erosion-resistant and anti-seepage composite geotechnical materials are continuously spliced ​​and laid on the wave-breaking wall and the back slope from left to right, and are hung on the hook through the hook hole. The hook can be locked by itself after the hanging is completed. An overlap of 20cm-25cm is provided between two adjacent erosion-resistant and anti-seepage composite geotechnical materials to form an overlapping area. A plurality of through holes are provided on the two erosion-resistant and anti-seepage composite geotechnical materials in the overlapping area at equal intervals along the length direction of the overlapping area. The two adjacent erosion-resistant and anti-seepage composite geotechnical materials are fixed together by passing stud bolts through the two overlapping through holes.

[0004] Regarding the above-mentioned related technologies, although the emergency protection structure is simple, the total area of ​​a piece of scour-resistant and anti-seepage composite geotextile is 5-10 square meters. In an emergency, it takes many people to pull and lay the scour-resistant and anti-seepage composite geotextile, and the overall time is relatively long. Utility Model Content

[0005] In order to shorten the laying time of anti-scour and anti-seepage composite geotechnical materials, the present application provides an emergency protection structure for the back slope of a dam.

[0006] The present application provides an emergency protection structure for the back slope of a dam, which adopts the following technical solution:

[0007] An emergency protection structure for a backwater slope of a dam comprises a wave-breaking wall and a composite material installed on the wave-breaking wall, and also comprises an installation box for placing the composite material, one end of the composite material in the length direction is fixedly installed in the installation box, the installation boxes are distributed in two rows along the height direction of the wave-breaking wall, and the two rows of the installation boxes are staggered, and the composite materials in the two rows of the installation boxes partially overlap when laid on the backwater slope.

[0008] By adopting the above technical solution, the emergency protection structure provides effective protection for the back slope of the dam through the effective combination of wave-breaking walls and composite materials. The composite materials can be quickly laid in an emergency through the installation of installation boxes, which improves the emergency response speed; the two rows of staggered installation boxes and the composite materials inside partially overlap during laying, forming an overlapping part, which enhances the integrity and stability of the protection structure and further improves the protection effect.

[0009] Optionally, a winding roller is rotatably installed in the installation box, and one end of the composite material is fixedly installed on the winding roller.

[0010] By adopting the above technical solution, a winding roller is rotatably installed in the installation box, and one end of the composite material is fixed on the winding roller. This design allows the composite material to be easily rolled up and released, which is convenient for management and maintenance. When laying is required, the composite material can be quickly released to improve emergency response efficiency; when not needed, the composite material can be rolled up to reduce occupied space.

[0011] Optionally, the installation box has an opening on one side close to the wave-breaking wall, and the wave-breaking wall is provided with a sealing plate for sealing the opening, and the installation box is in sliding contact with the sealing plate.

[0012] By adopting the above technical solution, an opening is provided on one side of the installation box close to the wave-breaking wall and is sealed by a sealing plate. This design allows the installation box to be quickly opened when needed, thereby facilitating the laying of the composite material. The sliding contact between the sealing plate and the installation box ensures the sealing effect of the opening, while also making the operation more flexible and convenient.

[0013] Optionally, a mounting plate is installed on the wave-breaking wall, the sealing plate and the mounting box correspond one to one, a guide groove is opened on the mounting plate, a guide block is installed on the mounting box, and the guide block slides in the guide groove.

[0014] By adopting the above technical solution, the one-to-one corresponding sealing plates and installation boxes ensure that each installation box has a corresponding sealing plate for sealing, and the installation box slides in the guide groove through the guide block. This design improves the stability and operation convenience of the installation box.

[0015] Optionally, a support rod for supporting the installation box is inserted into a side of the sealing plate close to the installation box, and the support rod is slidably mounted on the sealing plate.

[0016] By adopting the above technical solution, although the composite material in the installation box has a pulling effect on the installation box after being laid, making it difficult for the installation box to slide downward, this design allows the installation box to be supported by the support rod after sliding upward along the guide groove to open the opening, thereby preventing the installation box from suddenly falling due to gravity, thereby improving the safety of operation.

[0017] Optionally, a push rod is vertically installed at one end of the support rod, and the sealing plate is provided with a sliding groove for the push rod to extend out.

[0018] By adopting the above technical solution, it is convenient for a person to control one end of the support rod to slide into or out of the sealing plate.

[0019] Optionally, a connecting rod is connected between the two rows of installation boxes.

[0020] By adopting the above technical solution, the upper and lower installation boxes of the two rows of installation boxes can be operated as a whole.

[0021] Optionally, a pull rod is connected to the other end of the composite material, and a limit strip is installed at the opening to limit the pull rod from entering the installation box.

[0022] By adopting the above technical solution, the composite material can be easily pulled by pulling the pull rod, and the design of the limit strip prevents the composite material from completely entering the installation box during the process of the winding roller winding the composite material.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. The special installation box design and staggered distribution method enable the composite materials to be quickly and effectively laid on the back slope of the dam, forming overlapping parts to enhance the protective effect;

[0025] 2. The special installation box design and staggered distribution method enable the composite material to be quickly and effectively laid on the back slope of the dam, forming overlapping parts to enhance the protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is a schematic diagram of a top view of the structure of an embodiment of the present application;

[0028] Figure 3 is a schematic cross-sectional view of an installation box according to an embodiment of the present application;

[0029] Figure 4 It is a partial structural schematic diagram of an embodiment of the present application;

[0030] Figure 5 is a cross-sectional view showing the cooperation between the guide block and the guide groove in the embodiment of the present application;

[0031] Figure 6 is a schematic diagram of a support rod supporting a mounting box according to an embodiment of the present application;

[0032] Figure 7It is a schematic cross-sectional view of the installation box of an embodiment of the present application.

[0033] Explanation of the reference numerals in the accompanying drawings: 1. wave-breaking wall; 2. composite material; 3. mounting box; 31. guide block; 32. protrusion; 4. winding roller; 5. sealing plate; 51. slide groove; 6. mounting plate; 61. guide groove; 7. support rod; 71. push rod; 72. connecting rod; 8. connecting rod; 9. pull rod; 10. limit strip. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 This application is described in further detail.

[0035] The embodiment of the present application discloses an emergency protection structure for the back slope of a dam. The present application is further described below in conjunction with the accompanying drawings:

[0036] Example 1

[0037] Reference Figure 1 and Figure 2 This embodiment discloses an emergency protection structure for the back slope of a dam, including a wave-breaking wall 1 and a composite material 2 installed on the wave-breaking wall 1, wherein the composite material 2 is laid on the back slope. The emergency protection structure also particularly includes an installation box 3 for placing the composite material 2, wherein the installation box 3 is provided with an opening for the composite material 2 to be pulled out, wherein the opening is located on a side of the installation box 3 close to the wave-breaking wall 1, wherein one end of the composite material 2 in the length direction is fixedly installed in the installation box 3. These installation boxes 3 are distributed in two rows along the height direction of the wave-breaking wall 1, and the two rows of installation boxes 3 are staggered. When the composite materials 2 in the two rows of installation boxes 3 are laid on the back slope, they will partially overlap to form an overlapping portion. This design not only ensures full coverage of the composite material 2, but also enhances the protective effect through the overlapping portion.

[0038] In an emergency, it is necessary to quickly protect the backwater slope of the dam. By placing the composite material 2 in the installation box 3 in advance and fixing these installation boxes 3 on the wave-breaking wall 1 at a certain height and offset arrangement, the laying operation can be carried out quickly. Due to the offset distribution of the installation boxes 3, the composite materials 2 pulled out from two different heights can partially overlap on the backwater slope. This overlapping part provides a double layer of protection for the backwater slope, thereby greatly enhancing the reliability of the protection.

[0039] Reference Figure 3 A rotatably mounted winding roller 4 is further provided in the installation box 3, and one end of the composite material 2 is fixedly mounted on the winding roller 4. This design allows the composite material 2 to be released from the winding roller 4 when needed, and to be rolled up when not needed, which is convenient for storage and management.

[0040] In normal conditions, the composite material 2 is rolled up on the winding roller 4, which saves space and is protected. Once emergency laying is required, the composite material 2 only needs to be pulled out from the winding roller 4 and then fixed on the backwater slope. This fast retracting and releasing mechanism greatly shortens the emergency response time and improves work efficiency.

[0041] Reference Figure 3 and Figure 4 The wave-breaking wall 1 is provided with a sealing plate 5 for sealing the opening, and the sealing plate 5 corresponds to the installation box 3 one by one. The sealing plate 5 can seal the opening when not in use, thereby protecting the composite material 2 inside the installation box 3 from erosion by the outside world such as water flow, wind and sand, etc. At the same time, the installation box 3 is in sliding contact with the sealing plate 5, which allows the installation box 3 to slide along the wave-breaking wall 1 when needed, so that the composite material 2 can be pulled out of the installation box 3 from the opening.

[0042] Reference Figure 4 Furthermore, a mounting plate 6 is installed on the wave-breaking wall 1, and a guide groove 61 is provided on the mounting plate 6 between each sealing plate 5 and the corresponding mounting box 3, and the guide groove 61 is vertically arranged. At the same time, guide blocks 31 are installed at both ends of the length direction of the mounting box 3, and the guide groove 61 corresponds to the guide block 31 one by one, and the guide block 31 can slide in the guide groove 61. When the guide block 31 abuts against the bottom end of the guide groove 61, the opening of the mounting box 3 is in a closed state. Such a design ensures the stability and accuracy of the mounting box 3 during the sliding process, and prevents it from being offset or tilted.

[0043] Reference Figure 5 The portion of the guide block 31 inserted into the guide groove 61 is provided with a protrusion 32 , and the guide groove 61 is provided with a clearance groove according to the protrusion 32 of the guide block 31 , so that the installation box 3 can only slide up and down along the guide groove 61 .

[0044] In normal state, the installation box 3 is acted upon by gravity, the guide block 31 abuts against the bottom end of the guide groove 61, and the opening of the installation box 3 is blocked by the sealing plate 5. Once emergency laying is required, the installation box 3 is slid upward, the installation box 3 and the sealing plate 5 are separated from each other, the opening is opened, and the composite material 2 can be pulled out.

[0045] Reference Figure 6In this embodiment, a support rod 7 is further inserted on one side of the sealing plate 5 close to the installation box 3. The support rod 7 is slidably installed on the sealing plate 5, and one end of the support rod 7 extends out of or slides into the sealing plate 5. When the installation box 3 leaves the sealing plate 5, the support rod 7 can be slid out, so that the bottom of the installation box 3 abuts against the end of the support rod 7 extending out of the sealing plate 5. The support rod 7 can provide a stable supporting force for the installation box 3 to ensure that it can remain stable when subjected to external forces such as water flow impact. In addition, a push rod 71 is vertically installed at one end of the support rod 7, and a slide groove 51 is provided on the upper surface of the sealing plate 5 for the push rod 71 to extend out. By pushing the push rod 71, the position of the support rod 7 can be conveniently adjusted.

[0046] Reference Figure 4 Two support rods 7 are installed on a sealing plate 5, and a connecting rod 72 is connected between the two support rods 7.

[0047] Reference Figure 4 In order to allow the two rows of installation boxes 3 to be supported by the support rods 7 in a short time, a connecting rod 8 is connected between the two rows of installation boxes 3. When the upper row of installation boxes 3 slides upward, the lower row of installation boxes 3 can slide upward together. When the upper row of installation boxes 3 is supported by the support rods 7, the lower row of installation boxes 3 can maintain a stable state and will not continue to slide downward.

[0048] Reference Figure 7 Since one end of the composite material 2 is fixedly mounted on the winding roller 4, a pull rod 9 is fixedly arranged at the other end of the composite material 2, and a limiting strip 10 for limiting the pull rod 9 from entering the mounting box 3 is installed at the opening of the mounting box 3. After the winding roller 4 winds up the composite material 2, the pull rod 9 does not enter the mounting box 3, and the pull rod 9 abuts against the limiting strip 10, which makes it convenient for people to pull the composite material 2 again later.

[0049] It should be noted that the composite material 2 mentioned in the full text is made of three layers of materials, PET cloth, geomembrane and geotextile, which are extruded at high temperature. It has the advantages of resisting high-speed water flow erosion, preventing seepage, protecting the dam foundation and preventing soil and stone.

[0050] This application mainly solves how to quickly lay the composite material 2, and how to fix the composite material 2 on the back slope of the dam after laying, or whether to fix it using existing technology. For example, studs can be passed through the two overlapping composite materials 2 to fix the overlapping part, and sealing rings are provided between the studs and the two layers of anti-scour and anti-seepage composite geotechnical materials to reduce the occurrence of water seepage. The embodiments of this application will not be described in detail.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An emergency protection structure for the back slope of a dam, characterized in that: The invention comprises a wave-breaking wall (1) and a composite material (2) installed on the wave-breaking wall (1), and also comprises an installation box (3) for placing the composite material (2), one end of the composite material (2) in the length direction is fixedly installed in the installation box (3), the installation boxes (3) are arranged in two rows along the height direction of the wave-breaking wall (1), and the two rows of the installation boxes (3) are staggered, and the composite materials (2) in the two rows of the installation boxes (3) partially overlap when laid on the back slope.

2. The emergency protection structure for the back slope of a dam according to claim 1, characterized in that: A winding roller (4) is rotatably mounted in the mounting box (3), and one end of the composite material (2) is fixedly mounted on the winding roller (4).

3. The emergency protection structure for the back slope of a dam according to claim 2, characterized in that: The installation box (3) is provided with an opening on a side close to the wave-breaking wall (1), the wave-breaking wall (1) is provided with a sealing plate (5) for sealing the opening, and the installation box (3) is in sliding contact with the sealing plate (5).

4. The emergency protection structure for the back slope of a dam according to claim 3, characterized in that: The wave-breaking wall (1) is provided with a mounting plate (6), the sealing plate (5) and the mounting box (3) correspond one to one, the mounting plate (6) is provided with a guide groove (61), the mounting box (3) is provided with a guide block (31), and the guide block (31) slides in the guide groove (61).

5. The emergency protection structure for the back slope of a dam according to claim 4, characterized in that: A support rod (7) for supporting the installation box (3) is inserted into a side of the sealing plate (5) close to the installation box (3), and the support rod (7) is slidably mounted on the sealing plate (5).

6. The emergency protection structure for the back slope of a dam according to claim 5, characterized in that: A push rod (71) is vertically mounted on one end of the support rod (7), and the sealing plate (5) is provided with a sliding groove (51) for the push rod (71) to extend out.

7. The emergency protection structure for the back slope of a dam according to claim 5, characterized in that: A connecting rod (8) is connected between the two rows of installation boxes (3).

8. The emergency protection structure for the back slope of a dam according to claim 3, characterized in that: The other end of the composite material (2) is connected to a pull rod (9), and a limit strip (10) is installed at the opening to limit the pull rod (9) from entering the installation box (3).

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