A seepage drainage system for earth-rock dam

Abstract

The present invention proposes a drainage system for an earth-rock dam, including a dam body and a drainage ditch, wherein the drainage ditch is arranged at the bottom of the downstream side of the dam body, a concrete wall is cast between the upstream side of the dam body and the downstream side of the dam body, a plurality of rows of clamping holes are opened on the downstream side of the dam body, and plug holes are opened on both sides of the downstream side of the dam body, into which anti-osmosis plates are inserted, and a plurality of water holes are evenly distributed on the anti-osmosis plates, and the water holes are connected with the clamping holes; a water-repellent layer is detachably connected to the downstream side of the dam body, the back of the water-repellent layer is filled with a drainage body, and a bending pipe is detachably connected to the front of the water-repellent layer, and a plurality of drainage holes are evenly distributed on the bending pipe, and a plurality of drainage holes are opened on the platform on the downstream side of the drainage ditch, and a filter screen is detachably connected to the drainage hole. By setting the anti-osmosis plate, the water-repellent layer and the drainage ditch, the present application can efficiently and quickly collect the pore water of the dam body, and can also quickly discharge the pore water out of the dam body; by setting the drainage ditch, it is convenient for construction personnel to observe the changes in water quality, and it is convenient for the dam body to be inspected and repaired later.

Description

Technical Field

[0001] The invention relates to the technical field of earth-rock dams, and in particular to a seepage drainage system for earth-rock dams. Background Art

[0002] An earth-rock dam generally refers to a water retaining dam built by dumping, rolling and other methods using local soil, stone or mixed materials. When the dam body is mainly made of soil and gravel, it is called an earth dam; when it is mainly made of slag, pebbles and blasted stones, it is called a rockfill dam; when both types of local materials account for a considerable proportion, it is called an earth-rock mixed dam. Earth-rock dams are the oldest type of dam. Modern earth-rock dam construction technology has been developed since the 1950s and has led to the construction of a number of high dams. At present, earth-rock dams are the most widely used and fastest-growing type of dam in the world's dam construction. Earth-rock dams are often classified according to dam height and construction methods. Or classification of dam materials, earth-rock dams are divided into high, medium and low. Earth-rock dams can be divided into low dams, medium dams and high dams according to the dam height. The dam with a height below 30m is a low dam; the dam with a height between 30 and 70m is a medium dam; the dam with a height of more than 70m is a high dam. Earth-rock dams can be divided into the following according to their construction methods: rolled earth-rock dam; flushing earth-rock dam; underwater earth-fill dam and directional blasting rockfill dam, etc. However, the current earth-rock dam is inconvenient to install during construction, the anti-seepage function inside the dam body is poor, the stability and strength inside the earth-rock dam are low, and it is not convenient for construction personnel to overhaul in the later stage. Therefore, a drainage system for earth-rock dam is needed. Summary of the invention

[0003] The object of the present invention is to provide an earth-rock dam seepage drainage system, which can efficiently and quickly collect pore water in the dam body and can also quickly discharge the pore water out of the dam body.

[0004] The embodiment of the present application provides a drainage system for an earth-rock dam, comprising: a dam body and a drainage ditch, wherein the lower surface of the dam body is fixed to the upper part of the bottom soil, the drainage ditch is arranged at the bottom of the downstream side of the dam body, a concrete wall is cast between the upstream side of the dam body and the downstream side of the dam body, a plurality of rows of clamping holes are opened on the downstream side of the dam body, plug holes are opened on both sides of the downstream side of the dam body, a reverse osmosis plate is inserted into the plug hole, a plurality of water holes are evenly distributed on the reverse osmosis plate, and the water holes are connected to the clamping holes;

[0005] The downstream side of the dam body is detachably connected to a water-repellent layer, the interior of the water-repellent layer is filled with a drainage body, the front of the water-repellent layer is detachably connected to a bending pipe, a plurality of drainage holes are evenly distributed on the bending pipe, a plurality of drainage holes are opened on the platform on the downstream side of the drainage ditch, a filter screen is detachably connected to the drainage hole, and the filter screen is used to filter debris.

[0006] This application can efficiently and quickly collect the pore water in the dam body and quickly discharge the pore water out of the dam body by setting up anti-seepage plates, water-repellent layers and drainage ditches; by setting up drainage ditches, it is convenient for construction personnel to observe changes in water quality and facilitate later inspection and maintenance of the dam body.

[0007] This application can accelerate the consolidation of the dam body, improve the strength of the dam body, and improve the stability of the earth-rock dam by setting up a concrete wall, while also preventing water from penetrating to the downstream side of the dam body.

[0008] The anti-water layer provided in the present application can prevent the protected soil of the dam body or dam foundation from precipitating out with the seepage water, and can also ensure the smooth outflow of pore water.

[0009] In some embodiments, a row of blocks is fixed between every two adjacent rows of holes, a limiting column is fixed on the front of each block, the water-repellent layer is connected to the downstream side of the dam body through the blocks and the limiting column, and the limiting column is connected to the inner wall of the water-repellent layer.

[0010] The present application provides limit columns and blocks, which can clamp the water-repellent layer on the surface of the blocks and the limit columns. The limit columns and blocks can increase the friction of the water-repellent layer to prevent the water-repellent layer from sliding, and are also convenient for construction workers to disassemble and assemble.

[0011] In some embodiments, the bent pipe is fixedly connected to the water-repellent layer by a buckle, which is convenient for construction workers to disassemble and assemble.

[0012] In some embodiments, the bent pipe is formed by connecting a plurality of vertically arranged S-shaped pipes to each other to form a baffle structure. The radiation area of ​​the bent pipe is wider than that of other drainage methods, making it easier for water to penetrate out.

[0013] In some embodiments, the longitudinal section of the bending tube is provided with drainage holes around it, wherein the bending tube is provided with drainage holes at the joint between the bending tube and the downstream side of the dam body, so that the water seeping from the downstream side of the dam body enters the bending tube through the drainage holes, and then flows from top to bottom along the bending tube to the bottom of the dam body. By providing the bending tube, the present application can make the seepage water of the dam body flow downward along the bending tube in a circuitous manner, so that the seepage water is dispersed, and prevent the seepage water from being concentrated in a certain place, causing the seepage point to become larger and larger.

[0014] In some embodiments, a plurality of drainage grooves for draining water are provided on the upstream side of the drainage ditch.

[0015] In some embodiments, a frame is fixed around the filter screen, and the frame is fixed to the platform on the downstream side of the drain ditch by bolts. The present application installs the filter screen on the downstream side of the drain ditch to filter impurities in the water and prevent the impurities from clogging the filter screen.

[0016] In some embodiments, the frame includes two first limiting plates arranged in parallel and two second limiting plates arranged in parallel, and fastening plates are fixed on both sides of each first limiting plate, and the fastening plates are fixed to the platform on the downstream side of the drainage ditch by bolts.

[0017] In some embodiments, on the platform on the downstream side of the drainage ditch, limiting grooves are opened on the front and rear sides of the drainage hole, and two first limiting plates are inserted into the limiting grooves.

[0018] In some embodiments, a water-permeable lawn layer is fixedly connected to the top of the water-repellent layer, and the lawn layer is connected to the inside of the water-repellent layer, so as to absorb a part of the external rainwater and minimize the impact of rainwater on the water-repellent layer and the dam body.

[0019] In some embodiments, the drainage body is a sand and gravel filler. It plays a supporting role for the entire water-repellent layer, and also improves the water-repellent performance of the water-repellent layer. It can also play a filtering role, blocking the mud mixed with the seepage water, making the seepage water passing through the drainage body clearer, and the mud left in the drainage body can improve the stability of the drainage body. The drainage body can be made of local materials according to the actual local conditions, and is not limited to sand and gravel fillers, but can also be concrete, etc.

[0020] In some embodiments, both ends of the buckle are fixed to the water-repellent layer by means of limiting bolts, the limiting bolts are detachable, and one end of the limiting bolts passes through the buckle and is threadedly disposed on the inner wall of the water-repellent layer.

[0021] In some embodiments, the plug hole extends from the upper part of the downstream side of the dam body to the downstream side of the drainage ditch, and the anti-osmosis plates are correspondingly provided with multiple pieces spliced ​​together. The anti-osmosis plates located at the drainage ditch are used to infiltrate a small part of the water in the drainage ditch downward into the bottom soil.

[0022] Furthermore, the reverse osmosis plates can be inserted into the sockets on the left and right sides respectively, and a handle for easy insertion and removal can be provided on the outward side of the reverse osmosis plate, so that it can be pulled out from the socket by a traction machine or other equipment.

[0023] In some embodiments, all the card blocks form a matrix layout, for example, forming an arrangement of m rows and n columns, and m layers of connecting plates are fixed to the back of the water-repellent layer, that is, the number of rows of card blocks is equal to the number of connecting plates, and the limit columns connected to the card blocks can clamp the connecting plates, and then clamp the entire water-repellent layer. The position of the connecting plate should be staggered with the horizontal bending pipe to avoid blocking the seepage water from flowing into the bending pipe.

[0024] In some embodiments, the outer side of the bent pipe may be laid with a geomat and a geotextile to prevent physical blockage of the drainage and infiltration pipe.

[0025] In some embodiments, the bending tube is made of non-metallic anti-corrosion conduit to extend its service life.

[0026] In some embodiments, the downstream end of the drainage hole is connected to a drainage pipe, which leads to the downstream mortar-stone drainage ditch. The drainage pipe has an inclination angle of 3 to 5 degrees to facilitate drainage.

[0027] The beneficial effects of the present invention are:

[0028] (1) This application can efficiently and quickly collect pore water from the dam body by setting up anti-seepage plates, anti-water layers and drainage ditches, and can also quickly discharge pore water from the dam body; by setting up drainage ditches, it is convenient for construction personnel to observe changes in water quality and facilitate the later inspection and maintenance of the dam body;

[0029] (2) This application can accelerate the consolidation of the dam body, improve the strength of the dam body, and improve the stability of the earth-rock dam by setting up a concrete wall, while also preventing water from penetrating to the downstream side of the dam body;

[0030] (3) The present application is provided with a limit column and a block, and the water-repellent layer can be clamped on the surface of the block and the limit column. The limit column and the block can increase the friction of the water-repellent layer to prevent the water-repellent layer from sliding, and it is also convenient for construction personnel to disassemble and assemble;

[0031] (4) The present application installs the filter on the downstream side of the drainage ditch to filter impurities in the water and prevent the impurities from clogging the filter;

[0032] (5) By setting a bent pipe, the present application can make the seepage water of the dam body flow downward along the bent pipe in a circuitous manner, so as to disperse the seepage water and prevent the seepage water from being concentrated in a certain place and causing the seepage point to become larger and larger; the bent pipe is connected to the surface of the anti-water layer by a buckle, which is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0034] in:

[0035] Figure 1 An exploded diagram of the earth-rock dam drainage system of Example 1 of the present application;

[0036] Figure 2 This is a schematic structural diagram of the earth-rock dam seepage drainage system of Example 1 of the present application;

[0037] Figure 3 An exploded diagram of the earth-rock dam drainage system of Example 2 of the present application;

[0038] Figure 4 This is a schematic structural diagram of the earth-rock dam drainage system of Example 2 of the present application;

[0039] Figure 5 It is a schematic diagram of the structure of the filter screen in Example 1 and Example 2;

[0040] Figure 6 It is a schematic diagram of the structure of the buckle in Example 1 and Example 2;

[0041] Reference numerals:

[0042] 1. Dam body; 2. Concrete wall; 3. Drainage ditch; 4. Bottom soil; 5. Socket; 6. Reverse seepage plate; 7. Water hole; 8. Block; 9. Limit column; 10. Water return layer; 11. Drainage body; 12. Connecting plate; 13. Buckle; 14. Bending pipe; 15. Limit bolt; 16. Drain hole; 17. Drainage groove; 18. Block hole; 19. Limit groove; 20. First limit plate; 21. Second limit plate; 22. Filter; 23. Fastening plate; 24. Bolt; 25. Drainage hole; 26. Lawn layer; 27. Downstream side of dam body; 28. Upstream side of dam body. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0044] The earth-rock dam drainage system according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] like Figure 1-6 As shown, the embodiment of the present application proposes a drainage system for an earth-rock dam, comprising: a dam body 1 and a drainage ditch 3, wherein the lower surface of the dam body 1 is fixed to the upper part of the bottom soil 4, the drainage ditch 3 is arranged at the bottom of the downstream side 27 of the dam body, a concrete wall 2 is cast between the upstream side 28 of the dam body and the downstream side 27 of the dam body, a plurality of rows of clamping holes 18 are opened on the downstream side 27 of the dam body, plug holes 5 are opened on both sides of the downstream side 27 of the dam body, an anti-osmosis plate 6 is inserted into the plug hole 5, a plurality of water holes 7 are evenly distributed on the anti-osmosis plate 6, and the water holes 7 are connected to the clamping holes 18;

[0046] The downstream side 27 of the dam body is detachably connected to a water-repellent layer 10, the interior of the water-repellent layer 10 is filled with a drainage body 11, the front of the water-repellent layer 10 is detachably connected to a bending pipe 14, a plurality of hydrophobic holes 16 are evenly distributed on the bending pipe 14, a plurality of drainage holes 25 are opened on the platform on the downstream side of the drainage ditch 3, a filter screen 22 is detachably connected to the drainage hole 25, and the filter screen 22 is used to filter debris.

[0047] The present application can efficiently and quickly collect the pore water of the dam body and quickly discharge the pore water out of the dam body by setting up the anti-seepage plate 6, the anti-water layer 10 and the drainage ditch 3; by setting up the drainage ditch 3, it is convenient for construction personnel to observe the changes in water quality and facilitate the later maintenance of the dam body.

[0048] The present application can accelerate the consolidation of the dam body, improve the strength of the dam body, and improve the stability of the earth-rock dam by setting up the concrete wall 2, and at the same time can prevent water from penetrating to the downstream side 27 of the dam body.

[0049] The anti-water layer 10 provided in the present application can prevent the soil protected by the dam body or dam foundation from being precipitated with the seepage water, and can also ensure the smooth outflow of pore water.

[0050] In some specific embodiments, a row of blocks 8 are fixed between every two adjacent rows of holes 18 , a limiting column 9 is fixed on the front of each block 8 , the water-repellent layer 10 is clamped to the downstream side 27 of the dam body through the blocks 8 and the limiting column 9 , and the limiting column 9 is clamped to the inner wall of the water-repellent layer 10 .

[0051] The present application sets a limit column 9 and a block 8, which can clamp the water-repellent layer 10 on the surface of the block 8 and the limit column 9. The limit column 9 and the block 8 can increase the friction of the water-repellent layer 10 to prevent the water-repellent layer 10 from sliding, and it is also convenient for construction workers to disassemble and assemble.

[0052] In some specific embodiments, the bending tube 14 is fixedly connected to the water-repellent layer 10 by means of a buckle 13, so as to facilitate the disassembly and assembly by construction personnel.

[0053] In some specific embodiments, the bending pipe 14 is formed by connecting a plurality of vertically arranged S-shaped pipes to each other to form a baffle structure. The radiation area of ​​the bending pipe 14 is wider than that of other drainage methods, making it easier for water to penetrate out.

[0054] In some specific embodiments, the longitudinal section of the bending tube 14 is provided with drain holes 16 all around, wherein the bending tube 14 is provided with drain holes 16 at the joint between the bending tube 14 and the downstream side 27 of the dam body, so that the water seeping from the downstream side 27 of the dam body enters the bending tube 14 through the drain holes 16, and then flows from top to bottom along the bending tube 14 to the bottom of the dam body 1. By providing the bending tube 14, the present application can make the seepage water of the dam body 1 flow downward along the bending tube 14 in a circuitous manner, so that the seepage water is dispersed, and prevent the seepage water from being concentrated in a certain place, causing the seepage point to become larger and larger.

[0055] In some specific embodiments, a plurality of drainage grooves 17 for draining water are provided on the upstream side of the drainage ditch 3 .

[0056] In some specific embodiments, Figure 5 As shown, a frame is fixed around the filter screen 22, and the frame is fixed to the platform on the downstream side of the drain ditch 3 by bolts 24. The filter screen 22 is installed on the downstream side of the drain ditch 3 in the present application, and impurities in the water can be filtered to prevent the impurities from clogging the filter screen 22.

[0057] In some specific embodiments, the frame includes two parallel first limit plates 20 and two parallel second limit plates 21. Each first limit plate 20 is fixed with a fastening plate 23 on both sides, and the fastening plate 23 is fixed to the platform on the downstream side of the drainage ditch 3 by bolts 24.

[0058] In some specific embodiments, on the platform on the downstream side of the drainage ditch 3 , limiting grooves 19 are opened on the front and rear sides of the drainage hole 25 , and two first limiting plates 20 are inserted into the limiting grooves 19 .

[0059] In some specific embodiments, a water-permeable lawn layer 26 is fixedly connected to the top of the water-repellent layer 10, and the lawn layer 26 is connected to the inside of the water-repellent layer 10. A part of the external rainwater is absorbed to minimize the impact of rainwater on the water-repellent layer 10 and the dam body 1.

[0060] In some specific embodiments, the drainage body 11 is a sand and gravel filler. It plays a supporting role for the anti-water layer 10 as a whole, and also improves the water-blocking performance of the anti-water layer 10. It can also play a filtering role, blocking the mud mixed with the seepage water, making the seepage water passing through the drainage body 11 clearer, and the mud left in the drainage body 11 can improve the stability of the drainage body 11. The drainage body 11 can be made of local materials according to the actual local conditions, and is not limited to sand and gravel fillers, but can also be concrete, etc.

[0061] In some specific embodiments, Figure 6 As shown, both ends of the buckle 13 are fixed on the water-repellent layer 10 by limiting bolts 15 , and the limiting bolts 15 are detachable. One end of the limiting bolts 15 passes through the buckle 13 and is threadedly arranged on the inner wall of the water-repellent layer 10 .

[0062] In some specific embodiments, the plug hole 5 extends from the upper part of the downstream side 27 of the dam body to the downstream side of the drainage ditch 3, and the anti-osmosis plate 6 is correspondingly provided with multiple pieces spliced ​​together. The anti-osmosis plate 6 located at the drainage ditch 3 is used to infiltrate a small part of the water in the drainage ditch 3 downward into the bottom soil 4.

[0063] Furthermore, the reverse osmosis plates 6 can be inserted into the sockets 5 on the left and right sides respectively, and a handle for easy insertion and removal can be provided on the outward side of the reverse osmosis plate 6, so that it can be pulled out from the socket 5 by a traction machine or other equipment.

[0064] In some specific embodiments, all the blocks 8 form a matrix layout, for example, forming an arrangement of m rows and n columns, and m layers of connecting plates 12 are fixed to the back of the water-repellent layer 10, that is, the number of rows of the blocks 8 is equal to the number of connecting plates 12, and the limit columns 9 connected to the blocks 8 can clamp the connecting plates 12, and then clamp the entire water-repellent layer 10. The position of the connecting plate 12 should be staggered from the horizontal bending tube 14 to avoid hindering the seepage water from flowing into the bending tube 14.

[0065] In some specific embodiments, the outer side of the bent pipe 14 may be paved with a geotextile mat and a geotextile to prevent the drainage and infiltration pipe from being physically blocked.

[0066] In some specific embodiments, the bending tube 14 is made of a non-metallic anti-corrosion conduit to extend its service life.

[0067] In some specific embodiments, the downstream end of the drainage hole 25 is connected to a drainage pipe, which leads to the downstream mortar-stone drainage ditch. The drainage pipe has an inclination angle of 3 to 5 degrees to facilitate drainage.

[0068] It should be pointed out that Figure 1 and Figure 3 The dotted line on the middle water-repellent layer 10 represents the connecting plate 12. Since the connecting plate 12 is arranged on the back of the water-repellent layer 10 and cannot be seen from the front, the dotted line is used to indicate its position.

[0069] The present application is further described below through specific embodiments.

[0070] Example 1

[0071] like Figure 1-2 As shown, a drainage system for an earth-rock dam comprises: a dam body 1 and a drainage ditch 3, wherein the lower surface of the dam body 1 is fixed on the upper part of the bottom soil 4, the drainage ditch 3 is arranged at the bottom of the downstream side 27 of the dam body, a concrete wall 2 is cast between the upstream side 28 of the dam body and the downstream side 27 of the dam body, a plurality of rows of clamping holes 18 are opened on the downstream side 27 of the dam body, plug holes 5 are opened on both sides of the downstream side 27 of the dam body, an anti-osmosis plate 6 is inserted into the plug hole 5, a plurality of water holes 7 are evenly distributed on the anti-osmosis plate 6, and the water holes 7 are connected with the clamping holes 18.

[0072] The downstream side 27 of the dam body is detachably connected to a water-repellent layer 10, the interior of the water-repellent layer 10 is filled with a drainage body 11, the front of the water-repellent layer 10 is detachably connected to a bending pipe 14, a plurality of hydrophobic holes 16 are evenly distributed on the bending pipe 14, a plurality of drainage holes 25 are opened on the platform on the downstream side of the drainage ditch 3, a filter screen 22 is detachably connected to the drainage hole 25, and the filter screen 22 is used to filter debris.

[0073] This embodiment can efficiently and quickly collect the pore water of the dam body and quickly discharge the pore water out of the dam body by providing the anti-osmosis plate 6, the anti-water layer 10 and the drainage ditch 3; by providing the drainage ditch 3, it is convenient for construction personnel to observe the changes in water quality and facilitate the later maintenance of the dam body.

[0074] In this embodiment, by providing the concrete wall 2 , the consolidation of the dam body can be accelerated, the strength of the dam body can be increased, the stability of the earth-rock dam can be improved, and at the same time, water can be prevented from penetrating to the downstream side 27 of the dam body.

[0075] The water-repellent layer 10 provided in this embodiment can prevent the soil protected by the dam body or dam foundation from being precipitated with the seepage water, and can also ensure that the pore water can flow out smoothly.

[0076] In this embodiment, a row of blocks 8 are fixed between every two adjacent rows of holes 18, and a limiting column 9 is fixed on the front of each block 8. The water-repellent layer 10 is connected to the downstream side 27 of the dam body through the blocks 8 and the limiting column 9, and the limiting column 9 is connected to the inner wall of the water-repellent layer 10.

[0077] In this embodiment, a limiting column 9 and a clamping block 8 are provided, and the water-repellent layer 10 can be clamped on the surface of the clamping block 8 and the limiting column 9. The limiting column 9 and the clamping block 8 can increase the friction of the water-repellent layer 10 to prevent the water-repellent layer 10 from sliding, and also facilitate the disassembly and assembly by construction personnel.

[0078] In this embodiment, the bending pipe 14 is fixedly connected to the water-repellent layer 10 by means of a buckle 13, so that the construction personnel can disassemble and assemble the pipe easily.

[0079] In this embodiment, the bending pipe 14 is formed by connecting a plurality of vertically arranged S-shaped pipes to each other to form a baffle structure. The radiation area of ​​the bending pipe 14 is wider than that of other drainage methods, making it easier for water to penetrate out.

[0080] In this embodiment, the longitudinal section of the bending tube 14 is provided with drain holes 16 around it, wherein the bending tube 14 is provided with a drain hole 16 at the joint between the bending tube 14 and the downstream side 27 of the dam body, so that the water seeping from the downstream side 27 of the dam body enters the bending tube 14 through the drain hole 16, and then flows from top to bottom along the bending tube 14 to the bottom of the dam body 1. By providing the bending tube 14, the present application can make the seepage water of the dam body 1 flow downward along the bending tube 14 in a circuitous manner, so that the seepage water is dispersed, and prevent the seepage water from being concentrated in a certain place, causing the seepage point to become larger and larger.

[0081] In this embodiment, a plurality of drainage grooves 17 for draining water are provided on the upstream side of the drainage ditch 3. The drainage grooves 17 are parallel to each other.

[0082] In this embodiment, if Figure 5 As shown, a frame is fixed around the filter screen 22, and the frame is fixed to the platform on the downstream side of the drain ditch 3 by bolts 24. In this embodiment, the filter screen 22 is installed on the downstream side of the drain ditch 3, which can filter impurities in the water and prevent the impurities from clogging the filter screen 22. The frame includes two parallel first limit plates 20 and two parallel second limit plates 21, and each first limit plate 20 is fixed with a fastening plate 23 on both sides, and the fastening plate 23 is fixed to the platform on the downstream side of the drain ditch 3 by bolts 24.

[0083] In this embodiment, on the platform on the downstream side of the drainage ditch 3 , limiting grooves 19 are provided at the front and rear sides of the drainage hole 25 , and two first limiting plates 20 are inserted into the limiting grooves 19 .

[0084] In this embodiment, a water-permeable lawn layer 26 is fixedly connected to the top of the water-repellent layer 10, and the lawn layer 26 is connected to the inside of the water-repellent layer 10. A part of the external rainwater is absorbed to minimize the impact of rainwater on the water-repellent layer 10 and the dam body.

[0085] In this embodiment, the drainage body 11 is a sand and gravel filler. It plays a supporting role for the anti-water layer 10 as a whole, and also improves the water-blocking performance of the anti-water layer 10. It can also play a filtering role, blocking the mud mixed with the seepage water, making the seepage water passing through the drainage body 11 clearer, and the mud left in the drainage body 11 can improve the stability of the drainage body 11. The drainage body 11 can be made of local materials according to the actual local conditions, and is not limited to sand and gravel fillers, but can also be concrete, etc.

[0086] In this embodiment, if Figure 6 As shown, both ends of the buckle 13 are fixed on the water-repellent layer 10 by limiting bolts 15 , and the limiting bolts 15 are detachable. One end of the limiting bolts 15 passes through the buckle 13 and is threadedly arranged on the inner wall of the water-repellent layer 10 .

[0087] In this embodiment, the reverse osmosis plate 6 is formed by splicing a plurality of reverse osmosis plate units. Two adjacent reverse osmosis plate units may abut against each other or be plugged into each other through matching protrusions and grooves, as long as the plugging position is not damaged when being pulled out from the plug hole 5.

[0088] Furthermore, the reverse osmosis plates 6 can be inserted into the sockets 5 on the left and right sides respectively, and a handle for easy insertion and removal can be provided on the outward side of the reverse osmosis plate 6, so that it can be pulled out from the socket 5 by a traction machine or other equipment.

[0089] In this embodiment, all the blocks 8 form a matrix layout, for example, forming an arrangement of m rows and n columns, and m layers of connecting plates 12 are fixed to the back of the water-repellent layer 10, that is, the number of rows of the blocks 8 is equal to the number of connecting plates 12, and the limit columns 9 connected to the blocks 8 can clamp the connecting plates 12, and then clamp the entire water-repellent layer 10. The position of the connecting plate 12 should be staggered from the horizontal bending tube 14 to avoid hindering the seepage water from flowing into the bending tube 14.

[0090] In this embodiment, the outer side of the bent pipe 14 may be paved with a geomat and a geotextile to prevent the drainage and filtration pipe from being physically blocked.

[0091] In this embodiment, the bending tube 14 is made of a non-metallic anti-corrosion conduit, which can extend its service life.

[0092] In this embodiment, the downstream end of the drainage hole 25 is connected to a drainage pipe, which leads to the downstream mortar-stone drainage ditch. The drainage pipe has an inclination angle of 3 to 5 degrees to facilitate drainage.

[0093] Example 2

[0094] like Figure 3-4As shown, a drainage system for an earth-rock dam comprises: a dam body 1 and a drainage ditch 3, wherein the lower surface of the dam body 1 is fixed on the upper part of the bottom soil 4, the drainage ditch 3 is arranged at the bottom of the downstream side 27 of the dam body, a concrete wall 2 is cast between the upstream side 28 of the dam body and the downstream side 27 of the dam body, a plurality of rows of clamping holes 18 are opened on the downstream side 27 of the dam body, plug holes 5 are opened on both sides of the downstream side 27 of the dam body, an anti-osmosis plate 6 is inserted into the plug hole 5, a plurality of water holes 7 are evenly distributed on the anti-osmosis plate 6, and the water holes 7 are connected with the clamping holes 18.

[0095] The downstream side 27 of the dam body is detachably connected to a water-repellent layer 10, the interior of the water-repellent layer 10 is filled with a drainage body 11, the front of the water-repellent layer 10 is detachably connected to a bending pipe 14, a plurality of hydrophobic holes 16 are evenly distributed on the bending pipe 14, a plurality of drainage holes 25 are opened on the platform on the downstream side of the drainage ditch 3, a filter screen 22 is detachably connected to the drainage hole 25, and the filter screen 22 is used to filter debris.

[0096] This embodiment can efficiently and quickly collect the pore water of the dam body and quickly discharge the pore water out of the dam body by providing the anti-osmosis plate 6, the anti-water layer 10 and the drainage ditch 3; by providing the drainage ditch 3, it is convenient for construction personnel to observe the changes in water quality and facilitate the later maintenance of the dam body.

[0097] In this embodiment, by providing the concrete wall 2 , the consolidation of the dam body can be accelerated, the strength of the dam body can be increased, the stability of the earth-rock dam can be improved, and at the same time, water can be prevented from penetrating to the downstream side 27 of the dam body.

[0098] The water-repellent layer 10 provided in this embodiment can prevent the soil protected by the dam body or dam foundation from being precipitated with the seepage water, and can also ensure that the pore water can flow out smoothly.

[0099] In this embodiment, a row of blocks 8 are fixed between every two adjacent rows of holes 18, and a limiting column 9 is fixed on the front of each block 8. The water-repellent layer 10 is connected to the downstream side 27 of the dam body through the blocks 8 and the limiting column 9, and the limiting column 9 is connected to the inner wall of the water-repellent layer 10.

[0100] In this embodiment, a limiting column 9 and a clamping block 8 are provided, and the water-repellent layer 10 can be clamped on the surface of the clamping block 8 and the limiting column 9. The limiting column 9 and the clamping block 8 can increase the friction of the water-repellent layer 10 to prevent the water-repellent layer 10 from sliding, and also facilitate the disassembly and assembly by construction personnel.

[0101] In this embodiment, the bending pipe 14 is fixedly connected to the water-repellent layer 10 by means of a buckle 13, so that the construction personnel can disassemble and assemble the pipe easily.

[0102] In this embodiment, the bending pipe 14 is formed by connecting a plurality of vertically arranged S-shaped pipes to each other to form a baffle structure. The radiation area of ​​the bending pipe 14 is wider than that of other drainage methods, making it easier for water to penetrate out.

[0103] In this embodiment, the longitudinal section of the bending tube 14 is provided with drain holes 16 around it, wherein the bending tube 14 is provided with a drain hole 16 at the joint between the bending tube 14 and the downstream side 27 of the dam body, so that the water seeping from the downstream side 27 of the dam body enters the bending tube 14 through the drain hole 16, and then flows from top to bottom along the bending tube 14 to the bottom of the dam body 1. By providing the bending tube 14, the present application can make the seepage water of the dam body 1 flow downward along the bending tube 14 in a circuitous manner, so that the seepage water is dispersed, and prevent the seepage water from being concentrated in a certain place, causing the seepage point to become larger and larger.

[0104] In this embodiment, a plurality of drainage grooves 17 for draining water are provided on the upstream side of the drainage ditch 3. The drainage grooves 17 are parallel to each other.

[0105] In this embodiment, if Figure 5 As shown, a frame is fixed around the filter screen 22, and the frame is fixed to the platform on the downstream side of the drain ditch 3 by bolts 24. In this embodiment, the filter screen 22 is installed on the downstream side of the drain ditch 3, which can filter impurities in the water and prevent the impurities from clogging the filter screen 22. The frame includes two parallel first limit plates 20 and two parallel second limit plates 21, and each first limit plate 20 is fixed with a fastening plate 23 on both sides, and the fastening plate 23 is fixed to the platform on the downstream side of the drain ditch 3 by bolts 24.

[0106] In this embodiment, on the platform on the downstream side of the drainage ditch 3 , limiting grooves 19 are provided at the front and rear sides of the drainage hole 25 , and two first limiting plates 20 are inserted into the limiting grooves 19 .

[0107] In this embodiment, a water-permeable lawn layer 26 is fixedly connected to the top of the water-repellent layer 10, and the lawn layer 26 is connected to the inside of the water-repellent layer 10. A part of the external rainwater is absorbed to minimize the impact of rainwater on the water-repellent layer 10 and the dam body.

[0108] In this embodiment, the drainage body 11 is a sand and gravel filler. It plays a supporting role for the anti-water layer 10 as a whole, and also improves the water-blocking performance of the anti-water layer 10. It can also play a filtering role, blocking the mud mixed with the seepage water, making the seepage water passing through the drainage body 11 clearer, and the mud left in the drainage body 11 can improve the stability of the drainage body 11. The drainage body 11 can be made of local materials according to the actual local conditions, and is not limited to sand and gravel fillers, but can also be concrete, etc.

[0109] In this embodiment, if Figure 6 As shown, both ends of the buckle 13 are fixed on the water-repellent layer 10 by limiting bolts 15 , and the limiting bolts 15 are detachable. The limiting bolts 15 pass through one end of the buckle 13 and are threadedly arranged on the inner wall of the water-repellent layer 10 .

[0110] In this embodiment, the reverse osmosis plate 6 is formed by splicing a plurality of reverse osmosis plate units. Two adjacent reverse osmosis plate units may abut against each other or be plugged into each other through matching protrusions and grooves, as long as the plugging position is not damaged when being pulled out from the plug hole 5.

[0111] In this embodiment, the plug hole 5 extends from the upper part of the downstream side 27 of the dam body to the downstream side of the drainage ditch 3 , and the anti-seepage plate 6 located at the drainage ditch 3 is used to make a small part of the water in the drainage ditch 3 seep downward into the bottom soil 4 .

[0112] Furthermore, the reverse osmosis plates 6 can be inserted into the sockets 5 on the left and right sides respectively, and a handle for easy insertion and removal can be provided on the outward side of the reverse osmosis plate 6, so that it can be pulled out from the socket 5 by a traction machine or other equipment.

[0113] In this embodiment, all the blocks 8 form a matrix layout, for example, forming an arrangement of m rows and n columns, and m layers of connecting plates 12 are fixed to the back of the water-repellent layer 10, that is, the number of rows of the blocks 8 is equal to the number of connecting plates 12, and the limit columns 9 connected to the blocks 8 can clamp the connecting plates 12, and then clamp the entire water-repellent layer 10. The position of the connecting plate 12 should be staggered from the horizontal bending tube 14 to avoid hindering the seepage water from flowing into the bending tube 14.

[0114] In this embodiment, the outer side of the bent pipe 14 may be paved with a geomat and a geotextile to prevent the drainage and filtration pipe from being physically blocked.

[0115] In this embodiment, the bending tube 14 is made of a non-metallic anti-corrosion conduit, which can extend its service life.

[0116] In this embodiment, the downstream end of the drainage hole 25 is connected to a drainage pipe, which leads to the downstream mortar-stone drainage ditch. The drainage pipe has an inclination angle of 3 to 5 degrees to facilitate drainage.

[0117] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0118] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0119] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0120] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0121] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0122] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A seepage drainage system for an earth-rock dam, characterized in that: include: A dam body and a drainage ditch, wherein the drainage ditch is arranged at the bottom of the downstream side of the dam body, a concrete wall is cast between the upstream side and the downstream side of the dam body, a plurality of rows of clamping holes are opened on the downstream side of the dam body, plug holes are opened on both sides of the downstream side of the dam body, and a reverse osmosis plate is inserted into the plug holes, and a plurality of water holes are evenly distributed on the reverse osmosis plate, and the water holes are connected with the clamping holes; The downstream side of the dam body is detachably connected with a water-repelling layer, the back of the water-repelling layer is filled with a drainage body, the front of the water-repelling layer is detachably connected with a bending pipe, a plurality of drainage holes are evenly distributed on the bending pipe, a plurality of drainage holes are opened on the platform on the downstream side of the drainage ditch, and a filter screen is detachably connected to the drainage hole; A row of blocks is fixed between every two adjacent rows of holes, a limiting column is fixed on the front of each block, the water-reflecting layer is clamped on the downstream side of the dam body through the blocks and the limiting column, and the bending pipe is fixedly connected to the water-reflecting layer through a buckle.

2. The earth-rock dam drainage system according to claim 1, characterized in that: A plurality of drainage grooves for draining water are provided on the upstream side of the drainage ditch.

3. The earth-rock dam drainage system according to claim 1, characterized in that: A frame is fixed around the filter screen, and the frame is fixed on the platform on the downstream side of the drainage ditch by bolts.

4. The earth-rock dam drainage system according to claim 3, characterized in that: The frame includes two first limiting plates arranged in parallel and two second limiting plates arranged in parallel. A fastening plate is fixed on both sides of each first limiting plate, and the fastening plate is fixed on the platform on the downstream side of the drainage ditch by bolts.

5. The earth-rock dam drainage system according to claim 4, characterized in that: On the platform at the downstream side of the drainage ditch, limiting grooves are provided at the front and rear sides of the drainage hole, and two first limiting plates are inserted into the limiting grooves.

6. The earth-rock dam drainage system according to any one of claims 1 to 5, characterized in that: A water-permeable lawn layer is fixedly connected to the top of the water-repellent layer, and the lawn layer is communicated with the inside of the water-repellent layer.

7. The earth-rock dam drainage system according to claim 1, characterized in that: The drainage body is a sand and gravel filler.

8. The earth-rock dam drainage system according to claim 1, characterized in that: The two ends of the buckle are fixed on the water-repellent layer by limiting bolts.

Images