Underground drainage structure for channel soil slope protection

Abstract

The utility model relates to the technical field of channel slope protection drainage structures, in particular to a channel soil slope protection buried drainage structure which comprises a slope protection body, first geotechnical cloth is arranged in the slope protection body, a first medium-coarse sand inverted filter layer is arranged in the first geotechnical cloth, and second geotechnical cloth is arranged in the first medium-coarse sand inverted filter layer. The structure has the advantages that the first permeable pipe with the diameter being 200 mm and parallel to the water flow direction is additionally arranged at the elevation of 27.00 m, the second permeable pipe with the diameter being 200 mm and parallel to the water flow direction is additionally arranged at the elevation of 25.60 m, seepage water is guided to drop water outside the east wall of the pump station and drop water of the poplar gate, accumulated water is prevented from crossing the coping, and the water seepage is prevented from being blocked. The problems that the soil slope protection body is muddy throughout the year and the lining plate is frozen and thawed due to water seepage of the diversion canal slope of the myriadic gate pump station are solved, engineering inspection is facilitated, and the service life of the lining plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of channel slope protection drainage structures, in particular to an underground drainage structure for channel soil slope protection. Background Art

[0002] A channel is a passage for water to flow. Lining plates are usually set at the bottom and sides of the channel to prevent water from entering the soil and causing soil loss. A scaffold is set at the top of the channel, which is usually made of stone slabs and cement for walking. Above the scaffold is the channel slope protection to prevent soil loss.

[0003] The water diversion channel of the pump station management office is mechanically excavated. The top of the channel is the existing ground with an elevation of 29.80m. The slopes on both sides are 1:2.5. A raft is set at an elevation of 26.30m with a width of 2.00m. 0.08m thick C20 cast-in-place concrete slabs are used for protection below the raft. No drainage pipes are set, and turf is used for slope protection above the raft.

[0004] When the existing earthen slope protection drainage structure is in use, water often overflows from the abutment at the Yangzhaguan Production Bridge and other places in the water diversion channel, presses along the lining plate, and flows into the channel. The high water level causes the channel earthen slope protection to be muddy all year round, and there are heavy water stains above the lining plate, which affects the service life of the project and the overall effect of the channel.

[0005] In order to solve the above problems, this application proposes a channel soil slope protection buried drainage structure. Utility Model Content

[0006] To solve the problems raised in the above background technology. The utility model provides a channel soil slope protection underground drainage structure, which can solve the problems of perennial muddy soil slope protection and freezing and thawing of lining plates caused by water seepage on the slope of the water diversion channel of Wannian Sluice Pump Station, which is conducive to engineering inspection and improves the service life of the lining plates. In addition, the permeable pipes, PVC connecting pipes, medium-coarse sand, geotextiles and other materials used in the drainage facilities are easy to obtain. The hard permeable pipes of the drainage facilities have large porosity and good water collection effect. After installation, there is obvious water flow through the permeable pipes to the waterfalls on both sides. The backfilling after the underground permeable pipes are installed can well maintain the stability of the channel slope.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a channel soil slope protection buried drainage structure, comprising a slope protection body, a first geotextile is provided inside the slope protection body, a first medium-coarse sand filter layer is provided inside the first geotextile, a second geotextile is provided inside the first medium-coarse sand filter layer, a first water-permeable pipe is provided on the inner side of the second geotextile, a first three-way pipe is provided in the middle of the first water-permeable pipe, a PVC pipe is provided on the side of the first three-way pipe, a channel body is provided on one side of the slope protection body, and the ground is provided on the other side of the slope protection body, a third geotextile is provided inside the channel body, a second medium-coarse sand filter layer is provided inside the third geotextile, a fourth geotextile is provided inside the second medium-coarse sand filter layer, a second water-permeable pipe is provided on the inner side of the fourth geotextile, a second three-way pipe is provided in the middle of the second water-permeable pipe, a raft is provided at the top of the channel body, and a lining plate is provided on the side of the channel body.

[0008] As a preferred buried drainage structure for a channel soil slope protection of the utility model, the side of the first three-way pipe is fixedly connected to the top of the PVC pipe, and the bottom end of the PVC pipe is fixedly connected to the side of the second three-way pipe. The PVC pipe facilitates connecting the first permeable pipe with the second permeable pipe to speed up the water flow rate.

[0009] As a preferred buried drainage structure of a channel soil slope protection of the utility model, a first drainage body channel is opened inside the slope protection body, the interior of the first drainage body channel is in contact with the outer side of the first geotextile, and the first geotextile prevents leakage of the first medium-coarse sand filter layer.

[0010] As a preferred buried drainage structure of a channel soil slope protection of the utility model, a second drainage body channel is opened inside the channel body, the interior of the second drainage body channel is in contact with the outer side of the third geotextile, and the third geotextile prevents leakage of the second medium-coarse sand filter layer.

[0011] As a preferred buried drainage structure of a channel soil slope protection of the utility model, a connecting groove is opened inside the slope protection body, and the inside of the connecting groove fits with the side of the PVC pipe, so that the slope protection body can easily prevent soil erosion.

[0012] As a preferred buried drainage structure for channel soil slope protection of the utility model, the top of the channel body is fixedly connected to the bottom of the raking platform, and a pressure top is fixedly provided on the top of the channel body, and the raking platform is convenient for pedestrians to walk on.

[0013] As a preferred channel soil slope protection buried drainage structure of the utility model, one side of the pressure top is fixedly connected to one side of the lining plate, and the bottom end of the lining plate is fixedly connected to the side of the channel body, and the pressure top facilitates improving the stability of the lining plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A φ200mm first water permeable pipe parallel to the water flow direction was added at an elevation of 27.00m, and a φ200mm second water permeable pipe parallel to the water flow direction was added at an elevation of 25.60m, respectively directing the seepage water to the waterfall outside the east wall of the pump station and the Yangzhaguan waterfall, avoiding the accumulation of water over the top of the pressure and directly flowing to the main body of the channel through the lining plate, solving the problem of perennial muddy soil slope protection and freezing and thawing of the lining plate caused by water seepage on the slope of the water diversion channel of Wannianzha Pumping Station, which is conducive to engineering inspection and improves the service life of the lining plate.

[0016] 2. The permeable pipes, PVC connecting pipes, medium-coarse sand, geotextile and other materials used in the drainage facility are easy to obtain. The hard permeable pipes of the drainage facility have a large porosity and a good water collection effect. After installation, there is obvious water flow through the permeable pipes to the waterfalls on both sides. Backfilling after the buried permeable pipes are installed can well maintain the stability of the channel slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the PVC pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the first water-permeable pipe of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the second water-permeable pipe of the utility model;

[0022] Figure 5 For this utility model Figure 3 A schematic diagram of the structure at A;

[0023] Figure 6 For this utility model Figure 4 Schematic diagram of the structure at point B.

[0024] In the figure:

[0025] 1. Slope protection body; 2. First geotextile; 3. First medium-coarse sand filter layer; 4. Second geotextile; 5. First permeable pipe; 6. First three-way pipe; 7. PVC pipe; 8. Channel body; 9. Ground; 10. Third geotextile; 11. Second medium-coarse sand filter layer; 12. Fourth geotextile; 13. Second permeable pipe; 14. Second three-way pipe; 15. Slope protection body; 16. Lining plate; 17. Top pressure. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1-Figure 6 As shown;

[0029] A channel soil slope protection buried drainage structure comprises a slope protection body.

[0030] The water diversion channel of the pump station management office is mechanically excavated. The top of the channel is the existing ground with an elevation of 29.80m. The slopes on both sides are 1:2.5. A raft is set at an elevation of 26.30m with a width of 2.00m. 0.08m thick C20 cast-in-place concrete slabs are used for protection below the raft. No drainage pipes are set, and turf is used for slope protection above the raft.

[0031] When the existing earthen slope protection drainage structure is in use, water often overflows from the abutment at the Yangzhaguan Production Bridge and other places in the water diversion channel, presses along the lining plate, and flows into the channel. The high water level causes the channel earthen slope protection to be muddy all year round, and there are heavy water stains on the top of the lining plate, which affects the service life of the project and the overall effect of the channel. Combined with actual use, this problem is obviously a real and difficult to solve problem. In view of this, in order to solve this technical problem, the first permeable pipe and the second permeable pipe are added to this application document.

[0032] According to the above content, in order to solve the problem that the soil slope protection of the channel is muddy all year round due to high water level, the water stains on the lining plate are heavy, which affects the service life of the project and the overall effect of the channel, it also includes a slope protection body 1, a first geotextile 2 is arranged inside the slope protection body 1, a first medium-coarse sand filter layer 3 is arranged inside the first geotextile 2, a second geotextile 4 is arranged inside the first medium-coarse sand filter layer 3, a first permeable pipe 5 is arranged on the inner side of the second geotextile 4, a first three-way pipe 6 is arranged in the middle of the first permeable pipe 5, and a side of the first three-way pipe 6 is arranged There is a PVC pipe 7, a channel body 8 is provided on one side of the slope protection body 1, and a ground 9 is provided on the other side of the slope protection body 1. A third geotextile 10 is provided inside the channel body 8, and a second medium-coarse sand filter layer 11 is provided inside the third geotextile 10. A fourth geotextile 12 is provided inside the second medium-coarse sand filter layer 11, and a second permeable pipe 13 is provided on the inner side of the fourth geotextile 12. A second three-way pipe 14 is provided in the middle of the second permeable pipe 13. A raking platform 15 is provided at the top of the channel body 8, and a lining plate 16 is provided on the side of the channel body 8.

[0033] In this embodiment: along the seepage slope protection body 1 on the north side of the main channel 8 of the Wannian Sluice Pump Station diversion channel, the first drainage channel and the second drainage channel are arranged in parallel along the water flow direction, the first drainage channel is provided with an upper drainage body, the second drainage channel is provided with a lower drainage body, the upper drainage body includes a first geotextile 2, a first medium-coarse sand filter layer 3, a second geotextile 4 and a first permeable pipe 5, the lower drainage body includes a third geotextile 10, a second medium-coarse sand filter layer 11, a fourth geotextile 12 and a second permeable pipe 13, the first permeable pipe 5 is a φ200mm plastic hard permeable pipe, the first permeable pipe 5 is wrapped with 30 0g / ㎡ one layer of the second geotextile 4, the overlap width of the second geotextile 4 is 0.1m, the second geotextile 4 is externally provided with the first medium-coarse sand filter layer 3, the size is 0.5*0.5m, the first medium-coarse sand filter layer 3 is wrapped with a layer of the first geotextile 2 of 300g / ㎡, the second permeable pipe 13 is a φ200mm plastic hard permeable pipe, the second permeable pipe 13 is wrapped with a layer of the fourth geotextile 12 of 300g / ㎡, the overlap width of the fourth geotextile 12 is 0.1m, the fourth geotextile 12 is externally provided with the second medium-coarse sand filter layer 11, the size is 0.5*0.5m, the second medium-coarse sand filter layer 11 is wrapped with a layer of the first geotextile 2 of 300g / ㎡ The first layer of the third geotextile 10 is located at the outlet of the upper drainage body, and the centerline elevation of the pipe is 27.0m. The second permeable pipe 13 of the lower drainage body is located 0.70m below the ridge 15, and the centerline elevation of the pipe is 25.60m. A tee is set every 100m between the upper and lower drainage bodies, and the upper and lower drainage bodies are connected by a PVC pipe 7. A φ200mm first permeable pipe 5 parallel to the water flow direction is added at an elevation of 27.00m, and a φ200mm second permeable pipe 13 parallel to the water flow direction is added at an elevation of 25.60m, respectively directing the seepage water to the waterfall outside the east wall of the pump station and the Yang The gate official waterfall prevents the accumulated water from crossing the pressure top 17 and flows directly to the channel body 8 through the lining plate 16, which solves the problem of the perennial muddy earth slope protection body 1 and the freezing and thawing of the lining plate 16 caused by the slope seepage of the Wannian Sluice Pump Station water diversion channel, is conducive to engineering inspection and improves the service life of the lining plate 16. The permeable pipes, PVC connecting pipes, medium-coarse sand, geotextile and other materials used in the drainage facility are easy to obtain. The hard permeable pipes of the drainage facility have a large porosity and a good water collection effect. After installation, there is obvious water flowing through the permeable pipes to the waterfalls on both sides. Backfilling after the buried permeable pipes are installed can well maintain the stability of the channel slope.

[0034] In an optional embodiment: the side of the first three-way pipe 6 is fixedly connected to the top of the PVC pipe 7 , and the bottom of the PVC pipe 7 is fixedly connected to the side of the second three-way pipe 14 .

[0035] In this embodiment, the PVC pipe 7 facilitates the connection between the first water-permeable pipe 5 and the second water-permeable pipe 13 so as to accelerate the flow rate of water.

[0036] In an optional embodiment: a first drainage channel is opened inside the slope protection body 1 , and the inside of the first drainage channel is in contact with the outside of the first geotextile 2 .

[0037] In this embodiment: the first geotextile 2 prevents the first medium-coarse sand filter layer 3 from leaking, and the first medium-coarse sand filter layer 3 is used to block mud in the water.

[0038] In an optional embodiment, a second drainage channel is opened inside the channel body 8 , and the inside of the second drainage channel is in contact with the outside of the third geotextile 10 .

[0039] In this embodiment: the third geotextile 10 prevents leakage of the second medium-coarse sand filter layer 11, and the second medium-coarse sand filter layer 11 is used to block mud in the water.

[0040] In an optional embodiment, a connection groove is provided inside the slope protection body 1 , and the inside of the connection groove fits with the side surface of the PVC pipe 7 .

[0041] In this embodiment: the slope protection body 1 is convenient for preventing soil erosion.

[0042] In an optional embodiment: the top end of the channel body 8 is fixedly connected to the bottom end of the support platform 15 , and a pressure top 17 is fixedly provided on the top end of the channel body 8 .

[0043] In this embodiment: the platform 15 is convenient for pedestrians to walk.

[0044] In an optional embodiment: one side of the pressure top 17 is fixedly connected to one side of the lining plate 16 , and the bottom end of the lining plate 16 is fixedly connected to the side surface of the channel body 8 .

[0045] In this embodiment, the top pressing 17 is convenient for improving the stability of the lining plate 16 , and the lining plate 16 is convenient for preventing the soil in the channel body 8 from being lost.

[0046] The working principle and use process of the utility model are as follows: along the seepage slope protection body 1 on the north side of the main channel 8 of the Wannian Sluice Pump Station diversion channel, the first drainage channel and the second drainage channel are arranged in parallel along the water flow direction, an upper drainage body is arranged inside the first drainage channel, and a lower drainage body is arranged inside the second drainage channel. The upper drainage body includes a first geotextile 2, a first medium-coarse sand filter layer 3, a second geotextile 4 and a first permeable pipe 5, and the lower drainage body includes a third geotextile 10, a second medium-coarse sand filter layer 11, a fourth geotextile 12 and a second permeable pipe 13. The first permeable pipe 5 is a φ200mm plastic hard permeable pipe, and the first permeable pipe 5 is a φ200mm plastic hard permeable pipe. The pipe 5 is wrapped with a layer of the second geotextile 4 of 300g / ㎡, the overlap width of the second geotextile 4 is 0.1m, the second geotextile 4 is provided with a first medium-coarse sand filter layer 3, the size of which is 0.5*0.5m, the first medium-coarse sand filter layer 3 is wrapped with a layer of the first geotextile 2 of 300g / ㎡, the second permeable pipe 13 is a φ200mm plastic hard permeable pipe, the second permeable pipe 13 is wrapped with a layer of the fourth geotextile 12 of 300g / ㎡, the overlap width of the fourth geotextile 12 is 0.1m, the fourth geotextile 12 is provided with a second medium-coarse sand filter layer 11, the size of which is 0.5*0.5m, the second medium-coarse sand filter layer 11 is wrapped with 3 00g / ㎡The third geotextile 10 layer, the first permeable pipe 5 of the upper drainage body is located at the escape point, the pipe centerline elevation is 27.0m, the second permeable pipe 13 of the lower drainage body is located 0.70m below the ridge 15, the pipe centerline elevation is 25.60m, the upper and lower drainage bodies are equipped with a tee every 100m, and the upper and lower drainage bodies are connected by a PVC pipe 7, a φ200mm first permeable pipe 5 parallel to the water flow direction is added at an elevation of 27.00m, and a φ200mm second permeable pipe 13 parallel to the water flow direction is added at an elevation of 25.60m, respectively directing the seepage water to the waterfall outside the east wall of the pump station The Yangzhaguan waterfall prevents the accumulated water from crossing the pressure top 17 and flowing directly to the channel body 8 through the lining plate 16, solving the problems of the perennial muddy earth slope protection body 1 and the freezing and thawing of the lining plate 16 caused by the slope seepage of the Wannianzha pump station water diversion channel, which is beneficial to the project inspection and improves the service life of the lining plate 16. The permeable pipes, PVC connecting pipes, medium-coarse sand, geotextile and other materials used in the drainage facility are easy to obtain. The hard permeable pipes of the drainage facility have a large porosity and a good water collection effect. After installation, there is obvious water flowing through the permeable pipes to the waterfalls on both sides. Backfilling after the buried permeable pipes are installed can well maintain the stability of the channel slope.

[0047] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A channel soil slope protection underground drainage structure, comprising a slope protection body (1), characterized in that: A first geotextile (2) is provided inside the slope protection body (1), a first medium-coarse sand filter layer (3) is provided inside the first geotextile (2), a second geotextile (4) is provided inside the first medium-coarse sand filter layer (3), a first water-permeable pipe (5) is provided inside the second geotextile (4), a first three-way pipe (6) is provided in the middle of the first water-permeable pipe (5), a PVC pipe (7) is provided on the side of the first three-way pipe (6), a channel body (8) is provided on one side of the slope protection body (1), and a channel body (8) is provided on the other side of the slope protection body (1). There is a ground (9), a third geotextile (10) is arranged inside the channel body (8), a second medium-coarse sand filter layer (11) is arranged inside the third geotextile (10), a fourth geotextile (12) is arranged inside the second medium-coarse sand filter layer (11), a second water-permeable pipe (13) is arranged on the inner side of the fourth geotextile (12), a second three-way pipe (14) is arranged in the middle of the second water-permeable pipe (13), a raft (15) is arranged at the top of the channel body (8), and a lining plate (16) is arranged on the side of the channel body (8).

2. A channel soil slope protection buried drainage structure according to claim 1, characterized in that: The side surface of the first three-way pipe (6) is fixedly connected to the top end of the PVC pipe (7), and the bottom end of the PVC pipe (7) is fixedly connected to the side surface of the second three-way pipe (14).

3. The channel soil slope protection buried drainage structure according to claim 1 is characterized by: A first drainage channel is provided inside the slope protection body (1), and the interior of the first drainage channel is in contact with the outer side of the first geotextile (2).

4. The channel soil slope protection buried drainage structure according to claim 1 is characterized by: A second drainage channel is provided inside the channel body (8), and the interior of the second drainage channel is in contact with the outer side of the third geotextile (10).

5. The channel soil slope protection buried drainage structure according to claim 1 is characterized by: A connection groove is provided inside the slope protection body (1), and the inside of the connection groove fits with the side surface of the PVC pipe (7).

6. The channel soil slope protection buried drainage structure according to claim 1 is characterized by: The top end of the channel body (8) is fixedly connected to the bottom end of the support platform (15), and a pressure top (17) is fixedly provided on the top end of the channel body (8).

7. The channel soil slope protection buried drainage structure according to claim 6 is characterized by: One side of the pressure top (17) is fixedly connected to one side of the lining plate (16), and the bottom end of the lining plate (16) is fixedly connected to the side surface of the channel body (8).

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