Directional drainage composite geotextile

Abstract

The invention provides directional drainage composite geotechnical cloth, and relates to the technical field of slope soil protection, the directional drainage composite geotechnical cloth comprises a plurality of independent geotechnical cloth assemblies, each independent geotechnical cloth assembly is provided with a fixing mechanism, a drainage assembly and a flow guide mechanism, and the surface layer of each independent geotechnical cloth assembly is provided with an upper geomembrane; the bottom of the upper-layer geomembrane is filled with an anti-seepage layer, the lower-layer geomembrane is attached to the top of the anti-seepage layer, and the fixing mechanism sequentially penetrates through the surface of the lower-layer geomembrane, the surface of the anti-seepage layer and the surface of the upper-layer geomembrane. Meanwhile, the problem that an acting point of the bottom layer of the independent geotechnical cloth assembly sinks can be avoided, the water accumulation condition is avoided, water generated on the surface of the independent geotechnical cloth assembly can be comprehensively collected, soil blocks accumulated in a conveying pipeline in the drainage process can also be crushed, and the probability of complete blockage is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of slope soil protection, in particular to a directional drainage composite geotextile. Background Art

[0002] Geotextile is a waterproof and drainage material made of geotextile and geomembrane. This material has high physical and mechanical properties such as tensile strength, tear resistance, bursting resistance, high strength, good elongation, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, and good anti-seepage performance. Therefore, it is used for waterproofing, isolation and reinforcement in underground projects such as subways and tunnels. It can also be used for reinforcement and anti-seepage treatment of building foundations, improve the stability and safety of buildings, and also play an important role in the protection of slope soil.

[0003] The composite geotextile in the prior art has a simple structure and needs to be laid over a large area during construction. Therefore, it is necessary to ensure that the bottom of the composite geotextile can be fixed under the soil. This causes the force application points used for fixing to cause the composite geotextile in this area to sink. When water appears on the surface of the composite geotextile in the future, it will accumulate in the sunken area and cannot be discharged all the way to the bottom of the slope. On the other hand, due to the large laying area, the composite geotextile cannot achieve a directional function when draining water, making it difficult to centrally divert the discharged water. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a directional drainage composite geotextile to solve the problems raised in the above-mentioned background technology. The present invention applies a downward traction force to each independent geotextile assembly from below through a fixing mechanism, and at the same time, it can also avoid the sinking problem of the support points of the bottom layer of the independent geotextile assembly and avoid water accumulation. The water generated on the surface of the independent geotextile assembly can be comprehensively collected and discharged in a direction, and the soil blocks accumulated in the conveying pipe during the drainage process can also be broken up to reduce the probability of complete blockage.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a directional drainage composite geotextile, including a composite geotextile body, the composite geotextile body including a plurality of independent geotextile components, each independent geotextile component is provided with a fixing mechanism, a drainage component and a diversion mechanism, and the surface layer of the independent geotextile component is provided with an upper geomembrane, the bottom of the upper geomembrane is filled with an anti-leakage layer, the top of the anti-leakage layer is attached with a lower geomembrane, the fixing mechanism passes through the surface of the lower geomembrane, the anti-leakage layer and the upper geomembrane in turn, the drainage component is installed at one side edge of the independent geotextile component, the diversion mechanism is attached to the middle position of the surface of the independent geotextile component, and the diversion mechanism is connected with the inside of the drainage component, each independent geotextile component is provided with an extension strip on one side, and the side of each independent geotextile component is pressed on the extension strip of another independent geotextile component.

[0006] Furthermore, the fixing mechanism includes a top pressure plate, a bottom fixing plate and a plug-in rod, a column is inserted at the bottom of the top pressure plate, the bottom end of the column is pressed on the surface of the bottom fixing plate, and the bottom of the column and the bottom fixing plate are in a separated state, and a plug-in rod is inserted at the bottom of the bottom fixing plate.

[0007] Furthermore, the surface of the top layer pressing plate is attached with an anti-skid layer, the top layer pressing plate is attached to the surface of the upper geomembrane, and the bottom layer fixing plate is symmetrically installed on both sides of the guide mechanism.

[0008] Furthermore, a support rod is inserted into the side of the top pressure plate, a plug-in piece is integrally formed on the side of the plug-in rod, a connecting piece is embedded on the top of the plug-in piece, and a linkage rod is inserted into the top of the connecting piece.

[0009] Furthermore, the surfaces of the upper geomembrane and the lower geomembrane are coated with an adhesive layer, the support rod is fixed to the surface of the upper geomembrane through the adhesive layer, the linkage rod is fixed to the bottom of the lower geomembrane through the adhesive layer, a separation cavity is provided on the inner side of the anti-leakage layer, and the separation cavity is provided in the area between the support rod and the linkage rod, and the anti-leakage layer adopts polyurethane waterproof coating.

[0010] Furthermore, the drainage component includes a collecting channel and a filter net, the filter net is laid on one side of the collecting channel, the bottom of the collecting channel is attached to the surface of the independent geotextile component, and the collecting channel is installed at a lower position when the independent geotextile component is laid.

[0011] Furthermore, a receiving hole and an insertion port are respectively provided at both ends of the collecting channel, and the insertion port is used to be embedded in the receiving hole, and the collecting channels on two adjacent independent geotextile components are interconnected.

[0012] Furthermore, the diversion mechanism includes a conveying pipe, a pressure plate and a dredging component. A connecting sleeve and a sealing plug are respectively provided at both ends of the conveying pipe. The sealing plug is used to be embedded in the interior of the connecting sleeve. A protective base is mounted on the surface of the independent geotextile component, and the conveying pipe passes through the interior of the protective base.

[0013] Furthermore, rubber pads are attached to both sides of the pressure plate, the bottom of the rubber pads is attached to the surface of the independent geotextile assembly, and a gap is provided between the pressure plate and the protective base, and the dredging assembly includes a pressing rod, an elastic sheet and an extrusion column.

[0014] Furthermore, a docking hole is provided at the top of the protective base, the top of the pressing rod is welded to the bottom of the pressure plate, the pressing rod passes downward from the inside of the docking hole, the bottom end of the pressing rod is connected to an elastic sheet, the bottom of the elastic sheet is welded with an extrusion column, and the side of the extrusion column is in contact with the inner wall of the conveying pipe.

[0015] Beneficial effects of the present invention: 1. The directional drainage composite geotextile installs and fixes each independent geotextile assembly through a fixing mechanism, and applies a large range of downward traction to each independent geotextile assembly from below. At the same time, it can also avoid the sinking problem of the supporting point of the bottom layer of the independent geotextile assembly, ensure that the surface of the independent geotextile assembly is smoother, and avoid water accumulation in the concave area.

[0016] 2. The directional drainage composite geotextile can comprehensively collect the water generated on the surface of the independent geotextile components and discharge it in a direction. When the water generated on each independent geotextile component flows toward the bottom area of ​​the slope, it will be blocked by the drainage component. After filtering the stones, the water, dust and sand can be diverted and transported to achieve the purpose of directional drainage.

[0017] 3. The soil blocks accumulated in the conveying pipe during the drainage process of the directional drainage composite geotextile can also be broken up. This process can be completed by stepping on it from the top and applying downward pressure with the conveying component, thereby reducing the probability of complete blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a directional drainage composite geotextile after laying; Figure 2 It is a schematic diagram of the structure of an independent geotextile assembly of the present invention; Figure 3 It is a structural schematic diagram of the fixing mechanism part of the present invention; Figure 4 is a side sectional view of the fixing mechanism of the present invention; Figure 5It is a connection schematic diagram of the flow guiding mechanism part of the present invention; Figure 6 It is a structural schematic diagram of the dredging component part of the present invention; Figure 7 It is a connection diagram of the drainage component part of the present invention; In the figure: 1. Independent geotextile assembly; 2. Fixing mechanism; 3. Drainage assembly; 4. Diversion mechanism; 5. Top pressure plate; 6. Anti-skid layer; 7. Column; 8. Bottom fixing plate; 9. Plug rod; 10. Plug sheet; 11. Connecting sheet; 12. Linkage rod; 13. Support rod; 14. Upper geomembrane; 15. Anti-leakage layer; 16. Lower geomembrane; 17. Adhesive layer; 18. Collection channel; 19. Filter screen; 20. Connecting sleeve; 21. Protective base; 22. Delivery pipeline; 23. Rubber pad; 24. Pressure plate; 25. Docking hole; 26. Clearing assembly; 27. Press rod; 28. Elastic sheet; 29. ​​Extrusion column; 30. Receiver hole; 31. Plug interface; 32. Gap; 33. Sealing plug; 34. Extension strip; 35. Separation cavity. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] See also Figures 1 to 7 The present invention provides the following technical solutions: a directional drainage composite geotextile, comprising a composite geotextile body, the composite geotextile body comprising a plurality of independent geotextile components 1, each independent geotextile component 1 is provided with a fixing mechanism 2, a drainage component 3 and a diversion mechanism 4, and the surface layer of the independent geotextile component 1 is provided with an upper geomembrane 14, the bottom of the upper geomembrane 14 is filled with an anti-leakage layer 15, the top of the anti-leakage layer 15 is attached with a lower geomembrane 16, the fixing mechanism 2 passes through the surface of the lower geomembrane 16, the anti-leakage layer 15 and the upper geomembrane 14 in sequence, the drainage component 3 is installed at one side edge of the independent geotextile component 1, the diversion mechanism 4 is attached to the middle position of the surface of the independent geotextile component 1, and the diversion mechanism 4 is connected with the inside of the drainage component 3, and an extension strip 34 is provided on one side of each independent geotextile component 1, and the side edge of each independent geotextile component 1 is pressed on the extension strip 34 of another independent geotextile component 1. The composite geotextile is used for laying on the slope or soil slope to provide waterproof protection for the bottom soil part.

[0021] When the present invention is used, multiple independent geotextile components 1 are directly arranged and laid on the surface of the slope to be protected, and the side of each independent geotextile component 1 is overlapped on the extension strip 34 of the adjacent independent geotextile component 1, and the two adjacent drainage components 3 are docked, and the diversion mechanism 4 after alignment with each other is also docked, so that the splicing process of each independent geotextile component 1 can be completed. At the same time, a fixing mechanism 2 is installed at the bottom of each independent geotextile component 1. When laying, it is necessary to press the bottom area of ​​the fixing mechanism 2 into the soil, and the bottom fixing plate 8 is partially pressed on the soil, and the top pressing plate 5 is pressed on the upper geomembrane 14, so as to achieve the purpose of fixing the entire independent geotextile component 1. After the subsequent laying is completed, the rainwater generated on the independent geotextile component 1 can be diverted along the slope toward the bottom, and the water collected on each independent geotextile component 1 can be discharged in a direction by means of the drainage component 3 and the diversion mechanism 4.

[0022] In this embodiment, the fixing mechanism 2 includes a top pressure plate 5, a bottom fixing plate 8 and a plug-in rod 9. A column 7 is inserted at the bottom of the top pressure plate 5. The bottom end of the column 7 is pressed on the surface of the bottom fixing plate 8, and the bottom of the column 7 and the bottom fixing plate 8 are separated. The plug-in rod 9 is inserted at the bottom of the bottom fixing plate 8. The surface of the top pressure plate 5 is attached with an anti-slip layer 6. The top pressure plate 5 is attached to the surface of the upper geomembrane 14. The bottom fixing plate 8 is symmetrically installed on both sides of the guide mechanism 4. The side of the top pressure plate 5 is inserted with a support rod 13. The side of the plug-in rod 9 is integrally formed with a plug-in sheet 10. The top of the plug-in sheet 10 is embedded with a connecting sheet 11, and the top of the connecting sheet 11 is inserted with a linkage rod 12. The surfaces of the upper geomembrane 14 and the lower geomembrane 16 are coated with an adhesive layer 17, the support rod 13 is fixed to the surface of the upper geomembrane 14 through the adhesive layer 17, the linkage rod 12 is fixed to the bottom of the lower geomembrane 16 through the adhesive layer 17, and the inner side of the anti-leakage layer 15 is provided with a separation cavity 35, and the separation cavity 35 is provided in the area between the support rod 13 and the linkage rod 12, and the anti-leakage layer 15 uses a polyurethane waterproof coating. Each independent geotextile assembly 1 is installed and fixed by a fixing mechanism 2, and a large-scale downward traction force is applied to each independent geotextile assembly 1 from below, which can also avoid the sinking problem of the bottom force point of the independent geotextile assembly 1, ensure that the surface of the independent geotextile assembly 1 is smoother, and avoid water accumulation in the concave area.

[0023] Specifically, during construction and laying, the bottom plug-in rod 9 and the plug-in sheet 10 are directly embedded under the soil by pressing. At this time, the top linkage rod 12 can be pulled by the plug-in sheet 10, and the linkage rod 12 is bonded and fixed to the bottom of the lower geomembrane 16 through the adhesive layer 17. Therefore, the linkage rod 12 can apply a downward pulling force to the lower geomembrane 16 to ensure that the entire independent geotextile assembly 1 can be fixed downward on the soil, and the bottom fixing plate 8 is attached to the surface of the soil, and the top pressure plate 5 partially presses the side support rod 13 on the upper geomembrane 14 with the help of the adhesive layer 17. Therefore, even if the bottom has been connected by the linkage rod 12 By pulling the lower geomembrane 16 of the linear area toward the bottom, the upper geomembrane 14 can still be partially propped up by the top support rod 13, ensuring that the upper geomembrane 14 on the surface always remains flat. This process will also be supported by the separation cavity 35 between the upper geomembrane 14 and the lower geomembrane 16 to avoid the linkage effect of the sinking of the lower geomembrane 16 on the upper geomembrane 14, thereby ensuring that the upper geomembrane 14 on the subsequent surface will not accumulate water due to depressions. At the same time, the anti-slip layer 6 is used to provide a walking area to reduce the probability of slipping when workers walk on the surface of the independent geotextile assembly 1.

[0024] In this embodiment, the drainage component 3 includes a collecting channel 18 and a filter screen 19. The filter screen 19 is laid on one side of the collecting channel 18. The bottom of the collecting channel 18 is attached to the surface of the independent geotextile component 1, and the collecting channel 18 is installed at a lower position when the independent geotextile component 1 is laid. The two ends of the collecting channel 18 are respectively provided with a receiving hole 30 and a plug interface 31. The plug interface 31 is used to be embedded in the inside of the receiving hole 30. The collecting channels 18 on two adjacent independent geotextile components 1 are interconnected. The water generated on the surface of the independent geotextile component 1 can be fully collected and directed. When the water generated on each independent geotextile component 1 flows toward the bottom area of ​​the slope, it will be blocked by the drainage component 3. After the stones are filtered, the water, dust and sand can be diverted and transported to achieve the purpose of directional drainage.

[0025] Specifically, when the generated rainwater flows downward along the surface of the independent geotextile assembly 1, it will pass through the filter screen 19 into the collecting channel 18, and further flow toward the middle guide mechanism 4 through the collecting channel 18, thereby achieving the purpose of directional discharge of water. The filter screen 19 partially blocks the stones, and can transport the generated dust and sand toward the inside of the collecting channel 18, reducing the probability of the filter screen 19 being partially blocked.

[0026] In this embodiment, the diversion mechanism 4 includes a conveying pipe 22, a pressure plate 24 and a dredging assembly 26. The two ends of the conveying pipe 22 are respectively provided with a connecting sleeve 20 and a sealing plug 33. The sealing plug 33 is used to be embedded in the inside of the connecting sleeve 20. The surface of the independent geotextile assembly 1 is mounted with a protective base 21, and the conveying pipe 22 passes through the inside of the protective base 21. Rubber pads 23 are mounted on both sides of the pressure plate 24. The bottom of the rubber pad 23 is mounted on the surface of the independent geotextile assembly 1, and a gap 32 is set between the pressure plate 24 and the protective base 21. The dredging assembly 26 includes a pressing rod 27, an elastic sheet 28 and an extrusion column 29. A docking hole 25 is provided at the top of the protection base 21, and the top of the pressing rod 27 is welded to the bottom of the pressure plate 24. The pressing rod 27 passes downward from the inside of the docking hole 25. An elastic sheet 28 is connected to the bottom of the pressing rod 27. A squeezing column 29 is welded to the bottom of the elastic sheet 28. The side of the squeezing column 29 fits the inner wall of the conveying pipe 22. The soil blocks accumulated in the conveying pipe 22 during the drainage process can also be broken. This process can be completed by stepping on the top and cooperating with the conveying assembly to apply downward pressure, thereby reducing the probability of complete blockage.

[0027] Specifically, after the water is transported to the diversion mechanism 4 with the help of the drainage component 3, it will flow along the conveying pipe 22, and the sand and soil entrained in the water will directly settle and agglomerate at the bottom of the conveying pipe 22 after drying in the later stage. At this time, the pressure plate 24 can be pressed on the top in the form of stepping, and the pressure plate 24 can be moved downward to control the movement of the conveying component. In this process, pressure will be applied to the elastic sheet 28 at the bottom through the pressing rod 27, and the elastic sheet 28 will move along the inside of the conveying pipe 22 through the squeezing column 29 at the bottom. Finally, the two pressing columns at the bottom will crush the agglomerated sand and soil generated at the bottom end of the inner wall of the conveying pipe 22, and the debris generated after crushing will be discharged synchronously when the independent geotextile component 1 diverts and discharges the water in the subsequent process, so as to reduce the probability of the sand and soil completely blocking the entire conveying pipe 22.

[0028] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A directional drainage composite geotextile, comprising a composite geotextile body, characterized in that: The composite geotextile body comprises a plurality of independent geotextile components (1), each independent geotextile component (1) is provided with a fixing mechanism (2), a drainage component (3) and a diversion mechanism (4), and an upper geomembrane (14) is provided on the surface of the independent geotextile component (1), the bottom of the upper geomembrane (14) is filled with an anti-seepage layer (15), and a lower geomembrane (16) is attached to the top of the anti-seepage layer (15), and the fixing mechanism (2) is sequentially connected from the lower geomembrane (16), the anti-seepage layer (15), and the lower geomembrane (16). 5) and the surface of the upper geomembrane (14), the drainage component (3) is installed at the edge of one side of the independent geotextile component (1), the diversion mechanism (4) is attached to the middle position of the surface of the independent geotextile component (1), and the diversion mechanism (4) is connected to the inside of the drainage component (3), and an extension strip (34) is provided on one side of each independent geotextile component (1), and the side edge of each independent geotextile component (1) is pressed on the extension strip (34) of another independent geotextile component (1).

2. A directional drainage composite geotextile according to claim 1, characterized in that: The fixing mechanism (2) comprises a top pressure plate (5), a bottom fixing plate (8) and a plug-in rod (9); a column (7) is inserted at the bottom of the top pressure plate (5); the bottom end of the column (7) is pressed against the surface of the bottom fixing plate (8), and the bottom of the column (7) and the bottom fixing plate (8) are in a separated state; and a plug-in rod (9) is inserted at the bottom of the bottom fixing plate (8).

3. A directional drainage composite geotextile according to claim 2, characterized in that: The surface of the top pressure plate (5) is mounted with an anti-slip layer (6), the top pressure plate (5) is mounted on the surface of the upper geomembrane (14), and the bottom fixing plate (8) is symmetrically mounted on both sides of the guide mechanism (4).

4. A directional drainage composite geotextile according to claim 3, characterized in that: A support rod (13) is inserted into the side of the top pressure plate (5), a plug-in sheet (10) is integrally formed on the side of the plug-in rod (9), a connecting sheet (11) is embedded on the top of the plug-in sheet (10), and a linkage rod (12) is inserted into the top of the connecting sheet (11).

5. A directional drainage composite geotextile according to claim 4, characterized in that: The surfaces of the upper geomembrane (14) and the lower geomembrane (16) are both coated with an adhesive layer (17); the support rod (13) is fixed to the surface of the upper geomembrane (14) via the adhesive layer (17); the linkage rod (12) is fixed to the bottom of the lower geomembrane (16) via the adhesive layer (17); a separation cavity (35) is provided on the inner side of the anti-leakage layer (15); and the separation cavity (35) is provided in the area between the support rod (13) and the linkage rod (12); and the anti-leakage layer (15) adopts a polyurethane waterproof coating.

6. The directional drainage composite geotextile according to claim 2, characterized in that: The drainage component (3) comprises a collecting channel (18) and a filter screen (19), wherein the filter screen (19) is laid on one side of the collecting channel (18), the bottom of the collecting channel (18) is attached to the surface of the independent geotextile component (1), and when the independent geotextile component (1) is laid, the collecting channel (18) is installed at a lower position.

7. A directional drainage composite geotextile according to claim 6, characterized in that: The two ends of the collecting channel (18) are respectively provided with a receiving hole (30) and an insertion port (31), and the insertion port (31) is used to be embedded in the receiving hole (30), and the collecting channels (18) on two adjacent independent geotextile components (1) are interconnected.

8. The directional drainage composite geotextile according to claim 6, characterized in that: The flow guide mechanism (4) comprises a conveying pipe (22), a pressure plate (24) and a dredging assembly (26); a connecting sleeve (20) and a sealing plug (33) are respectively provided at both ends of the conveying pipe (22); the sealing plug (33) is used to be embedded in the interior of the connecting sleeve (20); a protective base (21) is mounted on the surface of the independent geotextile assembly (1), and the conveying pipe (22) passes through the interior of the protective base (21).

9. A directional drainage composite geotextile according to claim 8, characterized in that: Rubber pads (23) are attached to both sides of the pressure plate (24), the bottom of the rubber pad (23) is attached to the surface of the independent geotextile assembly (1), and a gap (32) is provided between the pressure plate (24) and the protective base (21). The dredging assembly (26) comprises a pressing rod (27), an elastic sheet (28) and an extrusion column (29).

10. The directional drainage composite geotextile according to claim 9, characterized in that: A docking hole (25) is provided at the top of the protective base (21); the top of the pressing rod (27) is welded to the bottom of the pressure plate (24); the pressing rod (27) passes downward from the inside of the docking hole (25); the bottom end of the pressing rod (27) is connected to an elastic sheet (28); the bottom of the elastic sheet (28) is welded to an extrusion column (29); the side of the extrusion column (29) is in contact with the inner wall of the conveying pipe (22).

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