Composite drainage isolation pad structure

Abstract

The utility model discloses a composite drainage isolation pad structure, which relates to the technical field of geotechnical materials and comprises a first water seepage layer, a reinforcing layer, a second water seepage layer, a water-resisting layer and a drainage layer which are sequentially arranged from top to bottom. The reinforcing layer comprises a reinforcing plate and a plurality of reinforcing rods, a plurality of circulation openings are formed in the reinforcing plate, the reinforcing rods are arranged at the bottom of the reinforcing plate, a matching groove is formed between every two adjacent reinforcing rods, and the matching grooves and the circulation openings are arranged in a matched mode; the first water seepage layer is arranged above the reinforcing plate, the second water seepage layer is arranged below the reinforcing rods, a plurality of water drainage openings are formed in the water-resisting layer, a plurality of water receiving grooves are formed in the water drainage layer, the water receiving grooves penetrate through the top of the water drainage layer and the two sides of the water drainage layer, and water drainage pipes are arranged in the water receiving grooves. And due to the fact that a flow guide structure is not arranged, the flowing state of water flow in a net-shaped filtering layer is disordered, and the drainage capacity is insufficient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical materials, in particular to a composite drainage and isolation pad structure. Background Art

[0002] A composite drainage and isolation pad is a multifunctional synthetic material, generally having drainage, isolation and protection functions. The composite drainage and isolation pad can effectively solve the problems of water accumulation and soil erosion existing in infrastructure construction, and is therefore often used in projects such as highway construction, railway construction and water conservancy projects.

[0003] The composite drainage and isolation pads in the prior art generally include an inner layer with a drainage function and filter layers arranged on both sides of the inner layer. Among them, the filter layer is a mesh structure, and the filter layer and the inner side are fixed by hot melt adhesive. Although it has a certain drainage function, since there is no diversion structure, when this structure of composite drainage and isolation pad is in use, the flow state of water in the mesh filter layer is relatively disordered, and the drainage capacity is insufficient.

[0004] In the utility model with the application number: CN201420489575.X and the publication number: CN204225082U, a composite drainage pad is disclosed, which includes an inner layer and filter layers respectively bonded to both sides of the inner layer. A plurality of parallel drainage grooves are provided on the inner layer. Although it can solve the problems of disordered water flow and insufficient drainage capacity, its isolation ability is weak, and there is a problem of being easily corroded. Summary of the Utility Model

[0005] Based on this, in view of the above problems, the utility model provides a composite drainage and isolation pad structure, which solves the problems that when the current composite drainage and isolation pad is in use, due to the lack of a diversion structure, the flow state of water in the mesh filter layer is relatively disordered and the drainage capacity is insufficient.

[0006] The technical solution of the utility model is as follows:

[0007] A composite drainage and isolation pad structure includes, from top to bottom in sequence, a first water-permeable layer, a strengthening layer, a second water-permeable layer, a water-proof layer and a drainage layer;

[0008] The strengthening layer includes a strengthening plate and a plurality of strengthening rods. A plurality of flow-through openings for water flow are provided on the strengthening plate, and the flow-through openings penetrate the strengthening plate from top to bottom. A plurality of strengthening rods are arranged at the bottom of the strengthening plate, and a matching groove is provided between adjacent two strengthening rods, and the matching groove is arranged in cooperation with the flow-through opening;

[0009] The first water seepage layer is arranged above the reinforcement plate, the second water seepage layer is arranged below several reinforcement rods, several drain openings are provided on the water barrier layer, and the drain openings penetrate the water barrier layer from top to bottom. Several water receiving grooves are provided on the drainage layer and are arranged in cooperation with several drain openings. The water receiving grooves penetrate the top and both sides of the drainage layer, and drain pipes are provided in several water receiving grooves.

[0010] Preferably, several arc-shaped protrusions are provided on the top of the reinforcement plate, spacing grooves are provided between several arc-shaped protrusions, several circulation openings are respectively arranged in the spacing grooves in cooperation, and the circulation openings penetrate the reinforcement plate from top to bottom. The first water seepage layer is arranged in conformity with the contour of the top of the reinforcement plate and is fixedly connected to the reinforcement plate.

[0011] Preferably, the second water seepage layer is arranged in conformity with the bottoms of several reinforcement rods and is fixedly connected to the reinforcement rods.

[0012] Preferably, both the first water seepage layer and the second water seepage layer are geotextiles.

[0013] Preferably, the reinforcement plate, the reinforcement rods and the arc-shaped protrusions are all made of glass fiber material, and the reinforcement plate, the reinforcement rods and the arc-shaped protrusions are integrally formed.

[0014] Preferably, the water barrier layer is a waterproof and breathable membrane.

[0015] Preferably, the water receiving groove includes a conical groove and a square groove. The conical groove is arranged above the square groove. The top of the conical groove is arranged in cooperation with the drain opening, and the bottom is communicated with the square groove. The drain pipe is arranged in the square groove.

[0016] Preferably, both the drainage layer and the drain pipes are made of plastic material.

[0017] Preferably, it further includes a pair of connecting plates which are respectively arranged on both sides of the first water seepage layer, the reinforcement layer, the second water seepage layer, the water barrier layer and the drainage layer, and are fixedly connected to the first water seepage layer, the reinforcement layer, the second water seepage layer, the water barrier layer and the drainage layer.

[0018] Preferably, a first connecting portion is provided on one of the connecting plates, and a second connecting portion is provided on the other connecting plate. The first connecting portion includes a fixing plate and a T-shaped insertion block. The T-shaped insertion block is integrally formed with the fixing plate, and the fixing plate is fixedly connected to the connecting plate. The second connecting portion includes a mating block, and a T-shaped slot which is arranged in cooperation with the T-shaped insertion block is provided on the mating block. The T-shaped insertion block can be inserted into the T-shaped slot in the adjacent composite drainage and isolation pad structure to fixedly connect the two composite drainage and isolation pad structures.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model improves the overall strength of the composite drainage isolation pad structure by setting a reinforcing layer and dividing the reinforcing layer into reinforcing plates and several reinforcing rods, thereby increasing the service life of the composite drainage isolation pad structure.

[0021] A circulation port is arranged on the reinforcing plate, and a mating groove is arranged between two adjacent reinforcing rods, so that the mating groove and the circulation port are in cooperation, enabling the water entering the first water-permeable layer to enter the second water-permeable layer through the circulation port and the mating groove.

[0022] A water barrier layer is arranged below the second water-permeable layer, and a drainage port is arranged on the water barrier layer. At the same time, a drainage layer is arranged below the water barrier layer, and a water receiving groove mating with several drainage ports is arranged on the drainage layer. Meanwhile, a drainage pipe is arranged in the water receiving groove, so that part of the water entering the second water-permeable layer can enter the drainage pipe in the water receiving groove of the drainage layer through the drainage port and the water receiving groove and then be discharged from the drainage pipe, and part of the water that cannot quickly pass through the drainage port on the water barrier layer and enter the drainage layer flows out through the mating groove.

[0023] Among them, the cooperation of the circulation port, the mating groove, the drainage port, the water receiving groove and the drainage pipe can play a guiding role in the entering water, thereby improving the drainage capacity of the composite drainage isolation pad structure, and solving the problems that the flow state of the water in the mesh filtering layer is relatively disordered and the drainage capacity is insufficient due to the lack of a guiding structure in the current composite drainage isolation pad during use. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram when two composite drainage isolation pad structures described in the embodiment of the utility model are spliced;

[0025] Figure 2 is an exploded structural diagram of a composite drainage isolation pad structure described in the embodiment of the utility model;

[0026] Figure 3 is a schematic structural diagram of the reinforcing layer described in the embodiment of the utility model Figure 1 ;

[0027] Figure 4 is a schematic structural diagram of the reinforcing layer described in the embodiment of the utility model Figure 2 ;

[0028] Figure 5 is a schematic structural diagram of the water barrier layer described in the embodiment of the utility model;

[0029] Figure 6 is a schematic structural diagram of the drainage layer described in the embodiment of the utility model;

[0030] Figure 7 is a schematic structural diagram of the first connecting part described in the embodiment of the utility model;

[0031] Figure 8 It is a schematic structural diagram of the second connecting part described in the embodiments of the present utility model;

[0032] Explanation of reference numerals:

[0033] 10 - First water-permeable layer, 20 - Reinforcement layer, 200 - Reinforcement plate, 201 - Reinforcement rod, 202 - Flow-through opening, 203 - Fitting groove, 204 - Arc-shaped protrusion, 205 - Spacing groove, 30 - Second water-permeable layer, 40 - Water-proof layer, 400 - Drainage opening, 50 - Drainage layer, 500 - Water-receiving groove, 501 - Drain pipe, 502 - Conical groove, 503 - Square groove, 60 - Connecting plate, 70 - First connecting part, 71 - Second connecting part, 700 - Fixed plate, 701 - T-shaped insertion block, 702 - Fitting block, 703 - T-shaped slot. Detailed implementation manners

[0034] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0035] Embodiment:

[0036] As Figures 1 to 6 shown, in order to solve the above problems, this embodiment discloses a composite drainage and isolation pad structure, which includes a first water-permeable layer 10, a reinforcement layer 20, a second water-permeable layer 30, a water-proof layer 40 and a drainage layer 50 arranged in sequence from top to bottom;

[0037] The reinforcement layer 20 includes a reinforcement plate 200 and a plurality of reinforcement rods 201. The reinforcement plate 200 is provided with a plurality of flow-through openings 202 for water flow. The flow-through openings 202 penetrate the reinforcement plate 200 from top to bottom. A plurality of reinforcement rods 201 are arranged at the bottom of the reinforcement plate 200, and a fitting groove 203 is provided between two adjacent reinforcement rods 201. The fitting groove 203 is arranged in cooperation with the flow-through opening 202;

[0038] The first water-permeable layer 10 is arranged above the reinforcement plate 200, the second water-permeable layer 30 is arranged below a plurality of reinforcement rods 201, the water-proof layer 40 is provided with a plurality of drainage openings 400, the drainage openings 400 penetrate the water-proof layer 40 from top to bottom, the drainage layer 50 is provided with a plurality of water-receiving grooves 500 arranged in cooperation with the plurality of drainage openings 400, the water-receiving grooves 500 penetrate the top and both sides of the drainage layer 50, and a drain pipe 501 is arranged in each of the plurality of water-receiving grooves 500.

[0039] In the present utility model, by providing the reinforcement layer 20 and dividing the reinforcement layer 20 into the reinforcement plate 200 and a plurality of reinforcement rods 201, the overall strength of the composite drainage and isolation pad structure is improved, and thus the service life of the composite drainage and isolation pad structure is prolonged.

[0040] A flow-through port 202 is provided on the reinforcement plate 200, and a mating groove 203 is provided between two adjacent reinforcement bars 201, so that the mating groove 203 cooperates with the flow-through port 202, enabling the water entering the first water-permeable layer 10 to enter the second water-permeable layer 30 through the flow-through port 202 and the mating groove 203.

[0041] A water-proof layer 40 is provided below the second water-permeable layer 30, and a drain port 400 is provided on the water-proof layer 40. At the same time, a drainage layer 50 is provided below the water-proof layer 40, and a water receiving groove 500 cooperating with a number of drain ports 400 is provided on the drainage layer 50. At the same time, a drain pipe 501 is provided in the water receiving groove 500, so that part of the water entering the second water-permeable layer 30 can enter the drain pipe 501 in the water receiving groove 500 of the drainage layer 50 through the drain port 400 and the water receiving groove 500, and then be discharged from the drain pipe 501. Part of the water that cannot quickly pass through the drain port 400 on the water-proof layer 40 and enter the drainage layer 50 flows out through the mating groove 203.

[0042] Among them, the cooperation of the flow-through port 202, the mating groove 203, the drain port 400, the water receiving groove 500 and the drain pipe 501 can play a guiding role in the entering water, thereby improving the drainage capacity of the composite drainage and isolation pad structure, and solving the problem that in the current composite drainage and isolation pad during use, due to the absence of a guiding structure, the flow state of the water in the mesh-like filter layer is relatively disordered and the drainage capacity is insufficient.

[0043] As Figure 3 shown, since the composite drainage and isolation pad structure is installed above the foundation, and other materials need to be filled on the top of the composite drainage and isolation pad structure, in order to facilitate the stable connection between the composite drainage and isolation pad structure described in the present invention and other materials, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a number of arc-shaped protrusions 204 are provided on the top of the reinforcement plate 200, an interval groove 205 is provided between the number of arc-shaped protrusions 204, a number of flow-through ports 202 are respectively arranged in the interval groove 205, and the flow-through ports 202 penetrate the reinforcement plate 200 from top to bottom. The first water-permeable layer 10 is arranged to fit the contour of the top of the reinforcement plate 200 and is fixedly connected to the reinforcement plate 200.

[0044] Preferably, the second water-permeable layer 30 is arranged to fit the bottom of the number of reinforcement bars 201 and is fixedly connected to the reinforcement bars 201.

[0045] Preferably, both the first water-permeable layer 10 and the second water-permeable layer 30 are geotextiles.

[0046] During use, place the composite drainage and isolation pad structure described in the present utility model above the foundation, and then fill other materials above the composite drainage and isolation pad structure. The filled materials will be in full contact with the first water-permeable layer 10, so that after the filled materials solidify, they can cooperate with the plurality of spaced grooves 205 formed by the plurality of arc-shaped protrusions 204, thereby achieving the effect of stable connection.

[0047] In order to facilitate the manufacture of the strengthening layer 20 and the stable connection between the strengthening layer 20, the first water-permeable layer 10 and the second water-permeable layer 30, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the reinforcing plate 200, the reinforcing rod 201 and the arc-shaped protrusion 204 are all made of fiberglass, and the reinforcing plate 200, the reinforcing rod 201 and the arc-shaped protrusion 204 are integrally formed.

[0048] The first water-permeable layer 10 and the second water-permeable layer 30 can be glued to the strengthening layer 20 by hot melt adhesive. Among them, the first water-permeable layer 10 is glued to the top of the reinforcing plate 200, and the second water-permeable layer 30 is glued to the bottom of the reinforcing rod 201.

[0049] Preferably, the water-proof layer 40 is a waterproof and breathable membrane.

[0050] The waterproof and breathable membrane can adopt the waterproof and breathable membrane in the prior art that can realize the functions of the present utility model, and its main structure is a sandwich structure of PP spunbond non-woven fabric, PE high-molecular breathable membrane and PP spunbond non-woven fabric.

[0051] As Figure 6 shown, in order to facilitate water diversion, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the water receiving groove 500 includes a conical groove 502 and a square groove 503. The conical groove 502 is arranged above the square groove 503. The top of the conical groove 502 is arranged in cooperation with the drain port 400, and the bottom is communicated with the square groove 503. The drain pipe 501 is arranged in the square groove 503.

[0052] Preferably, both the drainage layer 50 and the drain pipe 501 are made of plastic.

[0053] During use, the wider end of the conical groove 502 is arranged in cooperation with the drain port 400, and the narrower end is communicated with the square groove 503, so that the water entering from the drain port 400 can effectively enter the drain pipe 501 in the square groove 503 from the conical groove 502, thereby facilitating the diversion and discharge of water.

[0054] The plastic drainage layer 50 and the drain pipe 501 can effectively reduce the manufacturing cost, and at the same time have a certain ability to resist waterlogging erosion and soil erosion.

[0055] As Figures 1 to 2As shown in the figure, in order to enhance the connection stability between the first water-permeable layer 10, the reinforcement layer 20, the second water-permeable layer 30, the water-proof layer 40 and the drainage layer 50, this embodiment makes modifications on the basis of the above embodiment. The difference from the above embodiment is that it further includes a pair of connecting plates 60, which are respectively arranged on both sides of the first water-permeable layer 10, the reinforcement layer 20, the second water-permeable layer 30, the water-proof layer 40 and the drainage layer 50, and are fixedly connected to the first water-permeable layer 10, the reinforcement layer 20, the second water-permeable layer 30, the water-proof layer 40 and the drainage layer 50.

[0056] The connecting plates 60 can be glued to both sides of the first water-permeable layer, the reinforcement layer 20, the second water-permeable layer 30, the water-proof layer 40 and the drainage layer 50 by hot melt adhesive.

[0057] As Figures 7 to 8 shown, in order to facilitate the use of the composite drainage and isolation pad structure of the present utility model, this embodiment makes modifications on the basis of the above embodiment. The difference from the above embodiment is that a first connecting portion 70 is provided on one of the connecting plates 60, and a second connecting portion 71 is provided on the other connecting plate 60. The first connecting portion 70 includes a fixing plate 700 and a T-shaped insertion block 701, the T-shaped insertion block 701 is integrally formed with the fixing plate 700, the fixing plate 700 is fixedly connected to the connecting plate 60, the second connecting portion 71 includes a mating block 702, and a T-shaped slot 703 is provided on the mating block 702 for mating with the T-shaped insertion block 701. The T-shaped insertion block 701 can be inserted into the T-shaped slot 703 in the adjacent composite drainage and isolation pad structure to fixedly connect the two composite drainage and isolation pad structures.

[0058] During use, the T-shaped insertion block 701 in one composite drainage and isolation pad structure can be inserted into the T-shaped slot 703 in the adjacent composite drainage and isolation pad structure, and hot melt adhesive is added for fixation, so that the adjacent two composite drainage and isolation pad structures can be stably connected and have a certain tensile resistance.

[0059] The working principle of the present utility model:

[0060] In the present utility model, by providing the reinforcement layer 20 and dividing the reinforcement layer 20 into a reinforcement plate 200 and a plurality of reinforcement rods 201, the overall strength of the composite drainage and isolation pad structure is improved, and thus the service life of the composite drainage and isolation pad structure is extended.

[0061] A circulation port 202 is provided on the reinforcement plate 200, and a mating groove 203 is provided between two adjacent reinforcement rods 201 to form a mating between the mating groove 203 and the circulation port 202, so that the water entering from the first water-permeable layer 10 can enter the second water-permeable layer 30 through the circulation port 202 and the mating groove 203.

[0062] A water-proof layer 40 is provided below the second water seepage layer 30, and a drain outlet 400 is provided on the water-proof layer 40. At the same time, a drainage layer 50 is provided below the water-proof layer 40, and a water receiving tank 500 cooperating with a plurality of drain outlets 400 is provided on the drainage layer 50. At the same time, a drain pipe 501 is provided in the water receiving tank 500, so that part of the water entering the second water seepage layer 30 can enter the drain pipe 501 in the water receiving tank 500 of the drainage layer 50 through the drain outlet 400 and the water receiving tank 500, and then be discharged from the drain pipe 501. Part of the water cannot quickly enter the drainage layer 50 through the drain outlet 400 on the water-proof layer 40, and then flows out through the mating groove 203.

[0063] Among them, the cooperation of the circulation port 202, the mating groove 203, the drain outlet 400, the water receiving tank 500 and the drain pipe 501 can play a guiding role in the incoming water, thereby improving the drainage capacity of the composite drainage and isolation pad structure.

[0064] The above embodiments only represent the specific implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A composite drainage and isolation pad structure, characterized in that, It includes a first water-permeable layer (10), a reinforcement layer (20), a second water-permeable layer (30), a water-proof layer (40) and a drainage layer (50) which are arranged successively from top to bottom; The reinforcement layer (20) includes a reinforcement plate (200) and a number of reinforcement bars (201). A number of flow-through openings (202) for water flow are provided on the reinforcement plate (200). The flow-through openings (202) penetrate the reinforcement plate (200) from top to bottom. A number of reinforcement bars (201) are arranged at the bottom of the reinforcement plate (200), and a mating groove (203) is provided between adjacent two reinforcement bars (201). The mating groove (203) is arranged in cooperation with the flow-through openings (202); The first water-permeable layer (10) is arranged above the reinforcement plate (200), the second water-permeable layer (30) is arranged below a number of reinforcement bars (201). A number of drainage openings (400) are provided on the water-proof layer (40). The drainage openings (400) penetrate the water-proof layer (40) from top to bottom. A number of water receiving grooves (500) which are arranged in cooperation with a number of drainage openings (400) are provided on the drainage layer (50). The water receiving grooves (500) penetrate the top and both sides of the drainage layer (50). A drainage pipe (501) is provided in each of the number of water receiving grooves (500).

2. The composite drainage and isolation pad structure according to claim 1, characterized in that, A number of arc-shaped protrusions (204) are provided on the top of the reinforcement plate (200). A spacing groove (205) is provided between the number of arc-shaped protrusions (204). A number of flow-through openings (202) are respectively arranged in the spacing groove (205) in cooperation, and the flow-through openings (202) penetrate the reinforcement plate (200) from top to bottom. The first water-permeable layer (10) is arranged in conformity with the contour of the top of the reinforcement plate (200) and is fixedly connected to the reinforcement plate (200).

3. A composite drainage and isolation pad structure according to claim 2, characterized in that, The second water-permeable layer (30) is arranged in conformity with the bottom of a number of reinforcement bars (201) and is fixedly connected to the reinforcement bars (201).

4. A composite drainage and isolation pad structure according to claim 1 or 3, characterized in that, Both the first water-permeable layer (10) and the second water-permeable layer (30) are geotextiles.

5. The structure of a composite drainage and isolation mat according to claim 4, characterized in that, The reinforcement plate (200), the reinforcement bars (201) and the arc-shaped protrusions (204) are all made of fiberglass, and the reinforcement plate (200), the reinforcement bars (201) and the arc-shaped protrusions (204) are integrally formed.

6. A composite drainage and isolation pad structure according to claim 1, characterized in that, The water-proof layer (40) is a waterproof and breathable membrane.

7. A composite drainage and isolation pad structure according to claim 1, characterized in that, The water receiving groove (500) includes a conical groove (502) and a square groove (503). The conical groove (502) is arranged above the square groove (503). The top of the conical groove (502) is arranged in cooperation with the drainage opening (400), and the bottom is communicated with the square groove (503). The drainage pipe (501) is arranged in the square groove (503).

8. A composite drainage and isolation pad structure according to claim 1, characterized in that, Both the drainage layer (50) and the drainage pipe (501) are made of plastic.

9. A composite drainage and isolation pad structure according to claim 1, characterized in that, It also includes a pair of connecting plates (60). The pair of connecting plates (60) are respectively arranged on both sides of the first water-permeable layer (10), the reinforcement layer (20), the second water-permeable layer (30), the water-proof layer (40) and the drainage layer (50), and are fixedly connected to the first water-permeable layer (10), the reinforcement layer (20), the second water-permeable layer (30), the water-proof layer (40) and the drainage layer (50).

10. A composite drainage and isolation pad structure according to claim 9, characterized in that, One of the connecting plates (60) is provided with a first connecting portion (70), and the other connecting plate (60) is provided with a second connecting portion (71). The first connecting portion (70) includes a fixing plate (700) and a T-shaped insertion block (701). The T-shaped insertion block (701) is integrally formed with the fixing plate (700), and the fixing plate (700) is fixedly connected to the connecting plate (60). The second connecting portion (71) includes a mating block (702), and the mating block (702) is provided with a T-shaped slot (703) that is arranged to cooperate with the T-shaped insertion block (701). The T-shaped insertion block (701) can be inserted into the T-shaped slot (703) in an adjacent composite drainage and isolation pad structure to fixedly connect the two composite drainage and isolation pad structures.

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