A flexible vertical high-density polyethylene membrane anti-seepage module and use method

Abstract

The invention relates to a flexible vertical high-density polyethylene film anti-seepage module and a use method thereof. The single-sided vertical anti-seepage wall is installed by digging a trench outside a set area; hanging multiple anti-seepage modules I in the trench, and inserting the vertical support I on one side of each anti-seepage module I into the vertical support I of an adjacent anti-seepage module I; the rectangular surface vertical anti-seepage wall is installed by digging a rectangular trench outside a set area; hanging multiple anti-seepage modules I in four trenches and connecting them, replacing an anti-seepage module I in an adjacent trench at a right angle of the rectangular trench with an anti-seepage module II, inserting the vertical support II on one side of the anti-seepage module II into the vertical support I of an adjacent anti-seepage module I, and inserting the vertical support II on the other side of the anti-seepage module II into the vertical support I of an adjacent anti-seepage module I; filling a water-resistant sealing material into an inner cavity formed at the connection of multiple vertical supports; filling the gaps of multiple anti-seepage modules in the trench with composite bentonite mortar; and the overall structure is simple and convenient for construction and assembly.

Description

Technical Field

[0001] The invention relates to a flexible vertical high-density polyethylene film anti-seepage module and a use method thereof, which is used for vertical anti-seepage projects such as mining, petrochemical, water conservancy, and garbage landfill. Background Art

[0002] Vertical anti-seepage technology is a means to solve this type of problem. It mainly uses underground barriers to seal pollutants or change the direction of groundwater flow to achieve the purpose of controlling the horizontal migration of pollution.

[0003] At present, continuous wall technology is widely used in petrochemical, mining and water conservancy projects, but its shortcomings are:

[0004] The continuous wall technology also brings about the problems of difficult handling of excavated soil, difficulty in ensuring bottom embedment, high requirements for verticality control, excessively high project costs, and especially short project life, and prone to cracking and leakage as the groundwater level changes.

[0005] In response to the inadequacy of rigid continuous walls, countries around the world have developed and used a variety of flexible vertical anti-seepage systems. Compared with rigid continuous wall technology, flexible vertical anti-seepage technology not only solves the above problems, but also has the characteristics of extremely low permeability and good corrosion resistance. However, flexible vertical anti-seepage technology also has problems such as poor horizontal flatness, high construction requirements, difficulty in interconnection, and too many prefabricated parts. Summary of the invention

[0006] In view of the defects of the prior art, the present invention provides a flexible vertical high-density polyethylene film anti-seepage membrane module, which mainly utilizes the anti-seepage membrane module to achieve underground barrier and storage of pollutants or change the flow direction of groundwater to achieve the purpose of controlling the horizontal migration of pollution.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a flexible vertical high-density polyethylene membrane anti-seepage module, including a high-density polyethylene membrane, characterized in that: the anti-seepage module is an anti-seepage module I and an anti-seepage module II, and the anti-seepage module I includes a vertical support I, a horizontal support I, an angle steel tip I, and a hanging piece I;

[0008] The anti-seepage module II includes vertical support II, horizontal support II, angle steel tip II, and hanging parts II;

[0009] The vertical support I and the vertical support II are both U-shaped polyvinyl chloride profiles;

[0010] The transverse support I is composed of angle steel and connecting steel plates, and rectangular connecting steel plates are welded on both end surfaces of the angle steel;

[0011] The U-shaped surfaces of the two vertical supports Ⅰ are arranged at intervals corresponding to each other, and a transverse support Ⅰ is respectively arranged at the upper and lower ends of the two vertical supports Ⅰ, and the inner surfaces of the two vertical supports Ⅰ correspond to each other. The connecting steel plates on both sides of the two transverse supports Ⅰ are respectively fixed to the U-shaped surfaces of the two vertical supports Ⅰ by bolts to form a rectangular frame, and the top of the transverse support Ⅰ at the upper end and the upper end surfaces of the two vertical supports Ⅰ are in a horizontal plane, and the side surface of the transverse support Ⅰ at the upper end and the U-shaped side surface of the two vertical supports Ⅰ are in a horizontal plane, and the bottom surface of the transverse support Ⅰ at the lower end and the lower end surfaces of the two vertical supports Ⅰ are in a horizontal plane, and the side surface of the transverse support Ⅰ at the lower end and the U-shaped side surface of the two vertical supports Ⅰ are in a horizontal plane, and at least two lifting parts Ⅰ are arranged on the transverse support Ⅰ at the upper end, and several angle steel tips Ⅰ are welded at intervals on the bottom surface of the transverse support Ⅰ at the lower end, and a high-density polyethylene film is welded on the outer horizontal surface of the rectangular frame;

[0012] The transverse support II is composed of angle steel and connecting steel plates, and rectangular connecting steel plates are welded on both end surfaces of the angle steel;

[0013] Two vertical supports II are arranged at intervals, the U-shaped surface of one vertical support II corresponds to the U-shaped side surface of the other vertical support II, a transverse support II is arranged at the upper and lower ends of the two vertical supports II, the inner surfaces of the two transverse supports II correspond to each other, the connecting steel plates on one side of the two transverse supports II are fixed together with the U-shaped surface of one vertical support II by bolts, and the connecting steel plates on the other side of the two transverse supports II are fixed together with the U-shaped side surface of the other vertical support II by bolts to form a rectangular frame, and the upper surface of the upper transverse support II and the upper end surfaces of the two vertical supports II are in a horizontal plane The side of the upper transverse support II and the U-shaped side of the two vertical supports II are in a horizontal plane, the bottom of the lower transverse support II and the lower end of the two vertical supports II are in a horizontal plane, the side of the lower transverse support II and the U-shaped side of the two vertical supports II are in a horizontal plane, at least two lifting parts I are provided on the upper transverse support II, and several pieces of angle steel tips II are welded at intervals on the bottom of the lower transverse support II. A piece of high-density polyethylene film is welded on the outer horizontal plane of the rectangular frame, and the high-density polyethylene film extends to the side corresponding to the U-shaped side of the vertical support II.

[0014] A method for using a flexible vertical high-density polyethylene membrane anti-seepage module, characterized in that:

[0015] 1. The installation method of a single vertical anti-seepage wall in the uncontaminated area of ​​the pollution anti-seepage area is as follows:

[0016] The first step is to dig a trench outside the uncontaminated area of ​​the designated pollution prevention area;

[0017] The second step is to hang the first anti-seepage module I on one side of the trench by a hoisting machine;

[0018] The third step is to lift the second anti-seepage module I so that the U-shaped opening of the vertical support I on one side of the second anti-seepage module I is inserted into the U-shaped opening of the vertical support I on one side of the first anti-seepage module I, that is, one side outer surface and the other side inner surface of the U-shaped opening of the vertical support I on one side of the second anti-seepage module I are overlapped with one side inner surface and the other side outer surface of the U-shaped opening of the vertical support I on the first anti-seepage module I, and the two vertical support I U-shaped openings are butt-jointed to form a vertical inner cavity;

[0019] The fourth step is to lift the third anti-seepage module I so that the U-shaped opening of the vertical support I on one side of the third anti-seepage module I is inserted into the U-shaped opening of the vertical support I on the other side of the second anti-seepage module I, that is, the inner surface on one side and the outer surface on the other side of the U-shaped opening of the vertical support I on one side of the third anti-seepage module I are overlapped with the outer surface on one side and the inner surface on the other side of the U-shaped opening of the vertical support I on the other side of the second anti-seepage module I, and the two U-shaped openings of the vertical support I are butt-jointed to form a vertical inner cavity;

[0020] The fifth step is to lift the fourth anti-seepage module I so that the U-shaped opening of the vertical support I on one side of the fourth anti-seepage module I is inserted into the U-shaped opening of the vertical support I on the other side of the third anti-seepage module I, that is, one side outer surface and the other side inner surface of the U-shaped opening of the vertical support I on one side of the fourth anti-seepage module I are overlapped with one side inner surface and the other side outer surface of the U-shaped opening of the vertical support I on the other side of the third anti-seepage module I, and the two vertical support I U-shaped openings are butt-jointed to form a vertical inner cavity;

[0021] In the above manner, multiple anti-seepage modules I can be connected to the other side of the trench;

[0022] The high-density polyethylene membranes of each two adjacent anti-seepage modules I face opposite directions, that is, the high-density polyethylene membranes of the first anti-seepage module I and the third anti-seepage module I face one side, and the high-density polyethylene membranes of the second anti-seepage module I and the fourth anti-seepage module I face the other side;

[0023] Step 6: Fill the inner cavity where the multiple anti-seepage modules I are connected together with water-resistant sealing material, so as to achieve the overall connection and leakage-free sealing of the multiple anti-seepage modules I;

[0024] Step 7: Finally, the gaps between the multiple anti-seepage modules I in the trench are backfilled with composite bentonite mortar, and the multiple connected anti-seepage modules I and the composite bentonite mortar together form a single-sided vertical anti-seepage wall;

[0025] 2. The installation method of rectangular vertical anti-seepage wall in the uncontaminated area of ​​the pollution anti-seepage area is as follows:

[0026] In the first step, a rectangular trench is excavated outside the uncontaminated area of ​​the set pollution prevention area;

[0027] According to the first to fifth steps of the single-sided vertical anti-seepage wall installation method, complete the installation of multiple anti-seepage modules I in the four grooves;

[0028] In the second step, the connection method at the four right angles of the rectangular groove is as follows:

[0029] Replace an anti-seepage module I in a groove adjacent to the rectangular groove at a right angle with an anti-seepage module II, and overlap one side outer surface and the other side inner surface of the U-shaped opening of the vertical support II on one side of the anti-seepage module II with one side inner surface and the other side outer surface of the U-shaped opening of the vertical support I of the adjacent anti-seepage module I, respectively, and form a vertical inner cavity after the vertical support I and the vertical support II U-shaped opening are butt-jointed, and one side outer surface and the other side inner surface of the U-shaped opening of the vertical support II on the other side of the anti-seepage module II are respectively overlapped with one side inner surface and the other side outer surface of the U-shaped opening of an anti-seepage module I in another groove adjacent to the right angle, and form a vertical inner cavity after the vertical support I and the vertical support II U-shaped opening are butt-jointed, so far, the connection of the anti-seepage module at a right angle of the rectangular groove is completed;

[0030] The connection method of the anti-seepage modules at the other three right angles of the rectangular groove is the same as the connection method in the second step above;

[0031] The third step is to fill the vertical inner cavity where the multiple anti-seepage modules I and the anti-seepage modules I and II are connected together with water-resistant sealing materials, so as to realize the overall connection and leakage-free sealing of the multiple anti-seepage modules;

[0032] In the fourth step, the gaps between the multiple anti-seepage modules I and the anti-seepage modules II in the rectangular trench are filled with the composite bentonite mortar, and the multiple connected anti-seepage modules I and the anti-seepage modules II and the composite bentonite mortar together form a rectangular vertical anti-seepage wall;

[0033] A single vertical anti-seepage wall of the rectangular vertical anti-seepage wall is removed to form a U-shaped vertical anti-seepage wall;

[0034] Two adjacent single-sided vertical anti-seepage walls at a right angle to the rectangular vertical anti-seepage wall are removed to form an L-shaped vertical anti-seepage wall;

[0035] Other regular or irregular shaped vertical anti-seepage area connection methods can be constructed by referring to the connection method of the rectangular area and adjusting the installation angle of the anti-seepage module II.

[0036] The beneficial effects of the present invention are:

[0037] The vertical supports of anti-seepage module I and anti-seepage module II are made of U-shaped polyvinyl chloride profiles, and the horizontal supports are made of angle steel and rectangular connecting steel plate structures. The vertical supports and horizontal supports are combined to form a rectangular frame, and a piece of high-density polyethylene film is welded to the outside of the rectangular frame to ensure the flatness of the high-density polyethylene film and solve the problem that it is difficult to overlap the high-density polyethylene film when the flatness is not good.

[0038] The angle steel tip structure design at the bottom of the rectangular frame allows the anti-seepage membrane module to penetrate vertically into the bottom of the formation and has a good supporting effect.

[0039] The anti-seepage module I and the anti-seepage module II have the characteristics of simple and firm overall structure, easy construction and assembly, and low cost.

[0040] Multiple anti-seepage modules I can be combined into a single-sided vertical anti-seepage wall, and multiple anti-seepage modules I and anti-seepage modules II can be combined into an L-shaped vertical anti-seepage wall, a U-shaped vertical anti-seepage wall, or a rectangular vertical anti-seepage wall, which is suitable for the isolation and sealing of underground pollutants in various polluted anti-seepage areas or unpolluted areas. It can realize the underground isolation and sealing of pollutants or change the flow direction of groundwater to achieve the purpose of controlling the horizontal migration of pollution.

[0041] When connecting multiple anti-seepage modules, it is only necessary to align and embed the U-shaped openings of the connected anti-seepage modules and pour water-resistant sealing material into the formed vertical inner cavity, thereby achieving overall connection and leakage-free sealing of the multiple anti-seepage modules, and solving the problem of contamination and leakage that is easily caused at the connection points in the vertical flexible anti-seepage technology.

[0042] All construction is carried out on-site using bulk materials, which not only facilitates transportation but also greatly reduces the difficulty of construction, saves a large number of prefabricated structural parts in the early stage, ensures the sealing effect and effectively reduces the construction and construction costs.

[0043] The invention can ensure that the entire anti-seepage system is continuous and leak-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the structure of the anti-seepage module I of the invention;

[0045] Figure 2 for Figure 1 A top view of the structure;

[0046] Figure 3 This is a schematic diagram of the structure of the anti-seepage module II;

[0047] Figure 4 for Figure 3 A top view of the structure;

[0048] Figure 5 It is a structural schematic diagram of a single-sided vertical anti-seepage wall of the present invention;

[0049] Figure 6 for Figure 5 A magnified view of structure A;

[0050] Figure 7 for Figure 5 A magnified view of structure B;

[0051] Figure 8 It is a structural schematic diagram of the connection between the anti-seepage module I and the anti-seepage module II of the present invention;

[0052] Fig. 9 for Figure 8 A top view of

[0053] Fig.10 for Fig. 9 Magnified view of structure C. DETAILED DESCRIPTION

[0054] like Figures 1 to 4 As shown, a flexible vertical high-density polyethylene membrane anti-seepage module includes a high-density polyethylene membrane 3, and the anti-seepage modules are anti-seepage module I1 and anti-seepage module II2.

[0055] The anti-seepage module Ⅰ1 includes a vertical support Ⅰ1-1, a horizontal support Ⅰ1-2, an angle steel tip Ⅰ1-3, and a hanging piece Ⅰ1-4.

[0056] The anti-seepage module Ⅱ2 includes a vertical support Ⅱ2-1, a horizontal support Ⅱ2-2, an angle steel tip Ⅱ2-3, and a hoisting part Ⅱ2-4.

[0057] Both the vertical support Ⅰ1-1 and the vertical support Ⅱ2-1 are U-shaped polyvinyl chloride profiles.

[0058] The transverse support Ⅰ1-2 is composed of an angle steel 1-2-1 and a connecting steel plate 1-2-2. Rectangular connecting steel plates 1-2-2 are welded to both end surfaces of the angle steel 1-2-1.

[0059] The U-shaped surfaces of the two vertical supports Ⅰ1-1 are arranged at intervals corresponding to each other, and a transverse support Ⅰ1-2 is respectively arranged at the upper and lower ends of the two vertical supports Ⅰ1-1. The inner surfaces of the two vertical supports Ⅰ1-1 correspond to each other. The connecting steel plates 1-2-2 on both sides of the two transverse supports Ⅰ1-2 are respectively fixed to the U-shaped surfaces of the two vertical supports Ⅰ1-1 by bolts to form a rectangular frame. The top of the upper transverse support Ⅰ1-2 and the upper end surfaces of the two vertical supports Ⅰ1-1 are in a horizontal plane, and the side surface of the upper transverse support Ⅰ1-2 and the U-shaped side surface of the two vertical supports Ⅰ1-1 are in a horizontal plane.

[0060] The bottom surface of the lower transverse support Ⅰ1-2 and the lower end surfaces of the two vertical supports Ⅰ1-1 are in a horizontal plane, the side surface of the lower transverse support Ⅰ1-2 and the U-shaped side surface of the two vertical supports Ⅰ1-1 are in a horizontal plane, at least two hanging parts Ⅰ1-4 are welded on the upper transverse support Ⅰ1-2, and several angle steel tips Ⅰ1-3 are welded at intervals on the bottom surface of the lower transverse support Ⅰ1-2, and a piece of high-density polyethylene film 3 is welded on the outer horizontal surface of the rectangular frame.

[0061] The transverse support II 2-2 is composed of an angle steel 2-2-1 and a connecting steel plate 2-2-2. Rectangular connecting steel plates 2-2-2 are welded to both end surfaces of the angle steel 2-1.

[0062] The two vertical supports Ⅱ2-1 are arranged at intervals, and the U-shaped surface of one vertical support Ⅱ2-1 corresponds to the U-shaped side surface 2-1-1 of the other vertical support Ⅱ2-1. A transverse support Ⅱ2-2 is respectively arranged at the upper and lower ends of the two vertical supports Ⅱ2-1, and the inner surfaces of the two transverse supports Ⅱ2-2 correspond to each other. The connecting steel plates 2-2-2 on one side of the two transverse supports Ⅱ2-2 are fixed to the U-shaped surface of one vertical support Ⅱ2-1 by bolts, and the connecting steel plates 2-2-2 on the other sides of the two transverse supports Ⅱ2-2 are fixed to the U-shaped side surface 2-1-1 of the other vertical support Ⅱ2-1 by bolts to form a rectangular frame. The upper surface of the transverse support Ⅱ2-2 at the upper end is connected to the upper surfaces of the two vertical supports Ⅱ2-1. The end face is a horizontal plane, the side face of the upper transverse support Ⅱ2-2 and the U-shaped side face of the two vertical supports Ⅱ2-1 are a horizontal plane, the bottom face of the lower transverse support Ⅱ2-2 and the lower end faces of the two vertical supports Ⅱ2-1 are a horizontal plane, the side face of the lower transverse support Ⅱ2-2 and the U-shaped side face of the two vertical supports Ⅱ2-1 are a horizontal plane, at least two lifting parts Ⅰ1-4 are provided on the upper transverse support Ⅱ2-2, and several angle steel tips Ⅱ2-3 are welded at intervals on the bottom face of the lower transverse support Ⅱ2-2, and a piece of high-density polyethylene film 3 is welded on the outer horizontal plane of the rectangular frame, and the high-density polyethylene film 3 extends to the outside of the side face corresponding to the U-shaped side face 2-1-1 of the vertical support Ⅱ2-1.

[0063] like Figures 5 to 10 As shown, a method for using a flexible vertical high-density polyethylene membrane anti-seepage module;

[0064] 1. The installation method of a single vertical anti-seepage wall in the uncontaminated area of ​​the pollution anti-seepage area is as follows:

[0065] The first step is to dig a trench outside the uncontaminated area of ​​the designated pollution prevention area.

[0066] The second step is to use a lifting machine to hang the first anti-seepage module Ⅰ1 on one side of the trench.

[0067] The third step is to lift the second anti-seepage module Ⅰ1 so that the U-shaped opening of the vertical support Ⅰ1-1 on one side of the second anti-seepage module Ⅰ1 is inserted into the U-shaped opening of the vertical support Ⅰ1-1 on one side of the first anti-seepage module Ⅰ1, that is, the outer side on one side and the inner side on the other side of the U-shaped opening of the vertical support Ⅰ1-1 on one side of the second anti-seepage module Ⅰ1 are overlapped with the inner side on one side and the outer side on the other side of the U-shaped opening of the vertical support Ⅰ1-1 on the first anti-seepage module Ⅰ1 respectively, and the two vertical supports Ⅰ1-1 U-shaped openings form a vertical inner cavity 4 after being connected.

[0068] The fourth step is to lift the third anti-seepage module Ⅰ1 so that the U-shaped mouth of the vertical support Ⅰ1-1 on one side of the third anti-seepage module Ⅰ1 is inserted into the U-shaped mouth of the vertical support Ⅰ1-1 on the other side of the second anti-seepage module Ⅰ1, that is, the inner surface on one side and the outer surface on the other side of the vertical support Ⅰ1-1 U-shaped mouth on one side of the third anti-seepage module Ⅰ1 are overlapped with the outer surface on one side and the inner surface on the other side of the vertical support Ⅰ1-1 U-shaped mouth on the other side of the second anti-seepage module Ⅰ1 respectively, and the two vertical supports Ⅰ1-1 U-shaped mouths are connected to form a vertical inner cavity 4.

[0069] The fifth step is to lift the fourth anti-seepage module Ⅰ1 so that the vertical support Ⅰ1-1U-shaped opening on one side of the fourth anti-seepage module Ⅰ1 is inserted into the vertical support Ⅰ1-1U-shaped opening on the other side of the third anti-seepage module Ⅰ1, that is, the outer surface on one side and the inner surface on the other side of the vertical support Ⅰ1-1U-shaped opening on one side of the fourth anti-seepage module Ⅰ1 are overlapped with the inner surface on one side and the outer surface on the other side of the vertical support Ⅰ1-1U-shaped opening on the other side of the third anti-seepage module Ⅰ1, and the two vertical supports Ⅰ1-1U-shaped openings are connected to form a vertical inner cavity 4;

[0070] In the above manner, multiple anti-seepage modules Ⅰ1 can be connected to the other side of the groove;

[0071] The high-density polyethylene membranes 3 of each two adjacent anti-seepage modules Ⅰ1 face opposite directions, that is, the high-density polyethylene membranes 3 of the first and third anti-seepage modules Ⅰ1 face one side, and the high-density polyethylene membranes 3 of the second and fourth anti-seepage modules Ⅰ1 face the other side.

[0072] Step 6: Fill the inner cavity 4 where the multiple anti-seepage modules Ⅰ1 are connected together with water-resistant sealing material, so as to achieve the overall connection and leakage-free sealing of the multiple anti-seepage modules Ⅰ1;

[0073] In the seventh step, the gaps between the multiple anti-seepage modules Ⅰ1 in the trench are finally filled with composite bentonite mortar. The multiple anti-seepage modules Ⅰ1 connected together and the composite bentonite mortar together form a single-sided vertical anti-seepage wall.

[0074] 2. The installation method of rectangular vertical anti-seepage wall in the uncontaminated area of ​​the pollution anti-seepage area is as follows:

[0075] The first step is to dig a rectangular trench outside the uncontaminated area of ​​the set pollution anti-seepage area, and complete the installation of multiple anti-seepage modules Ⅰ1 in the four trenches according to the first to fifth steps of the single-sided vertical anti-seepage wall installation method.

[0076] In the second step, the connection method at the four right angles of the rectangular groove is as follows:

[0077] Replace an anti-seepage module Ⅰ1 in a groove adjacent to the rectangular groove at a right angle with an anti-seepage module Ⅱ2, and overlap one side outer surface and the other side inner surface of the U-shaped opening of the vertical support Ⅱ2-1 on one side of the anti-seepage module Ⅱ2 with one side inner surface and the other side outer surface of the U-shaped opening of the vertical support Ⅰ1-1 of the adjacent anti-seepage module Ⅰ1, and form a vertical inner cavity 4 after the vertical support Ⅰ1-1 and the vertical support Ⅱ2-1 U-shaped opening are butt-jointed, and one side outer surface and the other side inner surface of the U-shaped opening of the vertical support Ⅱ2-1 on the other side of the anti-seepage module Ⅱ2 are respectively overlapped with one side inner surface and the other side outer surface of the U-shaped opening of the vertical support Ⅰ1-1 of an anti-seepage module Ⅰ1 in another groove adjacent to the right angle, and form a vertical inner cavity 4 after the vertical support Ⅰ1-1 and the vertical support Ⅱ2-1 U-shaped opening are butt-jointed, and thus the connection of the anti-seepage module at a right angle of the rectangular groove is completed;

[0078] The connection method of the anti-seepage modules at the remaining three right angles of the rectangular groove is the same as the second step connection method mentioned above.

[0079] In the third step, water-resistant sealing materials are filled into the inner cavity 4 where the multiple anti-seepage modules Ⅰ1 and the anti-seepage modules Ⅰ1 and Ⅱ2 are connected together, thereby achieving the overall connection and leak-free sealing of the multiple anti-seepage modules.

[0080] In the fourth step, the gaps between the multiple anti-seepage modules Ⅰ1 and the anti-seepage modules Ⅱ2 in the rectangular groove are filled with the composite bentonite mortar, and the multiple anti-seepage modules Ⅰ1 and the anti-seepage modules Ⅱ2 connected together and the composite bentonite mortar together form a rectangular vertical anti-seepage wall;

[0081] A single vertical anti-seepage wall of the rectangular vertical anti-seepage wall is removed to form a U-shaped vertical anti-seepage wall;

[0082] The two adjacent single-sided vertical anti-seepage walls at a right angle of the rectangular vertical anti-seepage wall are removed to form an L-shaped vertical anti-seepage wall.

[0083] The connection method of other regular or irregular shaped vertical anti-seepage areas can be constructed by referring to the connection method of rectangular areas and appropriately adjusting the installation angle of anti-seepage module II.

Claims

1. A flexible vertical high-density polyethylene membrane anti-seepage module, comprising a high-density polyethylene membrane (3), characterized in that: The anti-seepage modules are anti-seepage module I (1) and anti-seepage module II (2), wherein the anti-seepage module I (1) comprises a vertical support I (1-1), a horizontal support I (1-2), an angle steel tip I (1-3), and a hanging piece I (1-4); The anti-seepage module II (2) comprises a vertical support II (2-1), a horizontal support II (2-2), an angle steel tip II (2-3), and a hoisting member II (2-4); The vertical support I (1-1) and the vertical support II (2-1) are both U-shaped polyvinyl chloride profiles; The transverse support I (1-2) is composed of an angle steel I (1-2-1) and a connecting steel plate I (1-2-2), and rectangular connecting steel plates I (1-2-2) are welded to both end surfaces of the angle steel I (1-2-1); The U-shaped surfaces of the two vertical supports I (1-1) are arranged at intervals corresponding to each other, and a transverse support I (1-2) is respectively arranged at the upper and lower ends of the two vertical supports I (1-1). The inner surfaces of the two vertical supports I (1-1) correspond to each other, and the connecting steel plates I (1-2-2) on both sides of the two transverse supports I (1-2) are respectively fixed to the U-shaped surfaces of the two vertical supports I (1-1) by bolts to form a rectangular frame. The upper surface of the transverse support I (1-2) at the upper end is in a horizontal plane with the upper end surfaces of the two vertical supports I (1-1), and the side surface of the transverse support I (1-2) at the upper end is in a horizontal plane with the two vertical supports I (1-1). The U-shaped side surface of the vertical support I (1-1) is a horizontal plane, the bottom surface of the lower transverse support I (1-2) and the lower end surfaces of the two vertical supports I (1-1) are a horizontal plane, the side surface of the lower transverse support I (1-2) and the U-shaped side surfaces of the two vertical supports I (1-1) are a horizontal plane, at least two hanging parts I (1-4) are arranged on the upper transverse support I (1-2), a plurality of angle steel tips I (1-3) are welded at intervals on the bottom surface of the lower transverse support I (1-2), and a high-density polyethylene film (3) is welded on the outer horizontal surface of the rectangular frame; The transverse support II (2-2) is composed of an angle steel II (2-2-1) and a connecting steel plate II (2-2-2), and rectangular connecting steel plates II (2-2-2) are welded to both end surfaces of the angle steel II (2-2-1); The two vertical supports II (2-1) are arranged at intervals, the U-shaped surface of one vertical support II (2-1) corresponds to the U-shaped side surface (2-1-1) of the other vertical support II (2-1), and a transverse support II (2-2) is respectively arranged at the upper and lower ends of the two vertical supports II (2-1), the inner surfaces of the two transverse supports II (2-2) correspond to each other, the connecting steel plates II (2-2-2) on one side of the two transverse supports II (2-2) are fixed to the U-shaped surface of one vertical support II (2-1) by bolts, and the connecting steel plates II (2-2-2) on the other side of the two transverse supports II (2-2) are fixed to the U-shaped side surface (2-1-1) of the other vertical support II (2-1) by bolts to form a rectangular frame, and the upper surface of the upper transverse support II (2-2) is fixed to the two vertical supports II (2-1) ) is a horizontal plane, the side surface of the upper transverse support II (2-2) and the U-shaped side surface of the two vertical supports II (2-1) are a horizontal plane, the bottom surface of the lower transverse support II (2-2) and the lower end surface of the two vertical supports II (2-1) are a horizontal plane, the side surface of the lower transverse support II (2-2) and the U-shaped side surface of the two vertical supports II (2-1) are a horizontal plane, at least two hanging parts I (1-4) are arranged on the upper transverse support II (2-2), and several angle steel tips II (2-3) are welded at intervals on the bottom surface of the lower transverse support II (2-2), and a piece of high-density polyethylene film (3) is welded on the outer horizontal surface of the rectangular frame, and the high-density polyethylene film (3) extends to the side corresponding to the U-shaped side surface (2-1-1) of the vertical support II (2-1).

2. A method for using the flexible vertical high-density polyethylene membrane anti-seepage module according to claim 1, characterized in that:

1. The installation method of a single vertical anti-seepage wall in the uncontaminated area of ​​the pollution anti-seepage area is as follows: The first step is to dig a trench outside the uncontaminated area of ​​the designated pollution prevention area; The second step is to use a lifting machine to lift the first anti-seepage module I (1) to one side of the trench; The third step is to lift the second anti-seepage module I (1) so that the U-shaped opening of the vertical support I (1-1) on one side of the second anti-seepage module I (1) is inserted into the U-shaped opening of the vertical support I (1-1) on one side of the first anti-seepage module I (1), that is, the outer surface on one side and the inner surface on the other side of the U-shaped opening of the vertical support I (1-1) on one side of the second anti-seepage module I (1) are overlapped with the inner surface on one side and the outer surface on the other side of the U-shaped opening of the vertical support I (1-1) on the first anti-seepage module I (1), and the two U-shaped openings of the vertical support I (1-1) are butt-jointed to form a vertical inner cavity (4); Step 4: hoist the third anti-seepage module I (1) so that the U-shaped opening of the vertical support I (1-1) on one side of the third anti-seepage module I (1) is inserted into the U-shaped opening of the vertical support I (1-1) on the other side of the second anti-seepage module I (1), that is, the inner surface on one side and the outer surface on the other side of the U-shaped opening of the vertical support I (1-1) on one side of the third anti-seepage module I (1) are overlapped with the outer surface on one side and the inner surface on the other side of the U-shaped opening of the vertical support I (1-1) on the other side of the second anti-seepage module I (1), and the two U-shaped openings of the vertical support I (1-1) are butt-jointed to form a vertical inner cavity (4); Step 5: Lift the fourth anti-seepage module I (1) so that the U-shaped opening of the vertical support I (1-1) on one side of the fourth anti-seepage module I (1) is inserted into the U-shaped opening of the vertical support I (1-1) on the other side of the third anti-seepage module I (1), that is, the outer surface on one side and the inner surface on the other side of the U-shaped opening of the vertical support I (1-1) on one side of the fourth anti-seepage module I (1) are overlapped with the inner surface on one side and the outer surface on the other side of the U-shaped opening of the vertical support I (1-1) on the other side of the third anti-seepage module I (1), and the two U-shaped openings of the vertical support I (1-1) are butt-jointed to form a vertical inner cavity (4); In the above manner, multiple anti-seepage modules I (1) can be connected to the other side of the trench; The high-density polyethylene films (3) of each two adjacent anti-seepage modules I (1) face opposite directions, i.e., the high-density polyethylene films (3) of the first anti-seepage module I (1) and the third anti-seepage module I (1) face one side, and the high-density polyethylene films (3) of the second anti-seepage module I (1) and the fourth anti-seepage module I (1) face the other side; Step 6: Fill the inner cavity (4) where the multiple anti-seepage modules I (1) are connected together with a water-resistant sealing material, thereby achieving overall connection and leak-proof sealing of the multiple anti-seepage modules I (1); Step 7: Finally, the gaps between the multiple anti-seepage modules I (1) in the trench are backfilled with composite bentonite mortar, so that the multiple connected anti-seepage modules I (1) and the composite bentonite mortar together form a single-sided vertical anti-seepage wall; 2. The installation method of rectangular vertical anti-seepage wall in the uncontaminated area of ​​the pollution anti-seepage area is as follows: In the first step, a rectangular trench is excavated outside the uncontaminated area of ​​the set pollution prevention area; According to the first to fifth steps of the single-sided vertical anti-seepage wall installation method, the multiple anti-seepage modules I (1) are installed in the four grooves; In the second step, the connection method at the four right angles of the rectangular groove is as follows: An anti-seepage module I (1) in a groove adjacent to the rectangular groove at a right angle is replaced with an anti-seepage module II (2). The outer side of one side of the U-shaped opening of the vertical support II (2-1) of the anti-seepage module II (2) and the inner side of the other side are respectively overlapped with the inner side of one side and the outer side of the U-shaped opening of the vertical support I (1-1) of the adjacent anti-seepage module I (1). The vertical support I (1-1) and the vertical support II (2-1) U-shaped opening are connected to form a vertical inner cavity (4). The outer side of one side and the inner side of the other side of the U-shaped opening of the U-shaped side (2-1-1) of the vertical support II (2-1) on the other side of the block II (2) are respectively overlapped with the inner side of one side and the outer side of the other side of the U-shaped opening of a piece of anti-seepage module I (1) of the vertical support I (1-1) in another adjacent groove at a right angle, and the U-shaped openings of the vertical support I (1-1) and the vertical support II (2-1) are butt-jointed to form a vertical inner cavity (4), thus completing the connection of the anti-seepage module at a right angle of the rectangular groove; The connection method of the anti-seepage modules at the other three right angles of the rectangular groove is the same as the connection method in the second step above; The third step is to fill the plurality of anti-seepage modules I (1) and the vertical inner cavity (4) where the anti-seepage modules I (1) and the anti-seepage modules II (2) are connected together with water-resistant sealing material, thereby achieving overall connection and leak-proof sealing of the plurality of anti-seepage modules; Step 4: Finally, the gaps between the plurality of anti-seepage modules I (1) and the anti-seepage modules II (2) in the rectangular trench are backfilled with the composite bentonite mortar, and the plurality of anti-seepage modules I (1) and the anti-seepage modules II (2) connected together and the composite bentonite mortar together form a rectangular vertical anti-seepage wall; A single vertical anti-seepage wall of the rectangular vertical anti-seepage wall is removed to form a U-shaped vertical anti-seepage wall; Two adjacent single-sided vertical anti-seepage walls at a right angle to the rectangular vertical anti-seepage wall are removed to form an L-shaped vertical anti-seepage wall; Other regular or irregular shaped vertical anti-seepage area connection methods can be constructed by referring to the connection method of the rectangular area and adjusting the installation angle of the anti-seepage module II (2).

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