Construction method of high anti-seepage composite curtain wall

Abstract

The invention discloses a construction method of a high anti-seepage composite curtain wall. The method comprises the following steps: S1, constructing in soil to form a groove section; s2, preparing an HDPE (high-density polyethylene) film; s3, an assembly type tool box is put down at the side end of the groove section; s4, a single HDPE film is put down into the groove section; s5, pressurizing in each bag of the assembly type tool box; s6, curing materials are poured into the two sides of the HDPE film; s7, a next groove section close to the groove section is formed through construction; s8, the assembly type tool box in the previous groove section is pulled out; s9, the construction of the steps S2-S6 is repeated in the next groove section; and S10, repeating the steps S1-S9 for multiple times to form the continuous anti-seepage composite curtain wall. According to the construction method of the high anti-seepage composite curtain wall, it can be effectively guaranteed that the HDPE film is located in the center of the groove section when the HDPE film is vertically laid in the vertically-excavated groove, the curing materials are evenly distributed on the two sides of the film, protection is formed on the anti-seepage film, cooperative seepage prevention is achieved, and the problem of protection of film joints constructed in sequence is solved.

Description

Technical Field

[0001] The invention relates to the technical fields of water conservancy, environmental protection and geotechnical engineering, and in particular to a construction method of a high-impermeability composite curtain wall. Background Art

[0002] With the development and progress of society, the requirements for environmental protection and resource conservation in the fields of water conservancy, environmental protection and geotechnical engineering are becoming increasingly higher. Therefore, how to effectively prevent groundwater infiltration and pollutant migration has become an important research topic.

[0003] Traditional anti-seepage technology generally uses materials such as clay, bentonite, and concrete. Although it can achieve the purpose of anti-seepage to a certain extent, it has problems such as complex construction, high cost, and poor durability. Using polymer membrane as the main anti-seepage material can avoid the above problems. Among them, HDPE membrane, as a highly efficient anti-seepage material, is widely used in various engineering fields.

[0004] HDPE (high-density polyethylene) membrane has good anti-seepage performance, chemical stability and durability, and can effectively prevent the penetration and diffusion of groundwater and pollutants. However, there are still some problems in laying HDPE membrane vertically in a vertically excavated trench: on the one hand, since HDPE membrane is a flexible material, the traditional laying method is to add a counterweight to the bottom of the HDPF membrane, or use external force to press it down and put it into the trench section. It is often difficult to ensure that the HDPE membrane is located in the middle of the trench section, and the verticality cannot be guaranteed. For this, the general practice is to lay the HDPE membrane on one side of the trench wall, and fill the remaining large space of the trench section with solidifying materials. However, in this way, the solidifying materials and the anti-seepage membrane cannot effectively work together; on the other hand, when the flexible anti-seepage membrane is laid in the vertical trench section, the trench section constructed in advance needs to be solidified with materials. The solidifying materials have greater fluidity and will enter the joints or locks of the membrane, greatly affecting the subsequent membrane connection, thereby reducing the effectiveness of the membrane anti-seepage and causing low reliability of the joints. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a construction method for a high-anti-seepage composite curtain wall, which can effectively ensure that the HDPE membrane is located in the center of the groove section when the HDPE membrane is vertically laid in the vertically excavated groove, and the solidified material is evenly distributed on both sides of the membrane, thereby protecting the anti-seepage membrane and coordinating the anti-seepage. At the same time, it effectively solves the problem of protecting the membrane joints constructed successively, avoids damage to the membrane joints and locks constructed earlier during the curing of the groove section, and ensures the long-term stability and anti-seepage performance of the HDPE membrane.

[0006] According to one aspect of the present invention, a construction method of a high-impermeability composite curtain wall is provided, comprising the following steps: S1: construct a trench section in the soil; S2: configured with HDPE film; S3: placing an assembled tool box at the side end of the trough section; S4: placing a single HDPE film into the groove section, wherein a film joint at one end of the HDPE film is connected to a film joint constructed in advance, and a film joint at the other end is connected to a groove on the side of the assembled tool box, and two bags are built in at the upper and lower ends of the side of the assembled tool box respectively; S5: Inflate and pressurize the two bags of the assembled tool box with air or water to clamp the membrane joints; S6: pouring curing material on both sides of the HDPE film to cure the groove section; S7: constructing the next slot section adjacent to the slot section; S8: removing the assembled tool box in the previous slot section; S9: repeating the construction of steps S2 to S6 in the next slot section, and connecting the membrane joints at the ends of the HDPE membranes in the two slot sections to form an anti-seepage composite curtain wall; S10: Repeat steps S1 to S9 multiple times to form a continuous anti-seepage composite curtain wall.

[0007] In some embodiments, in step S1, a slotting machine or a trenching machine or a chain saw slotting machine is used to perform the slotting construction. The benefit of this is that a specific method of constructing and forming the slot section is described.

[0008] In some embodiments, in step S2, the length of the HDPE film is consistent with the width of the slot segment. This is beneficial in that the length requirement of the HDPE film is described, the HDPE film can be smoothly installed in the slot segment and the HDPE film in each slot segment is continuous.

[0009] In some embodiments, in step S3, when the HDPE film in the trough section is the starting width, the assembled tool box is placed on both sides of the trough section. This is beneficial in that it describes a method for placing an assembled tool box in a trough section when the HDPE film is the starting width.

[0010] In some embodiments, in step S3, when the HDPE film in the trough section is a connecting web, the assembled tool box is placed only on one side of the trough section. This is beneficial in that it describes a method for placing an assembled tool box in a trough section when the HDPE film is a connecting web.

[0011] In some embodiments, in step S4, the groove extends to the center of the assembled tool box, and the membrane connector is connected to the center of the assembled tool box through the groove. The benefit is that the specific structure of the assembled tool box and the specific situation of the connection with the membrane connector are further described.

[0012] In some embodiments, in step S5, the two bags are inflated and pressurized with air or water, and the membrane connector is sandwiched in the middle. Then, when the curing material is poured in step S6, the curing material outside the assembled tool box cannot enter the groove. The benefit of this is that it describes the beneficial effect of inflating or pressurizing the two bags.

[0013] In some embodiments, in step S6, the curing material is uniformly and symmetrically poured onto both sides of the HDPE film using a conduit. The invention is beneficial in that a specific method of pouring the curing material is described.

[0014] In some embodiments, in step S6, the solidifying material is fluidized solidified soil. The benefit of this is that it describes the types of solidifying materials that can be selected for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A flow chart of a construction method of a high-impermeability composite curtain wall according to an embodiment of the present invention; Figure 2 The present invention is a schematic structural diagram of an anti-seepage composite curtain wall produced by a construction method of a high anti-seepage composite curtain wall according to an embodiment of the present invention.

[0016] Figure 3 for Figure 1 The schematic diagram of the structure of the first groove section formed in the soil is shown; Figure 4 for Figure 1 A schematic diagram of the structure of a dedicated assembled tool box placed on both sides of the slot section is shown; Figure 5 for Figure 1 The schematic diagram of the structure in which a single HDPE film is placed in a slot section is shown; Figure 6 for Figure 5 The structural schematic diagram of the assembled tool box shown; Figure 7 for Figure 1 A schematic diagram of the structure of each bag of the assembled tool box when it is inflated with air or pressurized with water; Figure 8 for Figure 1 The schematic diagram of the structure when the curing material is poured on both sides of the HDPE film is shown; Fig. 9 for Figure 1 The schematic diagram of the structure when the next adjacent slot section is formed during construction is shown; Fig.10 for Figure 1 The schematic diagram of the structure of the assembled tool box when the previous slot section is removed is shown.

[0017] In the figure: soil 1, trough section 2, HDPE membrane 3, membrane joint 4, assembled tool box 5, groove 6, bladder 7, and solidifying material 8. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, the method consists of multiple steps for forming Figure 2 The anti-seepage composite curtain wall shown in the figure is composed of a plurality of HDPE membranes 3 connected in sequence, and the ends of each HDPE membrane 3 are connected through a membrane joint 4, and the anti-seepage composite curtain wall is set in the soil 1, and the solidifying material 8 is poured into the soil 1.

[0020] The steps of the method are described below respectively.

[0021] S1: Figure 3 As shown, a trench section 2 is constructed in the soil 1 .

[0022] In this step, a grooving machine, a trenching machine, a chain saw grooving machine or other equipment may be used to perform the grooving construction.

[0023] S2: Configure HDPE film 3.

[0024] The length of the HDPE film 3 matches the width of the slot section 2 .

[0025] S3: Figure 4 As shown, a special assembly tool box 5 is placed at the side end of the trough section 2.

[0026] Among them, if the HDPE film 3 in the trough section 2 is the starting width, the assembled tool box 5 needs to be placed on both sides of the trough section 2. If the HDPE film 3 in the trough section 2 is all connecting width, the assembled tool box 5 only needs to be placed on one side of the trough section 2.

[0027] S4: Figure 5 As shown, a single HDPE membrane 3 is lowered into the trough section 2, wherein the membrane joint 4 at one end of the HDPE membrane 3 is connected to the membrane joint 4 constructed in advance, and the membrane joint 4 at the other end is connected to the assembled tool box 5, thereby ensuring that the HDPE membrane 3 is in the center position in the trough section 2.

[0028] like Figure 6 As shown, a groove 6 extending to the center of the assembled tool box 5 is formed on the side surface, and two bags 7 are built into the upper and lower ends of the side surface respectively. The membrane connector 4 at the end of the HDPE membrane 3 is connected to the center of the assembled tool box 5 through the groove 6.

[0029] S5: Figure 7 As shown, the two bags 7 of the assembled tool box 5 are inflated and pressurized with air or water.

[0030] After pressurization, the two bladder bags 7 expand and can clamp the membrane connector 4 at the end of the HDPE membrane 3 between the two bladder bags 7 .

[0031] S6: Figure 8 As shown, curing material 8 is poured on both sides of the HDPE film 3 to cure the trough section 2.

[0032] In this step, the curing material 8 can be uniformly and symmetrically poured on both sides of the conduit HDPE film 3. In step S5, since the membrane joint 4 at the end of the HDPE film 3 is tightly clamped between the two bags 7, the slurry of the curing material 8 on the outside of the assembled tool box 5 cannot enter the groove 6, thereby protecting the membrane joint 4.

[0033] Preferably, the solidifying material 8 is a suitable material such as fluidized solidified soil.

[0034] S7: Fig. 9 As shown, the next trough section 2 adjacent to the trough section 2 is constructed.

[0035] When constructing the next trough section 2, the assembled tool box 5 of the previous trough section 2 can protect the membrane joint 4 at the end of the HDPE membrane 3 from being mechanically damaged.

[0036] S8: Fig.10 As shown, after the construction of the next slot section 2 is completed, the assembled tool box 5 in the previous slot section 2 is removed.

[0037] S9: Repeat the construction of steps S2 to S6 in the next slot section 2, and connect the membrane joints 4 at the ends of the HDPE membranes 3 in the two slot sections 2 to form a Figure 2 Anti-seepage composite curtain wall.

[0038] The two membrane joints 4 at the adjacent ends of the two HDPE membranes 3 in the two slot sections 2 are connected to form a continuous membrane material.

[0039] S10: Repeat steps S1 to S9 multiple times to form a continuous anti-seepage composite curtain wall with multiple trough sections 2.

[0040] The construction method of a high-impermeability composite curtain wall in the present invention mainly has the following beneficial effects: 1. Through innovative construction technology and material application, it can effectively ensure that the HDPE membrane is located in the center of the trough section with high verticality, and the solidified material is evenly distributed on both sides of the membrane, thus protecting the anti-seepage membrane and coordinating anti-seepage; 2. It effectively solves the problem of protecting the membrane joints constructed in succession, avoids the damage to the membrane joints and lock buckles constructed in advance during the curing of the trough section, and ensures the long-term stability and anti-seepage performance of the HDPE membrane; 3. It provides an efficient, economical and environmentally friendly solution to problems such as groundwater infiltration and pollutant migration in the fields of water conservancy, environmental protection and geotechnical engineering, and has important practical application value and market prospects.

[0041] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A construction method for a high-impermeability composite curtain wall, characterized in that: The following steps are included S1: constructing a trench section (2) in the soil (1); S2: configured with HDPE film (3); S3: placing an assembled tool box (5) at the side end of the groove section (2); S4: lowering a single HDPE film (3) into the groove section (2), wherein a film joint (4) at one end of the HDPE film (3) is connected to a previously constructed film joint (4), and a film joint (4) at the other end is connected to a groove (6) on the side of the assembled tool box (5), and two bags (7) are respectively built into the upper and lower ends of the side of the assembled tool box (5); S5: inflating or pressurizing the two bags (7) of the assembled tool box (5) with air or water to clamp the membrane connector (4); S6: pouring a curing material (8) on both sides of the HDPE film (3) to cure the trough section (2); S7: constructing a next trough section (2) adjacent to the trough section (2); S8: removing the assembled tool box (5) in the previous slot section (2); S9: repeating the construction of steps S2 to S6 in the next trough section (2), and connecting the membrane joints (4) at the ends of the HDPE membranes (3) in the two trough sections (2) to form an anti-seepage composite curtain wall; S10: Repeat steps S1 to S9 multiple times to form a continuous anti-seepage composite curtain wall.

2. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S1, a trenching machine, a trenching machine or a chain saw trenching machine is used to perform trenching construction.

3. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S2, the length of the HDPE film (3) matches the width of the slot section (2).

4. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S3, when the HDPE film (3) in the trough section (2) is at the initial width, the assembled tool box (5) is placed on both sides of the trough section (2).

5. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S3, when the HDPE film (3) in the trough section (2) is a connecting web, the assembled tool box (5) is placed only on one side of the trough section (2).

6. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S4, the groove (6) extends to the center of the assembled tool box (5), and the membrane connector (4) is connected to the center of the assembled tool box (5) through the groove (6).

7. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S5, the two bags (7) are expanded after being inflated with air or pressurized with water, and the membrane joint (4) is sandwiched in the middle. When the curing material (8) is poured in step S6, the curing material (8) outside the assembled tool box (5) cannot enter the groove (6).

8. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S6, the curing material (8) is uniformly and symmetrically poured onto both sides of the HDPE film (3) using a conduit.

9. The construction method of a high-impermeability composite curtain wall according to claim 1, characterized in that: In step S6, the solidified material (8) is fluidized solidified soil.

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