Geomembrane structure with deformation compensation function

Abstract

The utility model discloses a kind of geomembrane structures with deformation compensation function, it is related to geomembrane technical field.The utility model includes geomembrane main part, the surface of geomembrane main part is provided with deformation compensation mechanism, the deformation compensation mechanism includes flexible band, the flexible band is set in the middle of geomembrane main part, the surface of the flexible band is provided with elastic connecting band.The utility model is by setting flexible band with main body integrated molding in the middle of geomembrane main part, and surface elastic connecting band is matched to constitute deformation compensation mechanism, integrated molding flexible band has good self-adapting telescopic capacity, cooperate the elastic recovery characteristics of elastic connecting band, when partial larger deformation is caused by ground subsidence, soil displacement etc., through self deformation offsets local tensile stress, effectively solve the problem that whole type anti-cracking layer in prior art is difficult to realize targeted deformation compensation, and membrane body is easily torn due to stress concentration.

Description

Technical Field

[0001] This utility model belongs to the field of geomembrane technology, and in particular relates to a geomembrane structure with deformation compensation function. Background Technology

[0002] Geomembranes need to withstand long-term erosion from external mechanical wear and ultraviolet radiation, while also ensuring the integrity of the seepage prevention at the joints to avoid safety hazards caused by leakage. Therefore, good deformation adaptability, stable structural strength, and reliable connection sealing are the core requirements for geomembrane structure design, directly affecting the seepage prevention effect and service life of the project.

[0003] Chinese patent application CN222936053U discloses a geomembrane grid, comprising a geomembrane body with several grooves on the top and several protrusions on the bottom. The inner cavity of the geomembrane body is provided with a crack-resistant layer. Through the design and use of the grooves and protrusions, when two sections of geomembrane overlap, they can restrain each other, thereby increasing the connection strength between the two sections without using bolts to penetrate the geomembrane, thus improving the practicality of the device.

[0004] The aforementioned geomembrane crack-resistant layers or composite structures are mostly integral designs, without reinforcing key areas where stress concentration is prone to occur. When faced with large local deformation, it is difficult to achieve deformation compensation, and the membrane is prone to tearing due to stress concentration. It cannot offset the local tensile stress caused by foundation settlement or soil displacement through adaptive expansion and contraction.

[0005] To address this issue, we provide a geomembrane structure with deformation compensation capabilities. Utility Model Content

[0006] The purpose of this invention is to provide a geomembrane structure with deformation compensation function. By cooperating with the geomembrane body and the deformation compensation mechanism, the problem that existing geomembrane structures are difficult to achieve deformation compensation when faced with large local deformation is solved.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model discloses a geomembrane structure with deformation compensation function, comprising a geomembrane body, a deformation compensation mechanism on the surface of the geomembrane body, and a flexible strip disposed in the middle of the geomembrane body. An elastic connecting strip is disposed on the surface of the flexible strip. The flexible strip and the geomembrane body are integrally formed. By placing the flexible strip in the stress area in the middle of the geomembrane body, in conjunction with the elastic connecting strip on the surface, the stress generated by local deformation can be directly received and buffered, preventing stress from spreading to the edges of the membrane. This solves the problem that existing integral structures cannot effectively offset local stress. The integral molding design of the flexible strip and the geomembrane body ensures the stability of both. Synchronous deformation under stress, with no gaps or loosening risks, effectively avoids deformation inconsistencies caused by splicing or bonding. The synergistic effect of the elastic connecting strip and the flexible strip further enhances the flexibility of the deformation compensation mechanism, enabling it to adapt to different degrees of local deformation and always maintain structural consistency with the geomembrane body. Through its own flexible expansion and contraction characteristics, the deformation compensation mechanism actively offsets local tensile stress caused by foundation settlement and soil displacement, reducing the risk of tearing of the geomembrane body due to stress concentration. At the same time, the integrated molding structure avoids the connection points becoming weak points, greatly improving the structural stability and crack resistance of the geomembrane under complex working conditions, and ensuring the continuous effectiveness of the overall seepage prevention function of the membrane.

[0009] The present invention is further configured such that connectors are provided on both sides of the geomembrane body, each connector including an overlapping edge. The overlapping edges are provided on both sides of the geomembrane body, and positioning holes are provided on both sides of the top of the overlapping edge. One side of the geomembrane body extends into the inner cavity of the overlapping edge. By providing overlapping edges on both sides of the geomembrane body and allowing one side of the geomembrane body to extend into the inner cavity of the overlapping edge, an embedded overlapping structure is formed, which greatly increases the contact area and fit during membrane splicing, avoiding the problem of weak connection caused by only surface adhesion in traditional overlapping.

[0010] The present invention is further configured such that a rivet is provided at the top of the positioning hole, and the overlapping edge is fixedly connected to the geomembrane body by the rivet. The rivet firmly fixes the overlapping edge to the geomembrane body, realizing the dual guarantee of mechanical fastening and embedded overlapping, and solving the problem of easy loosening of simple fitting or bonding.

[0011] The present invention is further configured such that the geomembrane body includes an outer membrane layer, and a buffer layer is fixedly connected to the inner wall of the outer membrane layer. The buffer layer can actively absorb external stress and prevent external forces from directly acting on the outer membrane layer and causing tearing. The outer membrane layer can protect the buffer layer from external mechanical wear and erosion, thereby improving the adaptability of the membrane under complex working conditions.

[0012] The present invention is further configured such that the outer membrane layer is made of polyethylene material and the buffer layer is made of elastic polyurethane foam material. The outer membrane layer is made of polyethylene material, which makes full use of the material’s excellent seepage prevention performance, chemical corrosion resistance and mechanical strength, to ensure the core seepage prevention function and structural stability of the geomembrane body and resist external erosion. The buffer layer is made of elastic polyurethane foam material, which, with its good elastic recovery and expansion characteristics, can efficiently bear and offset the stress generated by local deformation, and achieve targeted deformation compensation.

[0013] The present invention is further provided with a reinforcing rib at the bottom of the buffer layer. The reinforcing rib is made of rubber. By utilizing the properties of rubber material, which combines elasticity and strength, a reliable structural support is provided for the buffer layer without affecting its expansion and contraction deformation.

[0014] The present invention is further configured such that a honeycomb-shaped buffer hole is provided on the top of the buffer layer. The honeycomb-shaped buffer hole further optimizes the deformation buffering capacity of the buffer layer. The honeycomb structure can efficiently absorb external impact and tensile stress through its own deformation, providing sufficient space for the expansion and contraction of the buffer layer.

[0015] The present invention is further provided with a sealing gasket on the inner side of the overlapping edge, and the surface of the sealing gasket has a through hole corresponding to the positioning hole. The through hole allows the sealing gasket to fit between the overlapping edge and the geomembrane body, filling the gap at the splice.

[0016] The present invention has the following beneficial effects.

[0017] 1. This utility model establishes a deformation compensation mechanism by setting a flexible strip integrally formed with the main body in the middle of the geomembrane and combining it with an elastic connecting strip on the surface. The integrally formed flexible strip has good self-adaptive expansion and contraction capabilities. Combined with the elastic recovery characteristics of the elastic connecting strip, it can offset local tensile stress by its own deformation when large local deformations are caused by foundation settlement, soil displacement, etc. This effectively solves the problem that the integral anti-cracking layer in the prior art is difficult to achieve targeted deformation compensation and is prone to tearing due to stress concentration.

[0018] 2. This utility model adds a sealing gasket on the inner side of the overlap edge, and the surface of the sealing gasket has a through hole corresponding to the positioning hole, so that when the rivet is fixed, the sealing gasket can fit between the overlap edge and the geomembrane body, effectively filling the connection gap. The geomembrane body extends into the inner cavity of the overlap edge and is fastened by the rivet, forming a double protection structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a three-dimensional diagram of a geomembrane structure with deformation compensation function.

[0021] Figure 2 This is a bottom-view perspective of a geomembrane structure with deformation compensation function.

[0022] Figure 3 This is a three-dimensional view of a connector in a geomembrane structure with deformation compensation function.

[0023] Figure 4 This is a structural diagram of the geomembrane body in a geomembrane structure with deformation compensation function.

[0024] Figure 5 This is a three-dimensional diagram of a deformation compensation mechanism in a geomembrane structure with deformation compensation function.

[0025] In the attached diagram: 1. Geomembrane body; 11. Outer membrane layer; 12. Buffer layer; 2. Deformation compensation mechanism; 21. Flexible strip; 22. Elastic connecting strip; 3. Connector; 31. Overlap edge; 32. Positioning hole; 4. Rivet; 5. Reinforcing rib; 6. Honeycomb buffer hole; 7. Sealing gasket. Detailed Implementation

[0026] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-5 This utility model is a geomembrane structure with deformation compensation function, including a geomembrane body 1, the geomembrane body 1 including an outer membrane layer 11, a buffer layer 12 fixedly connected to the inner wall of the outer membrane layer 11, the outer membrane layer 11 is made of polyethylene material, the buffer layer 12 is made of elastic polyurethane foam material, the bottom of the buffer layer 12 is provided with reinforcing ribs 5, the reinforcing ribs 5 are made of rubber, the top of the buffer layer 12 is provided with honeycomb-shaped buffer holes 6, the surface of the geomembrane body 1 is provided with a deformation compensation mechanism 2, the deformation compensation mechanism 2 includes a flexible strip 21, the flexible strip 21 is located in the middle of the geomembrane body 1, the surface of the flexible strip 21 is provided with an elastic connecting strip 22, the flexible strip 21 and the geomembrane body 1 are integrally formed structures.

[0028] Specifically: By placing the flexible strip 21 in the stress area in the middle of the geomembrane body 1, in conjunction with the elastic connecting strip 22 on the surface, the stress generated by local deformation can be directly received and buffered, preventing stress from spreading to the edge of the membrane. This solves the problem that existing integral structures cannot effectively offset local stress. The flexible strip 21 and the geomembrane body 1 adopt an integral molding design, ensuring synchronous deformation of both under stress, without connection gaps or loosening risks, effectively avoiding deformation inconsistencies caused by splicing or bonding. The synergistic effect of the elastic connecting strip 22 and the flexible strip 21 further enhances the flexibility of the deformation compensation mechanism 2, enabling it to adapt to different degrees of local deformation and always maintain structural consistency with the geomembrane body 1. The deformation compensation mechanism 2, through its own flexible expansion and contraction characteristics, actively offsets the local tensile stress caused by foundation settlement and soil displacement, reducing the risk of tearing of the geomembrane body 1 due to stress concentration. At the same time, the integral molding structure avoids the connection points becoming weak points, significantly improving the structural stability and crack resistance of the geomembrane under complex working conditions. The buffer layer 12 is designed to actively absorb external stress, preventing direct force from acting on the outer membrane layer 11 and causing tearing. The outer membrane layer 11, in turn, protects the buffer layer 12 from external mechanical wear and erosion, enhancing the membrane's adaptability under complex working conditions. The outer membrane layer 11 is made of polyethylene, which fully utilizes the material's excellent impermeability, chemical corrosion resistance, and mechanical strength to ensure the core impermeability function and structural stability of the geomembrane body 1 and resist external erosion. The buffer layer 12 is made of elastic polyurethane foam, which, with its good elastic recovery and expansion characteristics, can efficiently bear and offset the stress generated by local deformation, achieving targeted deformation compensation. Utilizing the elasticity and strength of rubber materials, it provides reliable structural support for the buffer layer 12 without affecting its expansion and contraction. The honeycomb-shaped buffer holes 6 further optimize the deformation buffering capacity of the buffer layer 12. The honeycomb structure can efficiently absorb external impact and tensile stress through its own deformation, providing sufficient space for the expansion and contraction of the buffer layer 12.

[0029] Both sides of the geomembrane body 1 are provided with connectors 3. The connectors 3 include overlapping edges 31. The overlapping edges 31 are provided on both sides of the geomembrane body 1. Positioning holes 32 are opened on both sides of the top of the overlapping edges 31. Rivets 4 are provided on the top of the positioning holes 32. The overlapping edges 31 are fixedly connected to the geomembrane body 1 by the rivets 4. One side of the geomembrane body 1 extends into the inner cavity of the overlapping edges 31. A sealing gasket 7 is provided on the inner side of the overlapping edges 31. A through hole corresponding to the positioning hole 32 is opened on the surface of the sealing gasket 7.

[0030] Specifically: By setting overlapping edges 31 on both sides of the geomembrane body 1, and extending one side of the geomembrane body 1 into the inner cavity of the overlapping edge 31, an embedded overlapping structure is formed, which greatly increases the contact area and fit during membrane splicing. This avoids the problem of weak connection caused by the traditional overlapping which only has surface adhesion. The rivets 4 firmly fix the overlapping edge 31 to the geomembrane body 1, achieving dual protection of mechanical fastening and embedded overlapping, solving the problem of easy loosening of simple embedding or bonding. The through hole allows the sealing gasket 7 to fit between the overlapping edge 31 and the geomembrane body 1, filling the gap at the splicing point.

[0031] The working principle of this utility model is as follows: When encountering local deformation caused by foundation settlement, soil displacement, etc., the flexible strip 21 integrally formed with the main body in the middle of the geomembrane 1 and the elastic connecting strip 22 on the surface are simultaneously subjected to force and expansion and contraction, bearing and buffering local stress to avoid stress diffusion and reduce the risk of membrane tearing. The outer membrane layer 11 of the geomembrane 1 resists external erosion and ensures seepage prevention function. The buffer layer 12 made of elastic polyurethane foam with honeycomb buffer holes 6 absorbs impact and tensile stress. The bottom rubber reinforcing ribs 5 disperse stress to prevent excessive deformation of the buffer layer 12, thus achieving a balance between strength and buffering.

[0032] The geomembrane body is reinforced by an embedded overlap extending from the geomembrane body 1 to the inner cavity of the overlap edge 31, mechanically fixed by rivets 4 at the positioning holes 32, and filled with a sealing gasket 7 with a through hole to fill the splicing gap. This triple protection ensures the firmness and sealing of the splice. The cooperation of each structure allows the geomembrane to adapt to local deformation and resist external impact under complex working conditions, while maintaining structural stability and seepage prevention effect in the long term, meeting the long-term use needs of various projects.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A geomembrane structure with deformation compensation function, comprising a geomembrane body (1), characterized in that: The surface of the geomembrane body (1) is provided with a deformation compensation mechanism (2). The deformation compensation mechanism (2) includes a flexible strip (21), which is located in the middle of the geomembrane body (1). The surface of the flexible strip (21) is provided with an elastic connecting strip (22). The flexible strip (21) and the geomembrane body (1) are integrally formed.

2. A geomembrane structure with deformation compensation function according to claim 1, characterized in that: Both sides of the geomembrane body (1) are provided with connectors (3). The connectors (3) include overlapping edges (31). The overlapping edges (31) are provided on both sides of the geomembrane body (1). Positioning holes (32) are provided on both sides of the top of the overlapping edges (31). One side of the geomembrane body (1) extends into the inner cavity of the overlapping edges (31).

3. A geomembrane structure with deformation compensation function according to claim 2, characterized in that: The top of the positioning hole (32) is provided with a rivet (4), and the overlapping edge (31) is fixedly connected to the geomembrane body (1) by the rivet (4).

4. A geomembrane structure with deformation compensation function according to claim 1, characterized in that: The geomembrane body (1) includes an outer membrane layer (11), and a buffer layer (12) is fixedly connected to the inner wall of the outer membrane layer (11).

5. A geomembrane structure with deformation compensation function according to claim 4, characterized in that: The outer membrane layer (11) is made of polyethylene material, and the buffer layer (12) is made of elastic polyurethane foam material.

6. A geomembrane structure with deformation compensation function according to claim 4, characterized in that: The bottom of the buffer layer (12) is provided with reinforcing ribs (5), and the reinforcing ribs (5) are made of rubber.

7. A geomembrane structure with deformation compensation function according to claim 4, characterized in that: The top of the buffer layer (12) is provided with honeycomb-shaped buffer holes (6).

8. A geomembrane structure with deformation compensation function according to claim 2, characterized in that: The inner side of the overlapping edge (31) is provided with a sealing gasket (7), and the surface of the sealing gasket (7) is provided with a through hole corresponding to the positioning hole (32).

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