A retaining wall system

By setting a cushion layer and anchoring structure in the retaining wall system, a smooth transition between the geomembrane and the foundation and wall body is achieved, solving the problem of geomembrane tearing at the junction, and improving construction efficiency and system stability and durability.

CN224451710UActive Publication Date: 2026-07-03NORTHWEST ENGINEERING CORPORATION LIMITED
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHWEST ENGINEERING CORPORATION LIMITED
Filing Date
2025-07-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Geomembranes are prone to cracking at the junction of the retaining wall foundation and the wall body, which affects the seepage prevention performance and reduces construction efficiency.

Method used

A cushion layer is set in the retaining wall system. The cushion layer smoothly transitions with the end faces of the foundation and the wall. The geomembrane is laid sequentially on the end faces of the foundation and the wall and on the cushion layer. It is fixed to the wall in combination with the anchoring structure to form a smoothly transitioning arc structure.

Benefits of technology

It effectively reduces the friction and tensile stress on the geomembrane during the laying process, lowers the risk of cracking, and improves construction efficiency and the stability and durability of the retaining wall system.

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Abstract

This utility model provides a retaining wall system, relating to the field of hydraulic engineering technology. The retaining wall system includes a retaining wall body, a geomembrane, and a cushion layer. The retaining wall body includes a foundation and a wall body arranged at an angle. The cushion layer is disposed at the junction of the foundation and the wall body, and smoothly transitions to the end faces of the foundation and the wall body along the thickness direction of the wall body. The geomembrane is sequentially laid on the end face of the foundation along the thickness direction of the wall body, the cushion layer, and the end face of the wall body along the thickness direction of the wall body. This utility model's retaining wall system can effectively reduce the probability of the geomembrane tearing when passing through the junction of the foundation and the wall body of the retaining wall.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and more specifically, to a retaining wall system. Background Technology

[0002] Currently, retaining wall systems are an important component in projects requiring seepage prevention, such as landscape channels and lake areas, used to prevent water infiltration and maintain soil stability.

[0003] In related technologies, retaining wall systems typically employ a combination of geomembrane and retaining wall to achieve seepage prevention. However, in practical applications, the junction between the foundation and the wall body is often a sharp angle, such as a right angle. The geomembrane needs to be folded at this point, which may subject it to significant friction and tensile stress, potentially leading to tearing. This tearing not only affects the geomembrane's seepage prevention performance but also reduces construction efficiency due to the need for repairs. Utility Model Content

[0004] The problem this invention addresses is how to reduce the probability of geomembranes cracking at the junction of the foundation and the wall of a retaining wall.

[0005] To address the aforementioned problems, this utility model provides a retaining wall system, comprising a retaining wall body, a geomembrane, and a cushion layer; the retaining wall body includes a foundation and a wall body arranged at an angle; the cushion layer is disposed at the junction of the foundation and the wall body, and the cushion layer smoothly transitions to the end faces of the foundation and the wall body along the thickness direction of the wall body; the geomembrane is sequentially laid on the end face of the foundation along the thickness direction of the wall body, the cushion layer, and the end face of the wall body along the thickness direction of the wall body.

[0006] Optionally, the end face of the cushion layer that contacts the geomembrane has an arc-shaped structure.

[0007] Optionally, the arc-shaped structure includes a first arc segment and a second arc segment, which are connected to form a wave shape; the first arc segment smoothly transitions to the end face of the foundation along the thickness direction of the wall; the second arc segment smoothly transitions to the end face of the wall along the thickness direction of the wall.

[0008] Optionally, the subbase, the foundation, and the wall are an integrated structure.

[0009] Optionally, the cushion layer is a coarse sand cushion layer.

[0010] Optionally, one end of the geomembrane is fixed to the wall after passing through the end face of the wall along the thickness direction.

[0011] Optionally, the retaining wall system further includes an anchoring structure through which the geomembrane is fixed to the wall body.

[0012] Optionally, the anchoring structure includes a pressure plate and a fastener, with a portion of the geomembrane located between the pressure plate and the wall, and the fastener passing sequentially through the pressure plate, the geomembrane, and the wall to connect the pressure plate, the geomembrane, and the wall.

[0013] Optionally, the pressure plate is elongated, and multiple fasteners are spaced apart along the length of the pressure plate.

[0014] Optionally, the retaining wall system further includes a capping, with a portion of the geomembrane located between the capping and the top surface of the wall body; the anchoring structure is disposed at the top of the wall body and enclosed within the capping.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0016] In the structure of a retaining wall system, a subbase is placed at the junction of the foundation and the wall. When the geomembrane is laid sequentially over the end faces of the foundation and the wall along the thickness direction, it passes over the subbase. Because the subbase smoothly transitions to the end faces of both the foundation and the wall, the geomembrane does not need to be excessively folded during installation. This effectively reduces the possibility of the geomembrane being subjected to large frictional and tensile stresses, thereby lowering the risk of the geomembrane tearing. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the retaining wall system according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the structure of the pad layer in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the anchoring structure in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100. Main body of retaining wall; 101. Foundation; 102. Wall body; 200. Geomembrane; 300. Subbase; 301. Arc structure; 3011. First arc segment; 3012. Second arc segment; 400. Anchoring structure; 401. Fastener; 402. Pressure plate; 500. Coping. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0024] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0026] In the description of this application, it should be understood that the terms "height", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] like Figure 1As shown, a retaining wall system includes a retaining wall body 100, a geomembrane 200, and a cushion layer 300. The retaining wall body 100 includes a foundation 101 and a wall body 102 arranged at an angle. The cushion layer 300 is disposed at the junction of the foundation 101 and the wall body 102, and the cushion layer 300 smoothly transitions with the end faces of the foundation 101 and the wall body 102 along the thickness direction of the wall body 102. The geomembrane 200 is sequentially laid on the end face of the foundation 101 along the thickness direction of the wall body 102, the cushion layer 300, and the end face of the wall body 102 along the thickness direction of the wall body 102.

[0028] It is important to understand that the thickness direction of wall 102 refers to: (e.g., ...) Figure 1 As shown, the direction of the X-axis.

[0029] Specifically, such as Figure 1 As shown, the foundation 101 is a cuboid, and the wall 102 is vertically positioned at the middle of the upper surface of the foundation 101. A cushion layer 300 is provided at the junction of the foundation 101 and the wall 102 on the heel side. That is, a cushion layer 300 is provided at the junction of the upper surface of the foundation 101 and the rear surface of the wall 102, and the cushion layer 300 smoothly transitions with the rear surface of the foundation 101 and the rear surface of the wall 102 respectively. At the same time, the geomembrane 200 is laid from bottom to top on the rear surface of the foundation 101, the cushion layer 300, and the rear surface of the wall 102.

[0030] In this embodiment, in the retaining wall system structure, the cushion layer 300 is located at the junction of the foundation 101 and the wall 102. When the geomembrane 200 is laid sequentially on the end faces of the foundation 101 and the wall 102 along the thickness direction of the wall 102, it passes through the cushion layer 300. Since the cushion layer 300 achieves a smooth transition with the end faces of both the foundation 101 and the wall 102, the geomembrane 200 does not need to be excessively folded during the laying process. This effectively reduces the possibility of the geomembrane 200 being subjected to large frictional forces and tensile stresses, thereby reducing the risk of the geomembrane 200 being torn.

[0031] Optionally, the end face of the cushion layer 300 that contacts the geomembrane 200 has an arc-shaped structure 301.

[0032] Specifically, such as Figure 1 As shown, the end face of the cushion layer 300 that contacts the geomembrane 200, i.e., the outer surface, has an arc-shaped structure 301.

[0033] In this optional embodiment, due to the smooth transition characteristics of the curved surface, the geomembrane 200 can adhere more smoothly when in contact with the cushion layer 300, thereby reducing the risk of tearing caused by excessive local stress. Furthermore, the curved structure 301 can improve the contact area distribution between the geomembrane 200 and the cushion layer 300, enhancing the sealing and overall stability between them, which is crucial for preventing moisture penetration and improving the durability of the retaining wall system. Therefore, this curved end face design not only improves the convenience and efficiency of construction but also significantly enhances the long-term performance and reliability of the retaining wall system.

[0034] Optionally, the arc-shaped structure 301 includes a first arc segment 3011 and a second arc segment 3012, the first arc segment 3011 and the second arc segment 3012 being connected to form a wave shape; the first arc segment 3011 smoothly transitions to the end face of the foundation 101 along the thickness direction of the wall 102; the second arc segment 3012 smoothly transitions to the end face of the wall 102 along the thickness direction of the wall 102.

[0035] Specifically, such as Figure 3 As shown, the arc-shaped structure 301 includes a first arc segment 3011 and a second arc segment 3012 connected to each other. The first arc segment 3011 is concave to the outside and is used to smoothly transition with the rear end face of the foundation 101; the second arc segment 3012 is concave to the inside and is used to smoothly transition with the rear end face of the wall 102. Thus, the first arc segment 3011 and the second arc segment 3012 are connected to form a wave shape.

[0036] In this optional embodiment, the wave-shaped design itself possesses a certain degree of flexibility and adaptability, enabling it to better adapt to forces acting in different directions, thereby enhancing the stability of the structure to a certain extent. Simultaneously, the first arc segment 3011 smoothly transitions to the end face of the foundation 101 along the thickness direction of the wall 102, and the second arc segment 3012 smoothly transitions to the end face of the wall 102 along the thickness direction of the wall 102. This smooth transition design eliminates obvious abrupt changes and sharp angles between the arc-shaped structure 301 and the foundation 101 and wall 102, thus reducing stress concentration.

[0037] Optionally, one end of the geomembrane 200 is fixed to the wall 102 after passing through the end face of the wall 102 along the thickness direction.

[0038] Specifically, the upper end of the geomembrane 200 is fixed to the wall 102 after passing the rear end face of the wall 102. It can be fixed to the top face of the wall, the front face of the wall, or even both simultaneously; there are no restrictions, and the fixation depends on the actual needs. For example... Figure 1 As shown, the upper end of the geomembrane 200 is fixed to the top surface of the wall 102 after passing the rear end face of the wall 102.

[0039] In this optional embodiment, by fixing one end of the geomembrane 200 to the wall 102, displacement or loosening of the geomembrane 200 during use can be effectively prevented, thereby ensuring a tight fit between the geomembrane 200 and the wall 102 and enhancing the stability of the entire retaining wall system. Secondly, this fixing method can improve the tensile strength of the geomembrane 200, preventing damage or tearing of the geomembrane 200 due to external factors (such as soil pressure, water flow impact, etc.), and extending its service life.

[0040] Optionally, the retaining wall system further includes an anchoring structure 400, through which the geomembrane 200 is fixed to the wall body 102.

[0041] In this optional embodiment, the anchoring structure 400 provides strong fixing force to ensure that the geomembrane 200 does not shift or loosen during backfilling, thus enhancing the stability of the structure. Simultaneously, the anchoring structure 400 also ensures that the geomembrane 200 will not shift or loosen due to external factors (such as soil pressure, water flow impact, etc.) during long-term use, thereby enhancing the overall stability and reliability of the retaining wall system.

[0042] Optionally, the anchoring structure 400 includes a pressure plate 402 and a fixing member 401. A portion of the geomembrane 200 is located between the pressure plate 402 and the wall 102. The fixing member 401 passes through the pressure plate 402, the geomembrane 200, and the wall 102 in sequence to connect the pressure plate 402, the geomembrane 200, and the wall 102.

[0043] Specifically, such as Figure 2 As shown, the upper part of the geomembrane 200 is located between the pressure plate 402 and the top surface of the wall 102. That is, the upper part of the geomembrane 200 and the pressure plate 402 are arranged sequentially from bottom to top on the top surface of the wall. The fastener 401 is an expansion bolt. The shank of the expansion bolt passes through the pressure plate 402, the geomembrane 200 and the wall 102 in sequence. The expansion tube of the shank is opened inside the wall 102, and the head of the expansion bolt abuts against the pressure plate 402.

[0044] In this optional embodiment, by placing a portion of the geomembrane 200 between the pressure plate 402 and the wall 102, and using a fastener 401 to sequentially pass through the pressure plate 402, the geomembrane 200, and the wall 102, a firm connection is achieved. This connection method not only ensures the stability and reliability of the geomembrane 200 in the retaining wall system, preventing displacement or loosening due to external factors (such as soil pressure, water flow impact, etc.) during long-term use, but also effectively disperses the stress acting on the geomembrane 200, reducing the risk of damage caused by local stress concentration, thereby extending the service life of the geomembrane 200. Simultaneously, this structure is simple and easy to construct, enabling rapid fixation of the geomembrane 200, improving construction efficiency, reducing construction costs, and making it suitable for various complex construction environments and engineering conditions, further enhancing the overall performance and durability of the retaining wall system.

[0045] In other embodiments, the fastener 401 can also be a regular bolt, the shank of which passes through the pressure plate 402 and the geomembrane 200 in sequence and is threaded to the wall 102, and the head of the regular bolt abuts against the pressure plate 402.

[0046] In other embodiments, the anchoring structure 400 is an adhesive layer disposed between the pressure plate 402 and the wall 102 for bonding the pressure plate 402 and the wall 102.

[0047] Optionally, the pressure plate 402 is elongated, and multiple fasteners 401 are spaced apart along the length of the pressure plate 402.

[0048] It is important to understand that the length direction of pressure plate 402 refers to: (e.g., ...) Figure 4 As shown, this indicates the direction of the Y-axis.

[0049] Specifically, such as Figure 4 As shown, the pressure plate 402 is long and narrow. Along the length of the pressure plate 402, multiple fasteners 401 are spaced apart, with a spacing of about 20 centimeters between two adjacent fasteners 401.

[0050] In this optional embodiment, the spaced-apart fasteners 401 can effectively disperse the stress acting on the geomembrane 200, avoid damage caused by local stress concentration, and extend the service life of the geomembrane 200.

[0051] Optionally, the retaining wall system further includes a capping 500, a portion of the geomembrane 200 being located between the capping 500 and the top surface of the wall body 102; the anchoring structure 400 is disposed at the top of the wall body 102 and enclosed within the capping 500.

[0052] Specifically, such as Figure 2As shown, the upper part of the geomembrane 200 is located between the top surface of the capping 500 and the top surface of the wall 102; the anchoring structure 400 is set at the top of the wall 102 and located on the upper surface of the geomembrane 200, and the anchoring structure 400 is wrapped inside the capping 500.

[0053] In this optional embodiment, by placing a portion of the geomembrane 200 between the capping 500 and the top surface of the wall 102, and setting the anchoring structure 400 at the top of the wall 102 and enclosing it within the capping 500, the geomembrane 200 is firmly fixed and the overall structure is tightly connected. The capping 500 not only provides additional clamping force to the geomembrane 200, preventing it from shifting or loosening due to external factors (such as wind, water flow impact, etc.), but also enhances the integrity and stability of the retaining wall system. Simultaneously, the anchoring structure 400, being enclosed within the capping 500, effectively protects the anchors from external environmental erosion, extends their service life, and ensures long-term fixation.

[0054] Optionally, the capping 500 is a cast-in-place component.

[0055] Specifically, the capping 500 is a cement mortar capping 500, which is a cast-in-place component. After the anchoring structure 400 is installed, the capping 500 is cast on the geomembrane 200 using a mold.

[0056] In this optional embodiment, the capping 500 of the cast-in-place component has good durability and can effectively resist the effects of harsh environments, such as wind and rain erosion and temperature changes, thereby extending the service life of the retaining wall system.

[0057] Optionally, the cushion layer 300, the foundation 101, and the wall 102 are an integrated structure.

[0058] In this optional embodiment, this integrated design significantly enhances the integrity and stability of the retaining wall system, reduces connection gaps and potential weak points between different structural components, thereby improving the structure's resistance to deformation and its durability. The integrated structure also simplifies the construction process, reduces on-site splicing and installation work, improves construction efficiency, and lowers construction costs.

[0059] Optionally, the cushion layer 300 is a coarse sand cushion layer 300.

[0060] In this optional embodiment, the use of a coarse sand cushion layer 300 has significant beneficial effects, especially when used in conjunction with a geomembrane 200. The granular structure of the coarse sand cushion layer 300 provides good permeability and a certain degree of elasticity, allowing the geomembrane 200 to have appropriate leeway during installation, thereby effectively preventing the geomembrane 200 from tearing due to uneven settlement of the foundation 101 or external forces. This design not only enhances the overall stability of the retaining wall system but also improves the system's durability and reliability, ensuring effective prevention of leakage and structural damage during long-term use.

[0061] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A retaining wall system, characterized in that, The structure includes a retaining wall body (100), a geomembrane (200), and a cushion layer (300). The retaining wall body (100) includes a foundation (101) and a wall body (102) arranged at an angle. The cushion layer (300) is disposed at the junction of the foundation (101) and the wall body (102), and the cushion layer (300) smoothly transitions to the end face of the foundation (101) and the wall body (102) along the thickness direction of the wall body (102), respectively. The geomembrane (200) is laid sequentially on the end face of the foundation (101) along the thickness direction of the wall body (102), the cushion layer (300), and the end face of the wall body (102) along the thickness direction of the wall body (102).

2. The retaining wall system according to claim 1, wherein, The end face of the cushion layer (300) that contacts the geomembrane (200) has an arc-shaped structure (301).

3. The retaining wall system according to claim 2, wherein, The arc-shaped structure (301) includes a first arc segment (3011) and a second arc segment (3012), the first arc segment (3011) and the second arc segment (3012) are connected to form a wave shape; the first arc segment (3011) smoothly transitions to the end face of the foundation (101) along the thickness direction of the wall (102); the second arc segment (3012) smoothly transitions to the end face of the wall (102) along the thickness direction of the wall (102).

4. The retaining wall system according to claim 1, wherein, The cushion layer (300), the foundation (101), and the wall (102) are an integrated structure.

5. The retaining wall system according to claim 1, wherein, The cushion layer (300) is a coarse sand cushion layer (300).

6. The retaining wall system according to claim 1, wherein, One end of the geomembrane (200) is fixed to the wall (102) after passing the end face of the wall (102) along the thickness direction.

7. The retaining wall system according to claim 6, wherein, It also includes an anchoring structure (400), through which the geomembrane (200) is fixed to the wall (102).

8. The retaining wall system according to claim 7, wherein, The anchoring structure (400) includes a pressure plate (402) and a fastener (401). A portion of the geomembrane (200) is located between the pressure plate (402) and the wall (102). The fastener (401) passes through the pressure plate (402), the geomembrane (200), and the wall (102) in sequence to connect the pressure plate (402), the geomembrane (200), and the wall (102).

9. The retaining wall system according to claim 8, wherein, The pressure plate (402) is long and narrow, and multiple fasteners (401) are spaced apart along the length of the pressure plate (402).

10. The retaining wall system according to claim 7, wherein, It also includes a capping (500), a portion of which of the geomembrane (200) is located between the capping (500) and the top surface of the wall (102); the anchoring structure (400) is disposed at the top of the wall (102) and enclosed within the capping (500).