Soft foundation retaining wall structure

By installing right-angle components in a staggered manner on the soft base layer of the riverbank, combined with the soil compaction layer and the friction layer, the problems of construction difficulties and unstable connections of traditional retaining walls on soft base layers are solved, and a stable riverbank protection effect is achieved.

CN223838121UActive Publication Date: 2026-01-27GUANGDONG CHENGHUA ENG CONSULTING CO LTD
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Patent Information

Application Number
CN202520382723.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-27
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Traditional river retaining walls are difficult and costly to construct on soft soil surfaces, and their connections are unstable, making them prone to loosening and gaps. They also have insufficient flood control and flood prevention capabilities and low safety.

Method used

The staggered connection of right-angle components, combined with the soil compaction layer and friction layer, is gradually tightened with the soft base layer through the connection of locking components and fixing rods, thereby enhancing stability and impact resistance.

Benefits of technology

It improves the stability and impact resistance of the retaining wall structure, reduces gaps and loosening, enhances the protection of the riverbank, and reduces construction difficulty and cost.

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Abstract

The utility model relates to the technical field of river bank buildings, in particular to a soft foundation retaining wall structure which comprises a plurality of retaining wall inclined faces arranged along the two sides of a river bank, each retaining wall inclined face comprises a plurality of right-angle assemblies, and the right-angle assemblies are sequentially stacked from bottom to top to be arranged into the retaining wall inclined face. The right-angle assemblies on the slopes of every two adjacent retaining walls are arranged in a one-to-one staggered mode. A soil pressing layer is arranged on the back face of the right-angle assembly, a friction layer is arranged on the bottom face of the right-angle assembly, the front side of the right-angle assembly is an inclined face, and the upper end of the right-angle assembly is matched with the lower end of the right-angle assembly through a clamping component. The retaining wall structure can be conveniently installed on soft base layers of some river banks, the whole retaining wall structure is formed by installing the right-angle assemblies and connecting and fixing the right-angle assemblies one by one, the connection is stable, the impact of river water on the river banks can be reduced, and the retaining wall and the soft base layers can be gradually attached to each other.
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Description

Technical Field

[0001] This utility model relates to the technical field of riverbank construction, specifically to a soft soil retaining wall structure. Background Technology

[0002] Traditional river retaining wall systems typically involve piling up stones and then casting concrete to form the wall, preventing soil deformation and instability in the supporting roadbed fill, riverbed soil, or hillside soil, thus avoiding landslides or other major accidents. However, on soft soil surfaces, retaining walls are not only more difficult and costly to construct, but also more prone to cracking due to uneven stress on the concrete surfaces after construction, as the soil is not compacted. To address these issues, current river retaining wall systems primarily use masonry blocks. Block-built retaining walls or slope protection offer greater stability during installation and better grip, increasing friction for tighter contact with the soft soil surface. However, existing designs often lack stability at the joints, resulting in insufficient flood control and lower safety, and making repairs difficult. Utility Model Content

[0003] To address the problems existing in the prior art, the present invention aims to provide a retaining wall structure for soft soil foundations. This invention facilitates the installation of a retaining wall structure on soft soil layers along riverbanks. Through the installation and connection of various right-angle components, the entire retaining wall structure is formed. This structure provides a stable connection, reduces the impact of river water on the riverbank, and gradually allows the retaining wall to adhere more closely to the soft soil layer.

[0004] The present invention discloses a soft soil retaining wall structure, comprising multiple retaining wall slopes arranged along both sides of a riverbank. Each retaining wall slope includes several right-angle components, which are stacked sequentially from bottom to top to form the retaining wall slope of that slope. The right-angle components on adjacent retaining wall slopes are staggered. A soil-pressing layer is provided on the back of each right-angle component, a friction layer is provided on the bottom surface of each right-angle component, and the front side of each right-angle component is a slope. The upper end and the lower end of each right-angle component are fitted together by a locking member.

[0005] In one embodiment, the engaging member includes an L-shaped first engaging portion located at the upper end of the right-angle component and protruding to its rear side, and a second engaging portion formed at the bottom of the lower end of the right-angle component and adapted to the first engaging portion, wherein the first engaging portion and the second engaging portion are tightly fitted together by filling with concrete.

[0006] In one embodiment, the first and second engaging portions are provided with a plurality of screw holes arranged along the width direction of the right-angle assembly. The screw holes are internally threaded with a fixing rod, and the screw holes are positioned at the corner where the first and second engaging portions meet.

[0007] In one embodiment, the end of the fixing rod extends into the soft base layer, and the end of the fixing rod is provided with a plurality of protrusions extending radially thereon, the protrusions being hemispherical in shape.

[0008] In one embodiment, the compacted soil layer is provided with a plurality of arc-shaped protrusions, which are evenly spaced.

[0009] In one embodiment, the friction layer is provided with a plurality of protruding corners extending along the width direction of the right-angle component, the protruding corners being inverted triangles in cross-section and arranged closely in sequence.

[0010] In one embodiment, the two sides of the right-angle component are further provided with slots and strips that are adapted to the adjacent right-angle components.

[0011] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0012] This utility model facilitates the installation of retaining wall structures on soft soil layers of riverbanks. By installing and connecting each right-angle component, the soil in that area can be compacted in batches, making each individual right-angle component more stable. Adjacent right-angle components are connected by interlocking components, further increasing the stress at the corners of the right-angle components and preventing cracks from forming due to the thinness of the components covering the soft soil layer. Cracks can be filled by further covering with concrete to strengthen the resistance, gradually forming the entire retaining wall structure. The staggered connection of the retaining wall slopes in different sections makes the whole structure more stable and can compensate for each other and reduce the impact of river water on the riverbank. The shape of the right-angle components allows them to gradually adhere more closely to the soft soil layer under long-term erosion. Attached Figure Description

[0013] Figure 1 This is a partial connection diagram of a soft soil retaining wall structure according to this utility model;

[0014] Figure 2 This is a cross-sectional schematic diagram of a single right-angle component of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1-Right-angle component, 11-Soil compaction layer, 12-Friction layer, 13-Clamping strip, 2-Clamping component, 21-First clamping part, 22-Second clamping part, 23-Fixing rod, 24-Protrusion. Detailed Implementation

[0016] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 and Figure 2As shown, this utility model discloses a soft soil retaining wall structure, which includes multiple retaining wall slopes arranged along both sides of the riverbank. Each retaining wall slope includes several right-angle components 1. The right-angle components 1 are mainly formed by arranging steel bars after modeling and pouring concrete. Each right-angle component 1 is small in size and easy to mass-produce using the same mold. The right-angle components 1 are stacked sequentially from bottom to top to form the slope of the retaining wall. The right-angle components 1 on adjacent retaining wall slopes are staggered one by one. The back of the right-angle component 1 is provided with a soil pressing layer 11, the bottom surface of the right-angle component 1 is provided with a friction layer 12, the front side of the right-angle component 1 is a slope, and the upper end of the right-angle component 1 and the lower end of the right-angle component 1 are adapted to each other by a locking member 2. This utility model facilitates the installation of retaining wall structures on soft soil layers along riverbanks. By installing and connecting each right-angle component 1, the soil in that area can be compacted in batches, making each right-angle component 1 more stable. The soil compaction layer 11 further compacts the soil by installing the right-angle components 1 on it, while the friction layer 12 prevents the right-angle components 1 from sliding outwards. The connection of two adjacent right-angle components 1 through the interlocking member 2 further enhances the stress at the upper and lower corners of the right-angle components 1. After the front sides of each right-angle component 1 are spliced ​​together to form a slope, cracks are prevented at the connection point due to the thinness of the right-angle component 1 body covering the soft soil layer. The gaps in the slope can be filled by further covering with concrete, and the strength to resist the impact of river water can be strengthened, thus gradually forming the entire retaining wall structure. Since the retaining wall slopes of different sections are staggered and connected, the overall pressure and the supporting force of the soft base layer are more stable, which can compensate for each other and reduce the impact of the river water on the riverbank. Due to the shape of the right-angle component 1 and the setting of the soil layer 11 and the friction layer 12, it can gradually fit into the soft base layer under long-term scouring, avoiding the formation of internal voids that would affect the overall stress change.

[0019] The engaging component 2 includes an L-shaped first engaging portion 21 located at the upper end of the right-angle component 1 and protruding to its rear side. A second engaging portion 22 is formed at the lower bottom of the right-angle component 1 and is adapted to the first engaging portion 21. The first engaging portion 21 and the second engaging portion 22 are tightly fitted together by filling with concrete. The first engaging portion 21 and the second engaging portion 22 are connected in a stepped manner, so that adjacent right-angle components 1 can be connected and positioned according to the position of the engaging component 2. Moreover, the shape of the first engaging portion 21 and the second engaging portion 22 means that the right-angle component 1 located on the lower layer will provide a certain resistance to the right-angle component 1 located on the upper layer, preventing the right-angle component 1 from sliding outward. Specifically, to ensure a tighter fit between the first engaging part 21 and the second engaging part 22, multiple screw holes are arranged along the width of the right-angle component 1 on both parts. A fixing rod 23 is threaded into each screw hole, and the screw holes are positioned at the corner where the first engaging part 21 and the second engaging part 22 meet. The engaging component 2, by screwing the fixing rod 23 into the screw holes, further strengthens the connection between the two adjacent right-angle components 1, preventing them from easily detaching. This, combined with the staggered fit of different sections of the retaining wall slopes (e.g., by setting grooves and locking strips 13 on the sides of the right-angle components 1), provides connection and restraint between them. Concrete is then poured into the joints to ensure the entire retaining wall is assembled as a whole, preventing individual right-angle components 1 from falling off and achieving the effect of resisting river water impact.

[0020] Furthermore, the end of the fixing rod 23 extends into the soft base layer, and the end of the fixing rod 23 is provided with multiple radially extending protrusions 24, the protrusions 24 being hemispherical in shape. In addition to connecting the first engaging part 21 and the second engaging part 22 to make the connection between the two adjacent right-angle components 1 more stable, the fixing rod 23 can also extend further into the soft base layer, and the protrusions 24 form an expansion position to further fix the position of the fixing rod 23, thereby stabilizing the engaging member 2 on the right-angle component 1.

[0021] Furthermore, the soil-pressing layer 11 on the rear side of the right-angle component 1 specifically features multiple arc-shaped protrusions evenly spaced. These protrusions form a hemispherical shape, which, when the right-angle component 1 is pressed against and positioned on the soft base layer, disrupts the contact surface, creating a flat plane and reducing the impact of pressure. This further compacts the soil in the soft base layer and reduces gaps in the connection. The friction layer 12 specifically features multiple protruding corners extending along the width of the right-angle component 1. These protruding corners are inverted triangles in cross-section and arranged closely together. The friction layer 12, with its multiple inverted triangular wavy protrusions, increases the contact area between the bottom surface of the right-angle component 1 and the soil. The sharp corners can also be inserted into the soil, allowing for better positioning of the right-angle component 1 after installation. Moreover, when multiple right-angle components 1 are connected together, the increased friction can better resist the impact of river water.

[0022] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application.

[0023] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A retaining wall structure for soft soil foundations, characterized in that, The structure includes multiple retaining wall slopes arranged along both sides of the riverbank. Each retaining wall slope includes several right-angle components (1). The right-angle components (1) are stacked sequentially from bottom to top to form the retaining wall slope. The right-angle components (1) on adjacent retaining wall slopes are staggered. The back of the right-angle component (1) is provided with a soil pressing layer (11), and the bottom surface of the right-angle component (1) is provided with a friction layer (12). The front side of the right-angle component (1) is a slope. The upper end of the right-angle component (1) and the lower end of the right-angle component (1) are adapted to each other by a locking member (2).

2. The soft soil retaining wall structure according to claim 1, characterized in that, The engaging member (2) includes an L-shaped first engaging part (21) located at the upper end of the right-angle component (1) and protruding to its rear side. A second engaging part (22) is formed at the bottom of the lower end of the right-angle component (1) and is adapted to the first engaging part (21). The first engaging part (21) and the second engaging part (22) are tightly fitted together by filling with concrete.

3. The soft soil retaining wall structure according to claim 2, characterized in that, Multiple screw holes are arranged on the first engaging part (21) and the second engaging part (22) along the width direction of the right angle component (1). A fixing rod (23) is threaded into the screw hole, and the screw hole is located at the corner where the first engaging part (21) and the second engaging part (22) meet.

4. The soft soil retaining wall structure according to claim 3, characterized in that, The end of the fixing rod (23) extends into the soft base layer, and the end of the fixing rod (23) is provided with a plurality of protrusions (24) extending radially thereon, the protrusions (24) being hemispherical in shape.

5. The soft soil retaining wall structure according to claim 4, characterized in that, The soil compaction layer (11) is provided with multiple arc-shaped protrusions, which are evenly spaced.

6. The soft soil retaining wall structure according to claim 5, characterized in that, The friction layer (12) has a plurality of protruding corners extending along the width direction of the right-angle component (1), and the protruding corners are inverted triangles in cross-section and are arranged closely in sequence.

7. A soft soil retaining wall structure according to any one of claims 1-6, characterized in that, The right-angle component (1) is also provided with slots and strips (13) on both sides that are adapted to the adjacent right-angle component (1).