Tilted rod type retaining wall
The inclined tie rod retaining wall constrains the deformation of the vertical wall through a triangular force system, which solves the problems of large land occupation, high cost or complicated construction of existing retaining walls at high altitudes. It achieves the effect of reducing engineering costs and facilitating construction, and is suitable for complex terrain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUATIAN ENG & TECH CORP MCC
- Filing Date
- 2025-07-28
- Publication Date
- 2026-08-04
AI Technical Summary
Existing retaining walls, when their height exceeds 8m, suffer from problems such as large land area, high cost, or complicated construction. In particular, cantilever and buttress retaining walls have obvious defects in high-height applications.
The retaining wall structure is a tie rod type, which includes a base plate, vertical wall, top beam, embedded parts and tie rod assembly. The tie rod assembly forms a triangular force system, which constrains the deformation of the top beam and vertical wall, reduces bending moment and shear force, and improves connection stability.
It effectively reduces the bending moment and shear force of the vertical wall, reduces the amount of concrete and steel reinforcement, lowers project costs, facilitates construction, is suitable for narrow sites and complex terrain, and improves the support capacity and structural stability.
Smart Images
Figure CN224591484U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of civil engineering technology, and in particular to a tie-rod type retaining wall. Background Technology
[0002] In civil engineering, to obtain a larger usable area, it is often necessary to support the soil at points of elevation difference. This support is typically achieved by constructing retaining walls. Existing retaining walls generally fall into the following categories: 1. Gravity retaining walls; 2. Cantilever retaining walls; 3. Buttress retaining walls. These existing retaining wall technologies have the following disadvantages: Gravity retaining walls require a large area and are not suitable for retaining walls with a height greater than 8m; Cantilever retaining walls are simple in structure and easy to construct, but their use significantly increases costs when the retaining wall height exceeds 8m; Buttress retaining walls offer good economic benefits when the retaining wall height exceeds 8m, but their construction is cumbersome due to the spaced buttresses. Utility Model Content
[0003] The present invention introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This part of the present invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, this utility model provides a tie-rod type retaining wall, comprising:
[0006] A retaining wall, comprising a base slab, vertical walls, and a top beam, wherein the vertical walls are disposed between the base slab and the top beam, and the width of the base slab is greater than the width of the top beam;
[0007] Embedded parts, which are disposed within the base plate and the top beam;
[0008] A tie rod assembly is disposed between the embedded parts and is used to tighten and fix the top beam, vertical wall and bottom plate.
[0009] Optionally, the pull rod assembly includes:
[0010] First pull rod;
[0011] The second tie rod, the first end of which is connected to the embedded part;
[0012] The tensioning member is disposed between the two ends of the first pull rod and the second end of the second pull rod. The tensioning member can drive the second end of the second pull rod to move in the opposite direction to the two ends of the first pull rod. The first pull rod, the second pull rod and the tensioning member are provided with a protective layer on their outer sides.
[0013] Optionally, the tensioning member is threadedly connected to both ends of the first tie rod and the second end of the second tie rod.
[0014] Optionally, the tensioning member is a tubular structure with an internal thread, and the second end of the second tie rod and both ends of the first tie rod are provided with external threads that match the internal thread.
[0015] Optionally, the internal threads at both ends of the tensioning member are reverse threads.
[0016] Optionally, the embedded part includes an anchor plate, which is connected to the first end of the second tie rod.
[0017] Optionally, the anchor plate is welded to the second tie rod through the hole.
[0018] Optionally, the embedded part further includes:
[0019] A stiffening rib is provided between the anchor plate and the second tie rod.
[0020] Optionally, there are four stiffening ribs, arranged symmetrically in pairs on the anchor plate.
[0021] Optionally, the stiffening rib is welded to the anchor plate and the second tie rod.
[0022] Compared with existing technologies, this utility model has at least the following beneficial effects: By installing a tie rod assembly between the bottom slab and the top beam, when the lateral pressure of the soil acts on the vertical wall, the vertical wall transfers the load to the top beam and the bottom slab. At this time, the tie rod assembly forms a triangular force system with the top beam and the bottom slab through the embedded parts. The tension of the tie rod assembly effectively constrains the deformation of the top beam and the vertical wall, transforming the free boundary condition at the top of the traditional cantilever retaining wall into an elastic constraint, significantly reducing the bending moment and shear force of the vertical wall.
[0023] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description
[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0025] Figure 1 Top view structural diagram provided for this application;
[0026] Figure 2 The side sectional view of the structure provided in this application;
[0027] Figure 3 The embedded part structure diagram provided for this application;
[0028] Figure 4 The top view of the embedded parts provided in this application;
[0029] Figure 5 The structural diagram of the tie rod assembly provided in this application.
[0030] The correspondence between the reference numerals and the component names is as follows:
[0031] 1. Retaining wall; 11. Base plate; 12. Vertical wall; 13. Top beam; 2. Embedded parts; 21. Anchor plate; 22. Stiffening rib; 3. Tie rod assembly; 31. First tie rod; 32. Second tie rod; 33. Tensioner. Detailed Implementation
[0032] The following description provides numerous specific details to offer a more thorough understanding of the technical solutions provided by this invention. However, it will be apparent to those skilled in the art that the technical solutions provided by this invention can be implemented without one or more of these details.
[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.
[0034] Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.
[0035] Combined with appendix Figure 1-5 As shown, a tie-rod type retaining wall according to this application includes:
[0036] Retaining wall 1, the retaining wall 1 includes a base plate 11, a vertical wall 12 and a top beam 13, the vertical wall 12 is disposed between the base plate 11 and the top beam 13, and the width of the base plate 11 is greater than the width of the top beam 13;
[0037] Embedded part 2, the embedded part 2 is set in the base plate 11 and the top beam 13;
[0038] Tie rod assembly 3 is disposed between the embedded parts 2 and is used to tighten and fix the top beam 13, the vertical wall 12 and the bottom plate 11.
[0039] Specifically, the inclined tie rod retaining wall includes a retaining wall 1, embedded parts 2, and tie rod assembly 3. The retaining wall 1 is used to support soil with height differences. The retaining wall 1 includes a base plate 11, a vertical wall 12, and a top beam 13. The base plate 11 is used to support the vertical wall 12, and the vertical wall 12 supports the soil. The width of the base plate 11 is greater than the width of the top beam 13.
[0040] Embedded parts 2 are installed in the base plate 11. After the base plate 11 reaches a certain strength, the vertical wall 12 and the top beam 13 are constructed, and embedded parts 2 are installed in the top beam 13. After the top beam 13 reaches a certain strength, the tie rod assembly 3 is connected between the embedded parts 2 to realize the connection between the base plate 11 and the top beam 13 of the retaining wall 1. This changes the boundary conditions of the vertical wall 12 of the traditional cantilever retaining wall 1. Under the same force conditions, the bending moment and shear force of the vertical wall 12 of the retaining wall 1 will be greatly reduced, improving the stability of the connection between the base plate 11 and the vertical wall 12 and the top beam 13 of the retaining wall 1, and improving the ability of the retaining wall 1 to support the soil.
[0041] In use, when the lateral pressure of the soil acts on the vertical wall 12, the vertical wall 12 transfers the load to the top beam 13 and the bottom plate 11. At this time, the tie rod assembly 3 forms a triangular force system with the top beam 13 and the bottom plate 11 through the embedded parts 2. The tension of the tie rod assembly 3 effectively constrains the deformation of the top beam 13 and the vertical wall 12, transforming the free boundary condition at the top of the traditional cantilever retaining wall 1 into an elastic constraint, significantly reducing the bending moment and shear force of the vertical wall 12. Under the same soil pressure, the maximum bending moment of this inclined tie rod retaining wall is reduced by more than 60% compared with the traditional cantilever retaining wall 1. Therefore, under the same usage conditions, the thickness of the vertical wall 12 can be reduced, which also reduces the amount of concrete and steel reinforcement, thus reducing the project cost. Moreover, the inclined tie rod retaining wall is easy to construct. The embedded part 2 can be installed and positioned before the concrete is poured. The tie rod assembly 3 is a prefabricated part, which can be installed without on-site welding. Compared with the complex formwork support and steel reinforcement binding process of the buttress retaining wall 1, the retaining wall 1 is easy to construct and has low requirements for site space during construction. It is particularly suitable for retaining projects in narrow sites and complex terrain conditions.
[0042] Combined with appendix Figure 1 , Figure 2 , Figure 5 As shown, the pull rod assembly 3 includes:
[0043] First pull rod 31;
[0044] The second tie rod 32, the first end of which is connected to the embedded part 2;
[0045] Tensioner 33 is disposed between the two ends of the first pull rod 31 and the second end of the second pull rod 32. The tensioner 33 can drive the second end of the second pull rod 32 to move towards or away from the two ends of the first pull rod 31. A protective layer is provided on the outside of the first pull rod 31, the second pull rod 32 and the tensioner 33.
[0046] Specifically, the tie rod assembly 3 includes a first tie rod 31, a second tie rod 32, and a tensioning member 33, enabling adjustable and highly stable tension transmission during use, effectively improving the retaining wall 1's resistance to lateral soil pressure. There are two second tie rods 32, each with its first end fixedly connected to an embedded part 2. When the embedded part 2 is pre-embedded into the base plate 11 and the top beam 13, the second tie rod 32 is first connected to it. Therefore, after the retaining wall 1 is poured, the second tie rod 32 is already installed on the base plate 11 and the top beam 13. The tensioning member 33 then connects the second tie rod 32 to the first tie rod 31, achieving the assembly and connection of the tie rod assembly 3. The structure is simple and installation is convenient.
[0047] The first tie rod 31 can be forged from alloy steel to ensure tensile strength and improve support performance; alternatively, it can be made of alloy steel at both ends and connected in the middle by a steel wire rope, which facilitates installation while ensuring strength. Similarly, the second tie rod 32 can also be forged from alloy steel to ensure tensile strength and improve support performance; alternatively, it can be made of alloy steel at both ends and connected in the middle by a steel wire rope, which facilitates installation while ensuring strength.
[0048] The tensioning member 33 is installed between the second end of the second tie rod 32 and the two ends of the first tie rod 31, thereby connecting the first tie rod 31 and the second tie rod 32. After connection, the tensioning member 33 can adjust the distance between the two ends of the first tie rod 31 and the second end of the second tie rod 32. Furthermore, the tensioning member 33 can drive the two ends of the first tie rod 31 and the second end of the second tie rod 32 to move towards or away from each other, thereby enabling the adjustment of the length of the tie rod assembly 3 according to the usage requirements. The total length of the tie rod assembly 3 can be shortened to apply prestress, and conversely, the length of the tie rod assembly 3 can be lengthened to loosen the tie rod assembly 3, which facilitates position adjustment during construction and subsequent maintenance.
[0049] During use, the length of the tie rod assembly 3 can be flexibly adjusted via the tensioning member 33 to accommodate installation errors in the retaining wall 1 under different working conditions, ensuring balanced force on the first tie rod 31 and the second tie rod 32. For example, under complex terrain conditions, even if there are deviations in the installation position of the embedded part 2, fine adjustments can be made via the tensioning member 33 to ensure effective transmission of tension between the first tie rod 31 and the second tie rod 32. After being put into use, when the tension of the tie rod assembly 3 decreases due to factors such as soil creep, the first tie rod 31 and the second tie rod 32 can be tensioned again by rotating the tensioning member 33 to restore their stress state and extend the service life of the retaining wall 1.
[0050] The first tie rod 31, the second tie rod 32, and the tensioning member 33 are provided with a protective layer on their outer sides. The protective layer is formed by galvanizing or spraying asphalt coating on the outer surface of the first tie rod 31, the second tie rod 32, and the tensioning member 33. The anti-corrosion coating can reduce the risk of corrosion, enhance their ability to resist external corrosive factors, extend the service life of the first tie rod 31, the second tie rod 32, and the tensioning member 33, and ensure the safety and stability of the structure.
[0051] Combined with appendix Figure 1 , Figure 2 , Figure 5 As shown, the tensioning member 33 is threadedly connected to both ends of the first pull rod 31 and the second end of the second pull rod 32.
[0052] The tensioning member 33 is a tubular structure with an internal thread inside. The second end of the second pull rod 32 and both ends of the first pull rod 31 are provided with external threads that match the internal thread.
[0053] The internal threads at both ends of the tensioning member 33 are reverse threads.
[0054] Specifically, the threaded connection between the tensioning member 33 and the first tie rod 31 and the second tie rod 32 facilitates the adjustment of the distance between the first tie rod 31 and the second tie rod 32. By creating reverse threads at both ends of the tensioning member 33, rotating the tensioning member 33 allows the second end of the second tie rod 32 to move in the opposite direction to the two ends of the first tie rod 31, simultaneously driving the first tie rod 31 and the second tie rod 32 to move in opposite directions, significantly improving the efficiency and stability of the prestress adjustment of the tie rod assembly 3. Furthermore, when the tensioning member 33 is rotated clockwise, the second end of the second tie rod 32 can move in the opposite direction to the two ends of the first tie rod 31 simultaneously. Compared to the traditional unidirectional threaded adjustment method, the reverse thread structure nearly doubles the tensioning efficiency. During adjustment, the forces on the first tie rod 31 and the second tie rod 32 remain symmetrical and balanced, avoiding twisting or eccentricity of the tie rod assembly 3 due to unilateral force, ensuring that all parts of the retaining wall 1 uniformly bear the lateral pressure of the soil. During operation, the operator can adjust the first pull rod 31 and the second pull rod 32 simultaneously, eliminating the need to operate multiple components separately and improving adjustment efficiency. The tensioning element 33 can be a tubular structure, and its outer surface has anti-slip textures, making it easy for construction workers to grip and apply force, allowing for easy operation even in confined construction spaces.
[0055] Combined with appendix Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the embedded part 2 includes an anchor plate 21, which is connected to the first end of the second tie rod 32.
[0056] Specifically, the anchor plate 21 is made of high-strength low-alloy steel plate, and its thickness is determined according to requirements to ensure that it does not bend or deform during the stress process. Its surface is rectangular, and the anchor plate 21 is connected to the first end of the second tie rod 32 to ensure the connection strength between the two. When the lateral pressure of the soil is transmitted to the anchor plate 21 through the tie rod assembly 3, the anchor plate 21 uses its own rigidity to evenly distribute the concentrated tensile force to the surrounding concrete, avoiding localized stress concentration that could lead to concrete cracking, and improving the overall bearing capacity of the retaining wall 1 structure.
[0057] Combined with appendix Figure 3 , Figure 4 As shown, the anchor plate 21 is welded to the second tie rod 32 through holes.
[0058] Specifically, the anchor plate 21 and the second tie rod 32 are connected by through-hole plug welding. A circular through hole is made in the anchor plate 21, with a diameter larger than that of the second tie rod 32, to provide sufficient space for fusion welding. The end of the second tie rod 32 is machined into a flat cylindrical surface and then ground to enhance the welding fusion effect. During construction, the second tie rod 32 is first vertically passed through the through hole of the anchor plate 21 and fixed. Then, a small-diameter welding rod is used to perform root pass welding along the hole wall to ensure that the second tie rod 32 is completely fused with the root of the hole wall. In the filler welding stage, welding material is filled in layers, with each layer controlled at a thickness of 3-5mm, gradually building up to form a plug-like weld. Finally, a cover pass welding is performed to make the weld surface smooth. During the welding process, the interpass temperature is strictly controlled between 150-250℃, and a symmetrical welding method is used to reduce welding deformation. After welding, ultrasonic testing is performed on the weld to ensure welding quality. The plug weld connection significantly improves the connection strength between the anchor plate 21 and the second tie rod 32. The plug weld evenly distributes the tension of the second tie rod 32 to the periphery of the anchor plate 21. Compared with traditional lap welds or fillet welds, its stress transmission path is more direct and the stress area is larger, effectively reducing stress concentration.
[0059] Combined with appendix Figure 3 , Figure 4 As shown, the embedded part 2 also includes:
[0060] The stiffening rib 22 is disposed between the anchor plate 21 and the second tie rod 32.
[0061] There are four stiffening ribs 22, which are symmetrically arranged in pairs on the anchor plate 21.
[0062] The stiffening rib 22 is welded to the anchor plate 21 and the second tie rod 32.
[0063] Specifically, four stiffening ribs 22 are installed between the anchor plate 21 and the second tie rod 32. The stiffening ribs 22 are installed symmetrically in pairs on the anchor plate 21, and they are welded to the anchor plate 21 and the second tie rod 32. This makes the stiffening ribs 22, the anchor plate 21, and the second tie rod 32 form an integrated force-bearing system, which can effectively improve the stability of the connection and enhance the stability and durability of the retaining wall 1 structure. This provides a strong guarantee for the safe and stable operation of the retaining wall 1 under complex geological and load conditions.
[0064] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0065] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", 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 utility model and simplifying the description, and do not indicate or imply that the device or unit 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.
[0066] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0067] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cable-stayed retaining wall characterized by, include: A retaining wall (1) includes a base plate (11), a vertical wall (12) and a top beam (13). The vertical wall (12) is disposed between the base plate (11) and the top beam (13). The width of the base plate (11) is greater than the width of the top beam (13). Embedded part (2), the embedded part (2) is set in the bottom plate (11) and the top beam (13); Tie rod assembly (3), which is disposed between the embedded parts (2) and is used to tighten and fix the top beam (13), the vertical wall (12) and the bottom plate (11).
2. The cable tie-back retaining wall of claim 1, wherein, The pull rod assembly (3) includes: First pull rod (31); The second tie rod (32) has its first end connected to the embedded part (2); Tensioner (33) is disposed between the two ends of the first pull rod (31) and the second end of the second pull rod (32). The tensioner (33) can drive the second end of the second pull rod (32) to move towards or in the opposite direction to the two ends of the first pull rod (31). The first pull rod (31), the second pull rod (32) and the tensioner (33) are provided with a protective layer on their outer sides.
3. The cable tie-back retaining wall of claim 2, wherein, The tensioning member (33) is threadedly connected to both ends of the first pull rod (31) and the second end of the second pull rod (32).
4. The cable tie-back retaining wall of claim 3, wherein, The tensioning member (33) is a tubular structure, and an internal thread is provided inside the tensioning member (33). The second end of the second pull rod (32) and both ends of the first pull rod (31) are provided with external threads that match the internal thread.
5. The inclined tie-rod retaining wall according to claim 4, characterized in that, The internal threads at both ends of the tensioning member (33) are reverse threads.
6. The cable tie-back retaining wall of claim 5, wherein, The embedded part (2) includes an anchor plate (21), which is connected to the first end of the second tie rod (32).
7. The cable tie-back retaining wall of claim 6, wherein, The anchor plate (21) is welded to the second tie rod (32) through a hole.
8. The cable tie-back retaining wall of claim 7, wherein, The embedded part (2) also includes: A stiffening rib (22) is provided between the anchor plate (21) and the second tie rod (32).
9. The cable tie-back retaining wall of claim 8, wherein, There are four stiffening ribs (22), which are symmetrically arranged in pairs on the anchor plate (21).
10. The cable tie-back retaining wall of claim 9, wherein, The stiffening rib (22) is welded to the anchor plate (21) and the second tie rod (32).