Fabricated multi-row retaining wall
By using a prefabricated multi-row retaining wall structure, the problem of insufficient bearing capacity of existing retaining walls under special geological conditions is solved, achieving slope protection with high stability and aesthetics, strong adaptability, and extended service life.
Patent Information
- Application Number
- CN202423060335.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing retaining wall types cannot provide sufficient bearing capacity and stability under special geological conditions (such as weak foundations and high slopes), and cannot fully meet the functional requirements of different application scenarios.
The structure adopts a prefabricated multi-row retaining wall structure, including foundation, supporting beams and multiple rows of retaining walls. The foundation units are set in a stepped manner, and the connecting beams connect the retaining walls to form an integral structure. Drainage holes and drainage facilities are provided, and green belts are combined to improve stability and aesthetics.
It improves the stability and adaptability of the support structure, reduces the stress on a single retaining wall, extends its service life, enhances the landscape effect, and achieves the integration of slope support with the ecological environment.
Smart Images
Figure CN223647089U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses an assembled multi-row retaining wall belongs to the slope protection technical field. BACKGROUND
[0002] In the field of civil engineering, especially in the construction and maintenance of filled sites, it is crucial to ensure the stability and safety of the site. To meet this demand, it is often necessary to use upright forms of retaining structures, such as pile foundation beam retaining walls, to prevent soil or rock from sliding and collapsing.
[0003] In filled sites, due to the accumulation and compaction of soil or rock, a large lateral pressure often occurs. In order to ensure the stability and safety of the site, effective retaining measures must be taken. Pile foundation beam retaining walls and other upright forms of retaining structures have become the preferred solution for retaining filled sites due to their good bearing capacity and stability. These structures, through the deep fixation of pile foundations and the lateral support of beams, can effectively resist lateral pressure and prevent the sliding and collapse of filled bodies. In order to meet the needs of different application scenarios, various types of retaining walls are given in national and industry standards, such as counterweight type, cantilever type, etc. Each type has its specific design principle and advantage, suitable for different geological conditions, environmental conditions and construction conditions. For example, the counterweight type retaining wall can effectively resist soil lateral pressure through its own weight and inclination angle; while the cantilever type retaining wall absorbs and disperses lateral pressure through the bending deformation of its cantilever part.
[0004] Although the existing retaining wall types cover a variety of types, due to the complexity of factors such as geological conditions, environmental conditions, construction conditions and economic factors in actual engineering, the existing retaining wall types cannot fully meet the functional requirements of all application scenarios. For example, in some special geological conditions (such as soft foundation, high slope, etc.), the existing retaining wall types may not provide sufficient bearing capacity and stability. SUMMARY
[0005] The utility model overcomes the insufficient prior art, proposes a kind of assembled multi-row retaining wall, comprising: foundation, beam and multiple retaining walls;
[0006] The foundation includes at least two rows of foundation units, one end of each row of foundation units is embedded in the ground, and the other end extends upward to form a support surface;
[0007] The beam is arranged on the support surface of the foundation;
[0008] The multiple retaining walls are arranged in parallel on the beam, and the top elevations of the multiple retaining walls gradually increase along the slope direction to form a stepped shape, and the filling material between adjacent retaining walls forms a stepped platform.
[0009] Preferably, it further comprises a connecting beam.
[0010] The two ends of the connecting beam are arranged on the opposite two side surfaces of the adjacent two retaining walls.
[0011] Preferably, at least one row of retaining walls near the side of the slope in the multiple rows of retaining walls is in cantilever or counterfort structure.
[0012] Preferably, the foundation comprises two rows of foundation units;
[0013] The two rows of foundation units are arranged in parallel in the ground at a preset interval.
[0014] Preferably, one row of foundation units away from the side of the slope is in continuous wall structure, and the continuous wall extends out of the ground line to a preset height.
[0015] One row of foundation units near the side of the slope is in multiple piles arranged at a fixed interval.
[0016] Preferably, the step platform is provided with a planting groove or a green belt.
[0017] Preferably, the retaining wall is provided with a water drainage hole penetrating through the two side surfaces of the wall.
[0018] Preferably, the continuous wall is provided with a water drainage hole penetrating through the two side surfaces of the wall.
[0019] Preferably, the joist and the multiple rows of retaining walls are in prefabricated concrete structure.
[0020] Preferably, the utility model further comprises a drainage ditch and a filter layer.
[0021] The drainage ditch is arranged on the ground surface away from the side of the slope of each row of retaining walls.
[0022] The filter layer is arranged on the surface adjacent to the side of the slope of the retaining wall near the side of the slope.
[0023] Compared with the prior art, the utility model has the beneficial effects that: the two rows of foundation units respectively bear the dispersed load of the upper multiple rows of retaining walls, so that the supporting structure has good stability. The multiple rows of retaining walls in ladder shape can flexibly adapt to the demand of high slope supporting, and have wide applicability. The connecting beam enables the originally independent multiple rows of retaining walls to form a compact integral structure, jointly bear the lateral pressure of the slope soil and other possible loads, and further improves the stability of the structure. At the same time, the stress burden of a single retaining wall is effectively reduced, and the service life of the supporting structure is prolonged. In addition, the step platform formed by the filler between the adjacent retaining walls improves the landscape effect, and realizes the beautiful integration of slope supporting and ecological environment.
[0024] In addition, drainage facilities are arranged on the multiple-row retaining walls, which is beneficial to drain water in the filling material behind the retaining walls and reduce the influence of water pressure on the stability of the retaining walls. The multiple-row retaining walls can be greened and landscaped by using the space between the rows, which not only has functionality, but also increases the aesthetic appearance. The filling material and the connecting beams between the rows of retaining walls form an integral whole with the retaining walls, improve the overall stress of the structure, and save engineering materials. The precast supporting beams and the retaining walls are assembled on site, which reduces the construction period on site. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 The structural schematic diagram of the embodiment of the utility model.
[0026] In the drawing: 1, front retaining wall; 2, rear retaining wall; 3, supporting beam; 4, connecting beam; 5, continuous wall structure; 6, pile structure; 7, drain hole; 8, clay filling material; 9, drainage ditch; 10, first ground line; 11, middle retaining wall; 12, second ground line; 13, granular filling material; 14, filter layer; 15, buttress. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0028] Please refer to Figure 1 The embodiment is aimed at providing a prefabricated multiple-row retaining wall, which comprises a foundation, a supporting beam 3 and multiple-row retaining walls. The foundation comprises at least two rows of foundation units, one end of each row of foundation units is embedded in the ground, and the other end extends upward to form a support surface. The supporting beam 3 is arranged on the support surface of the foundation. The multiple-row retaining walls are arranged in parallel on the supporting beam 3, the top elevations of the multiple-row retaining walls gradually increase along the direction of the slope to form a stepped shape, and the filling material between adjacent retaining walls forms a stepped platform.
[0029] In a specific embodiment, the foundation comprises two rows of foundation units, which are arranged in parallel in the ground at a preset interval, with one end of each row of foundation units extending below the ground and the other end extending upward to support the upper structure, so that the two rows of foundation units bear the upper load of the upper multiple rows of retaining walls and make the structure stable. In another embodiment, the foundation comprises multiple rows of foundation units to adapt to more complex geological conditions or higher slope support requirements. In this embodiment, the top supporting surface of the two rows of foundation units is provided with joists 3, the two ends of the joists 3 are arranged on the top of the two rows of foundation units, and multiple rows of retaining walls are arranged side by side on the top of the joists 3. The top elevation of the multiple rows of retaining walls gradually rises along the slope direction, and the filling material between adjacent retaining walls forms a platform step, so that the top of the retaining walls is in a stepped shape. The number of rows of retaining walls is determined according to the actual height of the slope to ensure sufficient strength and stability of the support structure; the arrangement interval between adjacent retaining walls is determined according to the specific requirements of the project and the geological conditions to achieve the best support effect; the size and form of the retaining wall are determined by the engineering personnel according to the actual engineering. Specifically, in this embodiment, the retaining wall comprises two rows, which are front retaining wall 1, middle retaining wall 11 and rear retaining wall 2, and the rear retaining wall 2 is the retaining wall close to the slope.
[0030] In a specific embodiment, the row of foundation units away from the slope is a continuous wall structure 5, and the continuous wall extends out of the second ground line 12 to a preset height; and the row of foundation units close to the slope is a plurality of pile structures 6 arranged at a fixed interval. This design not only ensures the necessary support force, but also simplifies the construction process; in addition, this design makes the entire retaining wall structure exhibit higher adaptability and stability when dealing with high slopes. Under the same structure, the foundation unit away from the slope is set as a continuous wall structure 5, which cooperates with the upper retaining wall to reduce the number of retaining walls.
[0031] In another embodiment, the row of foundation units away from the slope can also be a row of piles, and a pile-to-pile hanging plate is arranged between the piles to prevent soil loss.
[0032] In specific embodiments, a tie beam 4 is also included; the two ends of the tie beam 4 are arranged on the opposite two side surfaces of the adjacent two retaining walls. This allows the originally independent multiple rows of retaining walls to form a compact overall structure, which collectively bears the lateral pressure of the slope soil and other possible loads. Through the connection of the tie beam 4, the interaction between the retaining walls is significantly enhanced. When under stress, the tie beam 4 can transfer and disperse the load borne by the retaining walls, thereby effectively reducing the stress burden of individual retaining walls and improving the load-bearing capacity and stability of the entire support structure. This load-sharing mechanism not only makes the retaining walls more adaptable to complex and variable slope conditions, but also provides a strong guarantee for the safety and reliability of slope support engineering. In order to ensure the reliability and durability of the connection, the two ends of the tie beam 4 are usually connected by means of pre-embedded parts, welding, bolt connection, integral pouring, etc. to resist the shear force and bending moment that may be generated. At the same time, the material and cross-sectional size of the tie beam 4 are also reasonably selected according to the actual engineering needs to meet the requirements of strength, stiffness and stability.
[0033] In specific embodiments, at least one row of retaining walls near the slope side in the multiple rows of retaining walls is in a cantilever or counterfort structure to better adapt to the complex geological conditions of the slope and enhance the stability of the support structure. The cantilever retaining wall, through its unique cantilever structure, can provide sufficient lateral support to resist the lateral pressure of the slope soil. The cantilever retaining wall is particularly suitable for cases where the geological conditions are relatively stable and the slope height is moderate. The counterfort structure is an enhancement of the cantilever retaining wall by adding a counterfort 15 (i.e. a vertical support member) to further enhance the load-bearing capacity and stability of the retaining wall. The counterfort 15 can effectively disperse the load borne by the retaining wall and transfer it to deeper soil layers, thereby improving the overturning resistance and sliding resistance of the entire support structure. Specifically, as shown in Figure 1 the rear retaining wall 2 in this embodiment is in a counterfort structure, which is provided with a counterfort 15 on the side of the rear retaining wall 2 near the slope.
[0034] In specific embodiments, the joist 3 and the multiple rows of retaining walls are both precast concrete structures. Precast concrete structures have the advantages of high production precision, fast construction speed, and controllable quality, and are very suitable for use in slope support and other projects that require fast and efficient construction.
[0035] In specific embodiments, the space between adjacent retaining walls is filled with fillers, including clay filler 8 and granular filler 13. Specifically, the clay filler 8 is placed on the joist 3 between adjacent retaining walls to a predetermined height. It should be noted that the height of the clay filler 8 is lower than the lowest layer of the water drain hole 7 on the retaining wall. Then, the granular filler 13 is filled on the clay filler 8, and the particle size of the granular filler 13 is larger than the pore size of the water drain hole 7, so that the water between the retaining walls can be smoothly discharged through the water drain hole 7, while avoiding the blockage of the water drain hole 7 by the filler. The particle size is filled to the bottom of the coupling beam 4. Finally, the clay filler 8 is filled on the coupling beam 4 to form a step platform that can be used for planting. Specifically, in this embodiment, the platform formed by the rear retaining wall 2 and the slope is referred to as the first ground line 10.
[0036] In specific embodiments, planting grooves or green belts are provided on the step platform. The width and depth of the planting grooves or green belts are reasonably determined according to the actual situation of the slope and the growth needs of the vegetation. Specifically, the planting grooves or green belts are provided in consideration of the landscaping needs of the supporting structure. In addition, the introduction of the planting grooves or green belts not only adds a touch of green to the slope supporting structure, but also further enhances the stability of the slope through the growth of vegetation and the soil fixation effect of the root system. These green plants can absorb rainwater and reduce soil erosion, and the organic matter produced during their growth can also improve soil structure and promote the recovery and balance of the ecological environment of the slope.
[0037] In specific embodiments, the retaining wall is provided with water drain holes 7 penetrating through the two side surfaces of the wall. In order to effectively discharge the rainwater or groundwater that may accumulate behind the retaining wall and prevent water pressure from adversely affecting the structure of the retaining wall. By reasonably arranging the water drain holes 7, it can ensure that the water flow is smoothly discharged from behind the retaining wall, avoiding the accumulation of water between the retaining wall and the soil, thereby reducing the risk of soil softening and landslides. In specific implementation, the position, number and size of the water drain holes 7 are reasonably determined according to the geological conditions of the slope, rainfall and structural characteristics of the retaining wall. The water drain holes 7 are usually arranged at a lower position of the retaining wall to more effectively discharge the accumulated water.
[0038] In specific embodiments, the continuous wall is provided with water drain holes 7 penetrating through the two side surfaces of the wall. Specifically, in specific implementation, the foundation unit on the side away from the slope in this embodiment is a continuous wall structure 5. In order to avoid the accumulation of water behind the continuous wall and prevent water pressure from adversely affecting the continuous wall, water drain holes 7 need to be provided on the continuous wall to ensure that the water flow is smoothly discharged from behind the continuous wall, reducing the direct impact and penetration of water on the wall, thereby reducing the risk of damage to the wall.
[0039] In specific embodiments, a drainage ditch 9 and a filter layer 14 are also included; the drainage ditch 9 is arranged on the ground surface on the side of each row of retaining walls away from the slope; the filter layer 14 is arranged on the surface adjacent to the slope on the side of the retaining wall close to the slope. Specifically, in this embodiment, since the rear retaining wall 2 is a buttress structure, the filter layer 14 is arranged between the adjacent buttresses 15. Specifically, in order to achieve systematic drainage of the water body, in specific embodiments, the drainage ditch 9 is arranged on the ground surface on the side of each row of retaining walls away from the slope, which mainly functions to collect and guide the surface runoff and the water discharged from the drainage hole 7, ensuring that these water can be smoothly discharged from the supporting structure area, preventing the accumulation of water from causing adverse effects on the retaining wall and the slope. The design of the drainage ditch 9 takes into account factors such as topography, rainfall, and drainage efficiency, ensuring the effectiveness and stability of drainage. The filter layer 14 is arranged on the surface adjacent to the slope on the side of the retaining wall close to the slope, which mainly functions to prevent the soil particles of the slope from being washed away by the water flow, while allowing water to pass through. The filter layer 14 is usually composed of materials with gradually increasing particle sizes, such as gravel, sand, etc., which can form an effective filter layer to prevent the loss of soil particles of the slope, while maintaining the permeability of the water flow.
[0040] It should be noted that in specific embodiments, the particle size of the filler filled between adjacent retaining walls is designed to maintain unobstructed drainage without entering the drainage hole 7. When the filler is not designed, the filter layer 14 needs to be arranged behind the retaining wall when filling soil.
[0041] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A fabricated multi-row retaining wall, characterized by, The application relates to a retaining wall structure. The retaining wall structure comprises a foundation, a support beam and a plurality of retaining walls. The foundation comprises at least two rows of foundation units, one end of each row of foundation units is embedded in the ground, and the other end extends upward to form a support surface. The support beam is arranged on the support surface of the foundation. The plurality of retaining walls are arranged in parallel on the support beam, the top elevations of the plurality of retaining walls gradually increase along the slope direction to form a stepped structure, and the filling material between adjacent retaining walls forms a stepped platform.
2. The assembled multi-row retaining wall according to claim 1, wherein, The retaining wall structure further comprises a connecting beam. Two ends of the connecting beam are arranged on the opposite side surfaces of two adjacent retaining walls.
3. The assembled multi-row retaining wall according to claim 1, wherein, At least one row of retaining walls near the slope side of the plurality of retaining walls is in a cantilevered or counterforted structure.
4. The assembled multi-row retaining wall according to claim 1, wherein, The foundation comprises two rows of foundation units. The two rows of foundation units are arranged in parallel in the ground at a preset interval.
5. The assembled multi-row retaining wall according to claim 4, wherein, One row of foundation units away from the slope side is in a continuous wall structure, and the continuous wall extends out of the ground line to a preset height. One row of foundation units near the slope side is in a plurality of piles arranged at a fixed interval.
6. The assembled multi-row retaining wall of claim 1, wherein, The stepped platform is provided with a planting groove or a green belt.
7. The assembled multi-row retaining wall according to claim 5, wherein, The retaining wall is provided with a water drainage hole penetrating through the two side surfaces of the wall.
8. The assembled multi-row retaining wall according to claim 7, wherein, The continuous wall is provided with a water drainage hole penetrating through the two side surfaces of the wall.
9. The assembled multi-row retaining wall of claim 1, wherein, The support beam and the plurality of retaining walls are in a prefabricated concrete structure.
10. The assembled multi-row retaining wall of claim 7, wherein, The retaining wall structure further comprises a drainage ditch and a filter layer. The drainage ditch is arranged on the ground surface away from the slope side of each row of retaining walls. The filter layer is arranged on the surface adjacent to the slope side of the retaining wall near the slope side.