A steep slope embankment concrete retaining wall reinforcing device
By combining a high-capping beam, a pile-top capping beam, an upper connecting beam, a lower connecting beam, and prestressed anchor cables, the deformation problem of concrete retaining walls on steep slope embankments was solved, the anti-overturning and anti-sliding performance was enhanced, the damage to the original wall was reduced, and the convenience of construction and the stability of the structure were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIFTH ENG DIV CORP LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
The deformation characteristics of concrete retaining walls on steep slope embankments affect their overturning stability and sliding resistance, and existing reinforcement methods are prone to causing wall cracking.
The structure adopts a combination of high-level capping beams, pile top capping beams, upper connecting beams, lower connecting beams, and prestressed anchor cables to connect the reinforcing piles and retaining walls into one unit. The stress point of the prestressed anchor cables is transferred to the reinforcing piles, which enhances the anti-overturning and anti-sliding performance. The structural stability is improved through the design of retaining plates and drainage ditches.
It improves the overturning and sliding resistance of the retaining wall, reduces damage to the original wall structure, is simple to construct and has a solid structure, and effectively prevents progressive damage.
Smart Images
Figure CN224531732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of retaining wall reinforcement technology, and in particular to a device for reinforcing concrete retaining walls on steep slope embankments. Background Technology
[0002] When concrete retaining walls on steep embankments exhibit significant tilting, bulging, or settlement, it directly impacts their overturning and sliding stability, thus threatening the safety and durability of the engineering structure. Without timely reinforcement, progressive damage may occur, potentially leading to the complete failure of the retaining wall. Reinforcement of concrete retaining walls typically involves adding anchor cables through openings in the wall surface to enhance their overturning resistance. However, concrete retaining walls generally lack internal steel reinforcement, making them prone to cracking under anchor cable tension, which is detrimental to the retaining wall's stability. Utility Model Content
[0003] This utility model provides a reinforcement device for concrete retaining walls on steep slope embankments, which solves the problem that deformation characteristics of existing retaining walls affect their anti-overturning stability and anti-sliding performance.
[0004] This utility model provides a reinforcement device for a concrete retaining wall on a steep slope embankment, including a height-adjusting cap beam fixed above the retaining wall. Multiple reinforcement piles are fixed to the outside of the retaining wall, and the multiple reinforcement piles are fixed together by a pile top cap beam. The pile top cap beam is fixed to the height-adjusting cap beam by multiple upper connecting beams. The lower end of the reinforcement pile is fixed to the retaining wall by a lower connecting beam. The reinforcement pile is inclined with a prestressed anchor cable, and the prestressed anchor cable passes through the retaining wall and extends into the slope body inside the retaining wall.
[0005] Preferably, the lower connecting beam includes a ground longitudinal beam fixed to the retaining wall, and the ground longitudinal beam is fixed to the reinforcing piles through multiple ground connecting beams, with each ground connecting beam and reinforcing pile corresponding to the other.
[0006] Preferably, multiple retaining plates are laid between the upper connecting beam and the ground connecting beam, and the two ends of the retaining plates extend to the inner side of the two reinforcing piles respectively.
[0007] Preferably, the space between the retaining plate and the retaining wall is filled with crushed stone.
[0008] Preferably, a gap is provided between the two retaining plates, and the prestressed anchor cable passes through the gap between the two retaining plates and is fixed to the anchor block on the outside of the reinforcing pile.
[0009] Preferably, the width of the ground connecting beam is greater than the width of the retaining plate.
[0010] Preferably, reinforcing bars are fixed between the raised cap beam and the retaining wall, and between the ground longitudinal beam and the retaining wall.
[0011] Preferably, a drainage ditch is provided between the backfill of the inner slope of the retaining wall and the connecting crown beam.
[0012] Preferably, the drainage ditch has a concrete layer on both sides of its opening, and the concrete layer and the bottom of the drainage ditch are covered with gravel.
[0013] Preferably, a prefabricated U-shaped ditch is nested inside the drainage ditch, and a cover plate is laid on top of the prefabricated U-shaped ditch.
[0014] Compared with existing technologies, in this invention, the pile cap beam fixes multiple reinforcing piles together. The upper end of the reinforcing pile is fixed to the existing retaining wall via an upper connecting beam and a height-adjusting cap beam, while the lower end is fixed to the retaining wall via a lower connecting beam. This integrates the reinforcing piles and the retaining wall into a single, robust structure. The retaining wall's resistance to overturning and sliding is enhanced through the reinforcing piles and prestressed anchor cables. The stress points of the prestressed anchor cables are located on the reinforcing piles, effectively reducing damage to the retaining wall. The overall structure is simple, and construction is convenient, taking place above and on the outside of the existing retaining wall. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is the right view of the present invention;
[0017] Figure 2 This is a front view of the present invention;
[0018] Figure 3 This is a top view of the present invention;
[0019] Figure 4 This is a partial structural schematic diagram of the present invention;
[0020] Figure 5 This is a schematic diagram of the drainage ditch of this utility model.
[0021] Figure label:
[0022] 1. Retaining wall, 2. Connecting cap beam, 3. Reinforcement pile, 4. Pile top cap beam, 5. Upper connecting beam, 6. Lower connecting beam, 61. Ground longitudinal beam, 62. Ground connecting beam, 7. Prestressed anchor cable, 8. Retaining plate, 9. Anchor block, 01. Rebar installation, 02. Drainage ditch, 03. Concrete layer, 04. U-shaped ditch, 05. Cover plate, 100. Slope. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] See attached document Figure 1 This embodiment provides a reinforcement device for a concrete retaining wall on a steep slope embankment, including a raised cap beam 2 fixed to the top of the retaining wall 1, and multiple reinforcing piles 3 fixed to the outside of the retaining wall 1, with the lower ends of the reinforcing piles 3 inserted into the ground. The multiple reinforcing piles 3 are fixed together by a pile top cap beam 4, and the pile top cap beam 4 is fixed to the raised cap beam 2 by multiple upper connecting beams 5. The lower ends of the reinforcing piles 3 are fixed to the retaining wall 1 by lower connecting beams 6. The reinforcing piles 3 have pre-embedded anchor holes for prestressed anchor cables 7 to pass through, and the reinforcing piles 3 are inclined with prestressed anchor cables 7, which pass through the retaining wall 1 and extend into the slope 100 inside the retaining wall 1. This utility model connects the retaining wall 1 and the reinforcing piles 3 into a single unit via a high-cap beam 2, a pile top cap beam 4, an upper connecting beam 5, and a lower connecting beam 6, resulting in a stable overall structure. Prestressed anchor cables 7 on the reinforcing piles 3 are then anchored within the slope 100 on the inner side of the retaining wall 1, thereby improving the overturning and sliding resistance of the retaining wall 1. The overall structure is simple, and the stress point of the prestressed anchor cables 7 is transferred from the retaining wall 1 to the reinforcing piles 3, minimizing damage to the original retaining wall 1.
[0025] One embodiment of the lower connecting beam 6: Refer to the appendix Figure 2 The lower connecting beam 6 includes a ground longitudinal beam 61 fixed to the retaining wall 1. The ground longitudinal beam 61 is fixed to the reinforcing piles 3 through multiple ground connecting beams 62. The ground connecting beams 62 and the reinforcing piles 3 are set one-to-one. The length of the ground longitudinal beam 61 is the same as the length of the retaining wall 1, and the length of the ground connecting beam 62 is less than or equal to the length of the reinforcing piles 3. The ground longitudinal beam 61 and the ground connecting beams 62 are cast integrally to form the lower connecting beam 6, which is cast integrally with the reinforcing beam. One embodiment of fixing the ground longitudinal beam 61 to the retaining wall 1 is as follows: the ground longitudinal beam 61 and the retaining wall 1 are fixedly connected by rebar 01. The ground longitudinal beam 61 and the retaining wall 1 are set with equal lengths, so that the ground longitudinal beam 61 cast later can be more firmly connected to the original retaining wall 1.
[0026] As another embodiment of this utility model: refer to the appendix Figure 3Multiple retaining plates 8 are laid between the upper connecting beam 5 and the ground connecting beam 62. The two ends of each retaining plate 8 extend to the inner sides of two reinforcing piles 3, with gaps between them. The openings of the anchor cable holes are located within these gaps, and the prestressed anchor cables 7 pass through the gaps between the two retaining plates 8 and are fixed to the anchor blocks 9 on the outer side of the reinforcing piles 3. This structural design avoids interference between the retaining plates 8 and the prestressed anchor cables 7, facilitating construction.
[0027] As another embodiment of this utility model: two prestressed anchor cables 7 are fixed on each reinforcing pile 3. The two prestressed anchor cables 7 are distributed vertically, and the anchor block 9 is located at the upper end of the reinforcing pile 3. This helps to increase the bending moment of the prestressed anchor cables 7 on the bottom of the retaining wall 1, which can further improve the overturning resistance of the retaining wall 1.
[0028] As another embodiment of this utility model: the space between the retaining plate 8 and the retaining wall 1 is filled with gravel, and the width of the ground connecting beam 62 is greater than the width of the retaining plate 8. This structural design leaves a gap between the ground longitudinal beam 61 and the retaining plate 8, which facilitates drainage, and there is no need to set drainage holes separately on the lower connecting beam 6.
[0029] As another embodiment of this utility model: refer to the appendix Figure 4 A reinforcing bar 01 is fixed between the raised cap beam 2 and the retaining wall 1. The length of the raised cap beam 2 is the same as the length of the retaining wall 1. The post-cast raised cap beam 2 is fixed to the existing retaining wall 1 by the reinforcing bar 01. This structural design ensures a firm connection between the raised cap beam 2 and the retaining wall 1. The length of the upper connecting beam 5 is less than or equal to the length of the reinforcing pile 3. The different lengths of the ground connecting beam 62 and the ground longitudinal beam 61 also help to reduce the amount of concrete used. Specifically, the raised cap beam 2, the upper connecting beam 5, and the reinforcing pile 3 are cast integrally.
[0030] As another embodiment of this utility model: a drainage ditch 02 is provided between the fill of the slope 100 on the inner side of the retaining wall 1 and the connecting crown beam 2 to prevent water from seeping into the embankment (fill).
[0031] In another embodiment of this utility model: concrete layers 03 are laid on both sides of the opening of the drainage ditch 02, and gravel is laid below the concrete layers 03 and the drainage ditch 02. After the high-ceiling beam 2 is installed on the original retaining wall 1, the gap between the high-ceiling beam 2 and the embankment (fill) is sealed with concrete, and a drainage ditch 02 is added.
[0032] As another embodiment of this utility model: refer to the appendix Figure 5 A prefabricated U-shaped ditch body 04 is nested inside the drainage ditch 02, and a cover plate 05 is laid on top of the prefabricated U-shaped ditch body 04. A temporary drainage ditch 02 is constructed first, and a prefabricated U-shaped ditch body 04 is nested inside the temporary drainage ditch 02 to serve as a permanent drainage ditch 02. This structural design facilitates construction.
[0033] Specifically, the upper end of the lower connecting beam 6 is exposed above the ground, while the lower end is located below the ground.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A device for reinforcing concrete retaining walls on steep slope embankments, characterized in that, The structure includes a raised cap beam fixed above the retaining wall, multiple reinforcing piles fixed on the outer side of the retaining wall, the multiple reinforcing piles being fixed together by a pile top cap beam, the pile top cap beam being fixed to the raised cap beam by multiple upper connecting beams, the lower end of the reinforcing piles being fixed to the retaining wall by a lower connecting beam, and the reinforcing piles being inclined with prestressed anchor cables, the prestressed anchor cables passing through the retaining wall and extending into the slope body inside the retaining wall.
2. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 1, characterized in that, The lower connecting beam includes a ground longitudinal beam fixed to the retaining wall. The ground longitudinal beam is fixed to the reinforcing piles through multiple ground connecting beams, and the ground connecting beams and reinforcing piles are set in a one-to-one correspondence.
3. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 2, characterized in that, Multiple retaining plates are laid between the upper connecting beam and the ground connecting beam, and the two ends of the retaining plates extend to the inner side of the two reinforcing piles respectively.
4. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 3, characterized in that, The space between the retaining plate and the retaining wall is filled with gravel.
5. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 4, characterized in that, A gap is provided between the two retaining plates, and the prestressed anchor cable passes through the gap between the two retaining plates and is fixed to the anchor block on the outside of the reinforcing pile.
6. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 5, characterized in that, The width of the ground connecting beam is greater than the width of the retaining plate.
7. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 1, characterized in that, Rebar is fixed between the connecting beam and the retaining wall, and between the ground longitudinal beam and the retaining wall.
8. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 1, characterized in that, A drainage ditch is provided between the backfill of the inner slope of the retaining wall and the connecting crown beam.
9. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 8, characterized in that, The drainage ditch has concrete layers on both sides of its opening, and gravel is laid below the concrete layers and the drainage ditch.
10. The device for reinforcing concrete retaining walls on steep slope embankments according to claim 9, characterized in that, The drainage ditch is nested with a prefabricated U-shaped ditch body, and a cover plate is laid on top of the prefabricated U-shaped ditch body.