Iron tower foundation pile plate protection structure close to foundation pit
By installing a reinforced concrete pile-slab protective structure between the tower foundation and the foundation pit, the problem of tower foundation instability was solved, improving stability and safety while controlling costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC THIRD HARBOR ENGINEERING CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-12
AI Technical Summary
Where existing municipal underground passages are located near high-voltage power towers, there are no protective structures, which leads to unstable tower foundations and poses safety hazards.
Design a pile-slab protective structure for a tower foundation near an excavation pit, including pile foundations, connecting beams, side walls, and a panel. The structure is made of reinforced concrete. The pile foundations are arranged in an "I" shape. The connecting beams and side walls are connected as a whole, with an expansion joint in the middle. The joint is filled with low-foamed polyethylene sealant and sealant.
This improved the stability and safety of the tower foundation while reducing costs and ensuring the safety of the tower foundation.
Smart Images

Figure CN224227860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a protective structure for the foundation pile plate of a tower near a foundation pit. Background Technology
[0002] With my country's sustained economic development and accelerated urbanization, the agglomeration of population and industries has squeezed the space for human living activities. A series of problems, such as the scarcity of land resources, urban traffic congestion, and increased environmental pollution, have attracted widespread attention. Under these circumstances, municipal underground roads will inevitably become an indispensable backbone of urban transportation infrastructure.
[0003] Existing systems lack protective structures for tower foundations when municipal underground passages are near high-voltage power towers, which can easily lead to danger. To ensure the safety of the towers, a stable structure is needed to protect the tower foundations. Therefore, a pile-slab protection structure for tower foundations near foundation pits is proposed to address the above issues. Utility Model Content
[0004] The purpose of this utility model is to overcome the existing defects and provide a protective structure for the pile plate of the tower foundation near the foundation pit. It has good stability, high safety and low cost, and ensures the safety of the tower foundation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pile-slab protective structure for a tower foundation adjacent to a foundation pit, set between the tower foundation and the foundation pit, comprising a pile foundation, a connecting beam, a side wall, and a panel; the pile foundation includes multiple side piles and multiple central piles, the multiple side piles and the multiple central piles are arranged in an "I" shape, the connecting beam is set on the multiple central piles, the side wall is set on the multiple side piles, and the panel connects the connecting beam and the side wall into a whole, with an expansion joint left in the middle.
[0006] Preferably, the expansion joint is filled with low-foaming polyethylene sealant and the surface is filled with sealant.
[0007] Preferably, both the side piles and the center piles are reinforced concrete cast-in-place piles.
[0008] Preferably, the connecting beam is a C30 reinforced concrete structure.
[0009] Preferably, the sidewall is a C30 reinforced concrete structure.
[0010] Preferably, the panel is a C30 reinforced concrete structure.
[0011] Preferably, the sidewalls and the panel are level with the ground.
[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This protective pile-slab structure for tower foundations adjacent to the foundation pit is set between the tower foundation and the foundation pit, closely attached to the tower foundation, parallel to the foundation pit, and at a distance of 2m. It includes pile foundations, connecting beams, side walls, and a panel; the pile foundation includes multiple side piles and multiple central piles arranged in an "I" shape; the connecting beams are set on the central piles, the side walls are set on the side piles, and the panel connects the connecting beams and side walls into a whole, with an expansion joint in the middle. The structure has good stability, high safety, and low cost, ensuring the safety of the tower foundation. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a plan view of the protective structure of the iron tower foundation pile plate near the foundation pit of this utility model;
[0015] Figure 2 This is a cross-sectional view of the side pile of the protective structure of the iron tower foundation slab near the foundation pit of this utility model;
[0016] Figure 3 This is a cross-sectional view of the central pile of the pile-slab protection structure for the iron tower foundation near the foundation pit of this utility model;
[0017] Figure 4 This is a cross-sectional view of the deformation joint of the pile-slab protection structure of the iron tower foundation near the foundation pit of this utility model.
[0018] In the diagram: 1. Side pile; 2. Middle pile; 3. Connecting beam; 4. Side wall; 5. Panel; 6. Expansion joint; 6-1. Low-foaming polyethylene sealant board; 6-2. Sealant; 7. Tower foundation; 8. Foundation pit; 9. Ground. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4A pile-slab protective structure for a tower foundation adjacent to an excavation pit is installed between the tower foundation 7 and the excavation pit 8, closely attached to the tower foundation 7 and parallel to the excavation pit 8, at a distance of 2m. It includes pile foundations, connecting beams 3, side walls 4, and a panel 5. The pile foundations consist of multiple side piles 1 and multiple central piles 2, arranged in an "I" shape. The connecting beams 3 are installed on the central piles 2, and the side walls 4 are installed on the side piles 1. The panel 5 connects the connecting beams 3 and the side walls 4 into a whole, with an expansion joint 6 in the middle.
[0021] Specifically, the side piles 1 are distributed at both ends of the structure, with 3 piles installed at a spacing of 2.4m; the center piles 2 are arranged on the center line of the structure, with 10 piles installed at a spacing of 1.8m.
[0022] Specifically, the interior of the expansion joint 6 is filled with low-foaming polyethylene sealant 6-1, and the surface is filled with sealant 6-2.
[0023] Specifically, both side pile 1 and center pile 2 are reinforced concrete cast-in-place piles. The pile diameter is 0.6m, the total length is 18.5m, the effective pile length is 18m, and 500mm of the pile top is removed to expose the main reinforcement. They are cast together with the connecting beam 3.
[0024] Specifically, connecting beam 3 is a C30 reinforced concrete structure. It is 22m long, 0.8m wide, and 0.4m high.
[0025] Specifically, side wall 4 is a C30 reinforced concrete structure. It is 6.8m long, 0.8m wide, and 0.8m high.
[0026] Specifically, panel 5 is a C30 reinforced concrete structure. It is 22m long and 6.8m wide, with a thickness of 0.4m at the top of connecting beam 3, a minimum thickness of 0.2m on both sides, and a linear change in the middle section.
[0027] Specifically, the elevations of sidewall 4 and panel 5 are flush with the ground level 9.
[0028] This protective pile-slab structure for the tower foundation adjacent to the excavation pit is located between the tower foundation 7 and the excavation pit 8, closely attached to the tower foundation 7 and parallel to the excavation pit 8, at a distance of 2m. It includes pile foundations, connecting beams 3, side walls 4, and a panel 5. The pile foundation consists of multiple side piles 1 and multiple central piles 2, arranged in an "I" shape. The connecting beams 3 are mounted on the central piles 2, and the side walls 4 are mounted on the side piles 1. The panel 5 connects the connecting beams 3 and the side walls 4 into a whole, with an expansion joint 6 in the middle. The structure offers good stability, high safety, and low cost, ensuring the safety of the tower foundation.
[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A pile-slab protective structure for a tower foundation adjacent to an excavation pit, disposed between the tower foundation (7) and the excavation pit (8), characterized in that, It includes pile foundation, connecting beam (3), side wall (4) and panel (5); the pile foundation includes multiple side piles (1) and multiple middle piles (2), the multiple side piles (1) and the multiple middle piles (2) are arranged in an "I" shape, the connecting beam (3) is set on the multiple middle piles (2), the side wall (4) is set on the multiple side piles (1), and the panel (5) connects the connecting beam (3) and the side wall (4) into a whole, and leaves an expansion joint (6) in the middle position.
2. The pile-slab protection structure for tower foundations adjacent to the foundation pit as described in claim 1, characterized in that, The expansion joint (6) is filled with low-foaming polyethylene filler board 6-1 and the surface is filled with sealant 6-2.
3. The pile-slab protection structure for tower foundations adjacent to the foundation pit as described in claim 1, characterized in that, Both the side pile (1) and the center pile (2) are reinforced concrete cast-in-place piles.
4. The pile-slab protection structure for tower foundations adjacent to the foundation pit as described in claim 1, characterized in that, The connecting beam (3) is a C30 reinforced concrete structure.
5. The pile-slab protection structure for tower foundations adjacent to the foundation pit as described in claim 1, characterized in that, The side wall (4) is a C30 reinforced concrete structure.
6. The pile-slab protection structure for tower foundations adjacent to the foundation pit as described in claim 1, characterized in that, The panel (5) is a C30 reinforced concrete structure.
7. The pile-slab protection structure for tower foundations adjacent to the foundation pit as described in claim 1, characterized in that, The sidewall (4) and the panel (5) are level with the ground (9).