Anti-settlement integral structure for indoor equipment foundation

By adopting an integrated structure of foundation slab, foundation beam, pile foundation and pile cap in the indoor equipment foundation, the problem of equipment settlement in soft soil areas is solved, the project cost is reduced and the equipment is protected, and structural optimization and lightweighting are achieved.

CN121629958APending Publication Date: 2026-03-10CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In areas with poor geological conditions such as soft soil, indoor equipment foundations are prone to tilting, misalignment of pipelines, and cracking of building floors due to soil settlement. Existing technologies for large-size raft foundations involve large engineering volume and high cost.

Method used

The system employs a thinner foundation slab combined with foundation beams, pile foundations, and pile caps to form an integrated structure. The load is transferred to the pile foundations through the foundation beams, avoiding direct bearing by the backfill. The foundation slab covers the entire equipment room area, providing a unified and stable foundation.

Benefits of technology

Significantly reduces the amount of engineering work, lowers project costs, protects equipment from settlement effects, achieves structural optimization and lightweighting, and reduces foundation settlement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an anti-settlement integral structure for an indoor equipment foundation, which is characterized in that the structure comprises a foundation plate, a pile foundation, a pile cap and a foundation beam, the foundation plate is configured to bear indoor equipment, and the range of the foundation plate covers the range of a whole equipment room; the lower part of the foundation plate is connected with the pile cap and the foundation beam; the foundation beams are arranged between the pile caps on the lower portion of the foundation plate and used for connecting the multiple pile caps and the foundation plate. The pile cap is arranged below the frame column, the upper part of the pile cap is connected with the foundation plate, and the lower part of the pile cap is arranged on the pile foundation; one end of the pile foundation supports the pile cap, and the other end of the pile foundation is fixed on the ground. Compared with the prior art, the foundation plate with the small thickness is adopted to replace a traditional thick raft plate, the engineering amount of a foundation and a pile foundation is remarkably reduced, and therefore the engineering cost is reduced. And the foundation beam is arranged below the thin foundation plate, so that the span of the plate is reduced, the thickness is reduced, and meanwhile, effective bearing can still be realized. By means of the structure, the load of the foundation plate is transmitted to the pile foundation through the foundation beam instead of being directly borne by indoor filling soil. Therefore, even if indoor filled soil settles, the foundation plate and equipment above the foundation plate cannot be influenced, and foundation settlement is effectively reduced.
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Description

Technical Field

[0001] This application relates to indoor anti-settlement structures, and more particularly to an integral anti-settlement structure for indoor equipment foundations. Background Technology

[0002] When there is a thick layer of fill soil beneath the ground floor of an indoor building, or when the ground is subjected to a large usage load, especially in areas with unfavorable geological conditions such as soft soil, the foundation soil is prone to significant compression deformation, leading to excessive settlement of the indoor equipment foundation. Such settlement can not only cause equipment tilting and pipeline misalignment, affecting their normal operation and safety, but may also cause cracks in the building floor and changes in elevation, thereby interfering with the normal use of the building space.

[0003] To address the settlement issue of indoor equipment foundations in areas with thick fill and soft soil, current technologies typically design building foundations as large-scale raft foundations, allowing equipment foundations to rest directly on top of the raft. However, this approach involves a large amount of foundation work, significantly increasing project costs. Therefore, there is an urgent need for a more economical method to reduce the settlement of indoor equipment foundations. Summary of the Invention

[0004] The purpose of this application is to provide an anti-settlement integral structure for indoor equipment foundations.

[0005] Specifically, this application discloses an anti-settlement integral structure for indoor equipment foundations, the structure comprising: a foundation slab, pile foundations, pile caps, and foundation beams, wherein: The base slab is configured to support the indoor equipment and covers the entire equipment room area; the pile cap and the foundation beam are connected to the lower part of the base slab. The foundation beams are arranged between the pile caps at the bottom of the foundation slab, connecting multiple pile caps to support the foundation slab. The pile cap is disposed under the frame column, with its upper part connected to the foundation slab and its lower part disposed on the pile foundation; One end of the pile foundation supports the pile cap, and the other end is embedded in good soil.

[0006] In a preferred embodiment, the upper part of the foundation slab is connected to the pile caps and foundation beams of the building's frame columns.

[0007] In a preferred embodiment, the pile cap is positioned under the frame column.

[0008] In a preferred embodiment, the top of the foundation beam is flush with the foundation slab and the pile cap.

[0009] In a preferred embodiment, the thickness of the base plate is 200-400 mm.

[0010] In a preferred embodiment, the pile cap is a two-pile or multi-pile cap, the length, width and height of which are designed according to the load it bears.

[0011] In a preferred embodiment, the foundation slab is a reinforced concrete structure, and its reinforcement consists of double-layered, bidirectional steel bars with a diameter of 10-20 mm and a spacing of 100-150 mm.

[0012] In a preferred embodiment, the area of ​​the base plate is configured to cover the entire interior area up to the exterior wall.

[0013] In a preferred embodiment, the foundation slab, pile cap, and foundation beam are configured to be cast together.

[0014] The main advantages of this application are: (1) By using a foundation slab with a smaller thickness to replace the traditional thick raft slab, the present invention significantly reduces the amount of foundation and pile foundation work, thereby reducing the project cost.

[0015] (2) The structure designed in this invention allows the load of the foundation slab to be transferred to the pile foundation through the foundation beam, rather than being directly borne by the indoor backfill. Therefore, even if the indoor backfill settles, it will not affect the foundation slab and the equipment above it, effectively reducing foundation settlement.

[0016] (3) The foundation slab of this invention, which covers the entire indoor space, provides a unified and stable foundation for all equipment, effectively protecting all equipment from damage caused by factors such as uneven settlement. (4) By setting a foundation beam under the thin foundation plate, the present invention reduces the span of the plate, so that it can still effectively bear the load while reducing the thickness, thus achieving structural optimization and lightweighting.

[0017] The specification of this application contains numerous technical features distributed across various technical solutions. Listing all possible combinations of these technical features (i.e., technical solutions) would make the specification excessively lengthy. To avoid this problem, the various technical features disclosed in the above-described invention, the various technical features disclosed in the following embodiments and examples, and the various technical features disclosed in the accompanying drawings can be freely combined to form various new technical solutions (all of which should be considered as described in this specification), unless such a combination of technical features is technically infeasible. For example, one example discloses feature A+B+C, and another example discloses feature A+B+D+E. Features C and D are equivalent technical means that serve the same function, and technically only one needs to be used; they cannot be used simultaneously. Feature E can technically be combined with feature C. Therefore, the solution A+B+C+D should not be considered as described because it is technically infeasible, while the solution A+B+C+E should be considered as described. Attached Figure Description

[0018] Figure 1 This is a top view of the relay room in one embodiment of the present invention; Figure 2 This is a plan view of the pile cap and foundation beam in an embodiment of the present invention; Figure 3 This is a schematic diagram of the combination of the foundation plate, pile cap, and frame column in one embodiment of the present invention; Figure 4 This is a perspective view of the overall structure of an embodiment of the present invention.

[0019] Attached reference numerals: 1-Foundation slab; JLL-Foundation beam; CTL-Pile cap; 2-Pile foundation; 3-Frame column. Detailed Implementation

[0020] Through meticulous and in-depth research, the inventors of this invention have developed, for the first time, an integrated anti-settlement structure for indoor equipment foundations. Compared with existing technologies, this invention uses a thinner foundation slab instead of the traditional thick raft slab, significantly reducing the amount of foundation and pile foundation work, thereby lowering project costs. The structure of this invention allows the load of the foundation slab to be transferred to the pile foundation through foundation beams, rather than being directly borne by the indoor backfill. Therefore, even if the indoor backfill settles, it will not affect the foundation slab or the equipment above it, effectively reducing foundation settlement. The foundation slab covering the entire interior provides a unified and stable foundation for all equipment, effectively protecting all equipment from damage caused by uneven settlement and other factors. Furthermore, by setting foundation beams under the thin foundation slab, this invention reduces the span of the slab, enabling it to effectively bear loads while reducing thickness, achieving structural optimization and lightweighting.

[0021] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the invention, but do not limit the invention in any way. It should be understood that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. These modifications and improvements all fall within the scope of protection of the present invention.

[0022] Example Specifically, one embodiment of the present invention is as follows: Figure 1-4 As shown. This embodiment is applied to the relay room of a power plant, as shown in the figure. Figure 1 As shown, this is a single-story reinforced concrete frame structure with axial dimensions of 20.3m x 13.9m and a height of 4.5m. The interior houses 100 power distribution cabinets, surrounded by cable trenches. Excessive settlement of the cabinet foundations could break the cables, causing an electrical safety accident. Therefore, this embodiment requires careful attention to indoor settlement. If the power distribution cabinets, cable trenches, and building columns were to be integrated using a pile-raft foundation, the amount of pile and foundation work would be large, resulting in high costs. The overall structural solution provided in this embodiment is as follows: The overall structure includes a foundation slab 1. In this embodiment, the foundation slab 1 is a 300mm thick reinforced concrete structure, and the reinforcement is arranged in a double layer with a diameter of 10mm and a spacing of 100mm. The foundation slab 1 is configured to support the indoor equipment and is connected to the frame column 3 of the building at the top. The foundation slab 1 is equipped with the pile cap and the foundation beam JLL at the bottom. The foundation beam JLL is arranged between the pile caps CTLs at the bottom of the foundation slab 1 and is used to connect the multiple pile caps CTLs and the foundation slab 1. The pile cap CTL is configured under the frame column 3, with its upper part connected to the foundation plate 1 and its lower part configured on the pile foundation 2; One end of the pile foundation 2 supports the pile cap CTL, and the other end is fixed to the ground.

[0023] In this embodiment, the top of the foundation beam JLL is flush with the top of the pile cap CTL. The foundation beam JLL supports the cabinet foundation, transferring the cabinet load to the pile cap CTL, which is ultimately borne by the piles 2. The foundation beam arrangement is as follows: Figure 2 As shown, the foundation beams are arranged in a cross shape under the foundation slab. In this embodiment, the pile cap has dimensions of 4000mm in length, 1600mm in width, and 800mm in height.

[0024] In this embodiment, the pile caps are configured in both horizontal and vertical ways. Depending on the placement of the pile caps CTLs, the foundation beams JLLs only need three length specifications to connect the pile caps CTLs in pairs.

[0025] The coverage area of ​​the base plate in this embodiment is as follows: Figure 3 As shown, the foundation slab is configured to cover the entire interior area up to the exterior wall. Furthermore, in this embodiment, the foundation slab, pile cap, and foundation beam are configured to be cast together.

[0026] The perspective view of the front view in this embodiment is as follows: Figure 4 As shown, the top of the foundation slab supports the display case and transfers the load to the building foundation through the foundation beam, which is ultimately borne by the pile foundation. Settlement of the indoor backfill will not affect the foundation slab, thus achieving the purpose of reducing foundation settlement.

[0027] Furthermore, it should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. In this patent application, if it refers to performing an action according to a certain element, it means performing the action at least according to that element, including two cases: performing the action only according to that element, and performing the action according to that element and other elements. Expressions such as "multiple," "repeatedly," and "various" include two, two times, two kinds, and more than two, more than two times, and more than two kinds.

Claims

1. A monolithic structure for a settlement-resistant foundation of an indoor facility, characterized by, The structure comprises a base plate, a pile foundation, a pile cap and a foundation beam, wherein: The base plate is configured to bear the indoor equipment, and the base plate covers the entire equipment room range; the lower part of the base plate is configured with the pile cap and the foundation beam; The foundation beam is configured between the pile caps under the lower part of the base plate, connects a plurality of pile caps, and is used for supporting the base plate; The pile cap is configured under the frame column, the upper part of the pile cap is connected with the base plate, and the lower part of the pile cap is configured on the pile foundation; One end of the pile foundation supports the pile cap, and the other end is embedded into a good soil layer.

2. The anti-settling monolith of claim 1, wherein, The upper part of the base plate is connected with the pile cap and the foundation beam of the frame column of the building.

3. The anti-settling monolithic structure according to claim 2, wherein, The pile cap is configured under the frame column.

4. The anti-settling monolith of claim 3, wherein, The top of the foundation beam is flush with the base plate and the pile cap.

5. The anti-settling monolithic structure according to claim 1, wherein The thickness of the base plate is 200-400 mm.

6. The anti-settling monolithic structure according to claim 1, wherein The pile cap adopts two or more pile caps, and the length, width and height are designed according to the load borne.

7. The anti-settling monolithic structure according to claim 1, wherein The base plate is a reinforced concrete structure, and the reinforcement adopts double-layer and double-direction arranged steel bars with a diameter of 10-20 mm and a spacing of 100-150 mm.

8. The anti-settling monolithic structure according to claim 1, wherein The area range of the base plate is configured to cover the entire indoor area until the outdoor wall.

9. The anti-settling monolithic structure according to claim 1, wherein, The base plate, the pile cap and the foundation beam are configured to be poured together.