Fabricated prefabricated part for local deepened part in foundation pit
By using prefabricated components in the locally deepened sections of the foundation pit, combined with the design of convex reinforcing rings and reinforcing columns, the stability problem of the inner wall of the foundation pit was solved. This achieved stable support for the inner wall of the locally deepened sections of the foundation pit, improving construction efficiency, reducing construction costs, and enhancing structural strength. The patented design also solved the problem of stable support in the locally deepened sections of the foundation pit, improving construction efficiency, reducing construction costs, and enhancing the stability of the foundation pit.
Patent Information
- Application Number
- CN202520488598.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In the construction of the inner sidewall of the foundation pit, especially for deep foundation pits, particularly for locally deepened parts such as sump pits and elevator shafts with loose soil, conventional construction methods cannot guarantee the stability of the sidewall, which can easily lead to landslides and collapses. This results in low construction efficiency and high costs.
Precast components are assembled in sections with localized deepening within the foundation pit. These components consist of a combination of male and female precast slabs. The structure is strengthened by the interlocking of protrusions and grooves, combined with steel rings and steel columns. The design of positioning grooves and support plates ensures stable installation and anti-slip properties of the components.
This achieved stable support for the sidewalls of the foundation pit, improved construction efficiency, reduced costs, and enhanced the safety and stability of the locally deepened parts of the foundation pit.
Smart Images
Figure CN223937168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foundation pit support technology, specifically a prefabricated assembly for locally deepened parts within a foundation pit. Background Technology
[0002] In building construction, foundation engineering, as a crucial component, plays a vital role in the safety of the building. However, the diverse geological conditions across my country present numerous challenges and variations to foundation construction. For deep excavations in soft soil, particularly in areas like sump pits and elevator shafts, the sidewalls become unstable after excavation, making landslides and collapses likely. Conventional methods, such as brick formwork for sidewall construction or sloping excavation, often fail to guarantee the quality of the pit sidewalls, leading to slope deformation, collapse, and soil erosion. These practices result in low construction efficiency, high costs, and difficulty in controlling project quality. Utility Model Content
[0003] The purpose of this utility model is to provide a prefabricated assembly for locally deepened sections within a foundation pit, in order to solve the problems mentioned in the background art.
[0004] The technical solution of this utility model is: a prefabricated component for locally deepened parts in a foundation pit, including two sub-clamp prefabricated plates and two female-clamp prefabricated plates. The two sub-clamp prefabricated plates and the two female-clamp prefabricated plates are connected end to end in a square shape. Each sub-clamp prefabricated plate has a protrusion at both ends. Each female-clamp prefabricated plate has a groove at both ends that engages with the protrusion. A support plate is placed at the bottom of the sub-clamp prefabricated plates and the female-clamp prefabricated plates.
[0005] The aforementioned components achieve the following effects: the protrusions can cooperate with the grooves to assemble the male and female precast panels at the bottom of the excavated foundation pit, providing protective support for the bottom sidewall of the foundation pit. The support plate can protect the bottom of the foundation pit. The use of precast concrete sidewall panels forms the sidewall of the pit in the locally deepened part of the foundation pit, which is convenient to install and dismantle, improves efficiency, and reduces costs.
[0006] Preferably, the sub-clamp precast slab and the mother-clamp precast slab are provided with steel reinforcement rings and steel reinforcement columns.
[0007] The effect achieved by the above components is that the steel reinforcement rings and steel reinforcement columns can increase the structural strength of the precast slabs of the male and female fasteners during prefabrication.
[0008] Preferably, the top and bottom of both the male and female prefabricated plates are provided with positioning grooves, and the top of the support plate is fixed with a positioning boss that matches the positioning groove.
[0009] The effect achieved by the above components is that the positioning groove facilitates the assembly of the male and female precast panels onto the positioning boss on the support plate, thus preventing misalignment and sliding between the male and female precast panels.
[0010] Preferably, a conical filling groove is provided at the center of the bottom of the support plate.
[0011] The effect achieved by the above components is that the filling groove facilitates the installation of the support plate on the concrete cushion layer laid in the foundation pit, increases the contact area between the support plate and the concrete cushion layer, and improves stability.
[0012] Preferably, the bottom edge of the support plate is provided with multiple anti-slip grooves arranged in a ring.
[0013] The effect achieved by the above components is that the anti-slip grooves can increase the anti-slip strength between the support plate and the concrete.
[0014] This utility model provides an improved prefabricated component for locally deepened sections within a foundation pit, which has the following improvements and advantages compared to the prior art:
[0015] Firstly, this utility model uses protrusions to cooperate with grooves to assemble the male and female precast panels at the bottom of the excavated foundation pit, providing protective support for the side wall of the bottom of the foundation pit. The support plate can protect the bottom of the foundation pit, and the precast concrete side wall panels form the side wall of the pit in the locally deepened part of the foundation pit. It is easy to install and dismantle, improves efficiency, and reduces costs.
[0016] Secondly, the positioning groove of this utility model facilitates the assembly of the male and female precast slabs onto the positioning boss on the support plate, preventing misalignment and slippage between the male and female precast slabs. The filling groove facilitates the installation of the support plate on the concrete cushion layer laid in the foundation pit, increasing the contact area between the support plate and the concrete cushion layer and improving stability. Attached Figure Description
[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a structural schematic diagram of the male and female prefabricated panels of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the support plate in this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Female precast slab; 2. Protrusion; 3. Female precast slab; 4. Groove; 5. Positioning groove; 6. Support plate; 7. Reinforcing ring; 8. Reinforcing column; 9. Positioning boss; 10. Filling groove; 11. Anti-slip groove. Detailed Implementation
[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0024] This utility model provides an improved prefabricated assembly component for locally deepened sections within a foundation pit. The technical solution of this utility model is as follows:
[0025] In embodiments of this utility model, such as Figures 1-3 As shown, a prefabricated component for locally deepened sections within a foundation pit includes two sub-clamp prefabricated slabs 1 and two female-clamp prefabricated slabs 3. Reinforcing steel rings 7 and reinforcing steel columns 8 are installed within the sub-clamp prefabricated slabs 1 and 3, respectively. These reinforcing steel rings 7 and columns 8 enhance the structural strength of the sub-clamp prefabricated slabs 1 and 3 during prefabrication. The two sub-clamp prefabricated slabs 1 and 2 are connected end-to-end in a square configuration. Each end of the sub-clamp prefabricated slab 1 has a protrusion 2, and each end of the female-clamp prefabricated slab 3 has a groove 4 that engages with the protrusions 2. The protrusions 2, in conjunction with the grooves 4, assemble the sub-clamp prefabricated slabs 1 and 3 at the bottom of the excavated foundation pit, providing protective support to the sidewalls of the pit bottom. The bottom ends of the sub-clamp prefabricated slabs 1 and 3 are... The support plate 6 is placed on the ground. The top and bottom of the male and female precast slabs 1 and 3 are provided with positioning grooves 5. The top of the support plate 6 is fixed with a positioning boss 9 that matches the positioning groove 5. The positioning groove 5 makes it easy for the male and female precast slabs 1 and 3 to be assembled on the positioning boss 9 on the support plate 6, and avoids misalignment and sliding between the male and female precast slabs 1 and 3. A conical filling groove 10 is provided at the center of the bottom of the support plate 6. The filling groove 10 makes it easy for the support plate 6 to be installed on the concrete cushion layer laid in the foundation pit, increasing the contact area between the support plate 6 and the concrete cushion layer. Multiple anti-slip grooves 11 are provided at the bottom edge of the support plate 6 in a ring. The anti-slip grooves 11 can increase the anti-slip strength between the support plate 6 and the concrete.
[0026] The working principle of the prefabricated component for locally deepened parts in the foundation pit provided by this utility model is as follows: First, a concrete cushion layer is laid at the bottom of the excavated foundation pit. Then, the prefabricated support plate 6 is placed on the concrete cushion layer. The concrete cushion layer fills the filling groove 10 at the bottom of the support plate 6. Then, the protrusion 2 can cooperate with the groove 4 to assemble the sub-clamp prefabricated plate 1 and the female-clamp prefabricated plate 3 at the bottom of the excavated foundation pit, which provides protective support for the side wall at the bottom of the foundation pit. The positioning groove 5 can facilitate the assembly of the sub-clamp prefabricated plate 1 and the female-clamp prefabricated plate 3 on the positioning boss 9 on the support plate 6, and prevent the sub-clamp prefabricated plate 1 and the female-clamp prefabricated plate 3 from being misaligned and sliding.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A prefabricated component for locally deepened sections within a foundation pit, comprising two sub-clamp prefabricated slabs (1) and two female-clamp prefabricated slabs (3), wherein the two sub-clamp prefabricated slabs (1) and the two female-clamp prefabricated slabs (3) are connected end-to-end in a square configuration, characterized in that: Both ends of the precast sub-plate (1) are provided with protrusions (2), and both ends of the precast female plate (3) are provided with grooves (4) that engage with the protrusions (2). Support plates (6) are placed at the bottom of the precast sub-plate (1) and the precast female plate (3).
2. The prefabricated component for locally deepened sections within a foundation pit according to claim 1, characterized in that: The sub-clamp precast slab (1) and the mother-clamp precast slab (3) are provided with steel rings (7) and steel columns (8).
3. The prefabricated component for locally deepened sections within a foundation pit according to claim 1, characterized in that: The top and bottom of the precast male buckle plate (1) and the precast female buckle plate (3) are provided with positioning grooves (5), and the top of the support plate (6) is fixed with a positioning boss (9) that matches the positioning groove (5).
4. The prefabricated component for locally deepened sections within a foundation pit according to claim 1, characterized in that: The support plate (6) has a cone-shaped filling groove (10) at the center of its bottom.
5. A prefabricated component for locally deepened sections within a foundation pit, as described in claim 4, characterized in that: The support plate (6) has multiple anti-slip grooves (11) arranged in a ring at the bottom edge.