Substrate reinforcing structure of full-assembly type station under sludge stratum
By setting up the structure of vertical reinforcement in the middle and sides of the bottom plate of the full -assembly station, the problem of uneven base settlement and low reinforced utilization rate in the existing technology has been solved, and a higher base carrier capacity and peaceful integration is achieved to ensure that ensure that The uniform assembly of the bottom plate component.
Patent Information
- Application Number
- CN202421158280.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-24
AI Technical Summary
Under the silt formation of fully assembled stations, the existing 3mX3m pumping strip reinforcement structure has problems such as arching, uneven settlement and low reinforcement utilization, which affects the base flatness and the assembly of base plate components.
Set up a flat band in the middle and sides of the bottom plate of the full -assembly station, and set up the vertical reinforcement of the vertical setting along the station at the bottom. The height of the middle reinforcement is lower than the two sides. The length is 3M and 4M, respectively.
The base bearing capacity is increased, and the uneven settlement is reduced to ensure the flatness of the base and the assembly of the bottom plate component. At the same time, the passive soil pressure in the pit during excavation is improved.
Smart Images
Figure CN222413126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subway station base reinforcement, in particular to a base reinforcement structure of a fully assembled station under a silt stratum. Background Art
[0002] When the main base of a subway station is a silt stratum, 3mX3m strip reinforcement (transversely arranged reinforcement bodies) is generally used. The purpose of base reinforcement is, on the one hand, to increase the passive soil reaction force in the pit during excavation, and on the other hand, to increase the bearing capacity of the foundation and reduce the settlement of the station after construction.
[0003] like Figure 1-3 As shown in the figure, when the base of the fully assembled station is a mud stratum, if 3mX3m strip reinforcement (transversely arranged reinforcement body) is used, there are the following disadvantages:
[0004] 1) The floor of the fully assembled station is arched, and the thickness of the reinforcement in the middle section is only about 2m due to the excavation of the foundation pit, which reduces the utilization rate of the reinforcement;
[0005] 2) The fully assembled station has high requirements for the flatness of the base. The 3mX3m strip reinforcement (transversely arranged reinforcement body) has hollow sections, and the silt stratum has low bearing capacity and the base is disturbed after excavation, which can easily lead to uneven settlement of the base, thus affecting the assembly of the bottom plate components;
[0006] 3) The fully prefabricated station floor components adopt a 2m module, but the 3m pull-out reinforcement is inconsistent with the 2m module, and the reinforced base cannot be evenly aligned, which can easily lead to uneven settlement of the station after construction. Summary of the invention
[0007] The utility model aims to overcome the deficiencies of the prior art and provide a base reinforcement structure for a fully assembled station under a muddy stratum.
[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0009] A base reinforcement structure of a fully assembled station under a silt stratum comprises a fully assembled station floor, wherein fine-leveling strips are respectively fixed to the middle and two side areas of the arch bottom of the fully assembled station floor, and longitudinal reinforcement bodies arranged along the longitudinal direction of the station are respectively provided at the bottom of the middle fine-leveling strip and the two side fine-leveling strips, and the height of the longitudinal reinforcement body located in the middle is lower than that of the longitudinal reinforcement bodies located on the two sides.
[0010] Furthermore, the cross-sections of the longitudinal reinforcement body located in the middle and the longitudinal reinforcement bodies located on both sides are both square.
[0011] Furthermore, the cross-sectional side length of the longitudinal reinforcement body located in the middle is 3m, and the cross-sectional side length of the longitudinal reinforcement bodies located on both sides is 4m.
[0012] The utility model adopts the above technical scheme, which has the beneficial effects of: arranging longitudinal reinforcement bodies under the fine-leveling strip areas in the middle and on both sides of the fully assembled station floor to improve the base bearing capacity, reduce uneven settlement, ensure the flatness of the base and the assembly of the floor components, and also increase the passive earth pressure in the pit during excavation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention is further described in detail below with reference to the accompanying drawings and specific implementations:
[0014] Figure 1 The plan view of the fully assembled station base using 3mX3m drawer reinforcement (transversely arranged reinforcement body);
[0015] Figure 2 The cross-sectional view of the fully assembled station base using 3mX3m drawer reinforcement (transversely arranged reinforcement body);
[0016] Figure 3 The longitudinal section of the fully assembled station base using 3mX3m reinforcement (transverse reinforcement body);
[0017] Figure 4 It is a plan view of the base strip reinforcement structure of the utility model;
[0018] Figure 5 It is a cross-sectional view of the base strip reinforcement structure of the utility model;
[0019] Figure 6 It is a longitudinal section view of the base strip reinforcement structure of the utility model. DETAILED DESCRIPTION
[0020] like Figure 4-6 As shown, the utility model is a base reinforcement structure of a fully assembled station under a silt stratum, comprising a fully assembled station floor 1, and fine-leveling strips are respectively fixed in the middle and two side areas of the arch bottom of the fully assembled station floor 1. The utility model is also based on the principle of strip reinforcement in the prior art, the difference being that longitudinal reinforcement bodies 2 and 3 arranged along the longitudinal direction of the station are respectively provided at the bottom of the middle fine-leveling strip and the two side fine-leveling strips, and the height of the longitudinal reinforcement body 2 located in the middle is lower than the height of the longitudinal reinforcement bodies 3 located on the two sides.
[0021] As a preferred embodiment, the cross-sections of the longitudinal reinforcement body 2 located in the middle and the longitudinal reinforcement bodies 3 located on both sides are both square, wherein the cross-section side length of the longitudinal reinforcement body 2 located in the middle is 3m, and the cross-section side length of the longitudinal reinforcement bodies 3 located on both sides is 4m.
[0022] The utility model arranges longitudinal reinforcement bodies under the fine-leveling strip areas in the middle and on both sides of the fully assembled station floor to improve the base bearing capacity, reduce uneven settlement, ensure the flatness of the base and the assembly of the floor components, and also improve the passive earth pressure in the pit during excavation.
[0023] The above describes the specific implementation of the present invention, but those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this implementation without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.
Claims
1. A base reinforcement structure of a fully assembled station under a silt stratum, comprising a fully assembled station floor, wherein fine leveling strips are respectively fixed to the middle and both side areas of the arch bottom of the fully assembled station floor, and characterized in that: Longitudinal reinforcement bodies arranged along the longitudinal direction of the station are respectively arranged at the bottom of the middle fine-leveling strip and the fine-leveling strips on both sides, and the height of the longitudinal reinforcement body located in the middle is lower than the height of the longitudinal reinforcement bodies located on both sides.
2. The base reinforcement structure of a fully assembled station under a muddy stratum according to claim 1 is characterized by: The cross sections of the longitudinal reinforcement body located in the middle and the longitudinal reinforcement bodies located on both sides are square.
3. The base reinforcement structure of a fully assembled station under a muddy stratum according to claim 2 is characterized by: The cross-sectional side length of the longitudinal reinforcement body located in the middle is 3m, and the cross-sectional side length of the longitudinal reinforcement bodies located on both sides is 4m.