Detachable concrete-filled steel tube foundation pit supporting system
A technology for concrete filled steel tube and foundation pit support, which is applied in basic structure engineering, construction, excavation, etc., can solve the problems of long construction period, small safety reserve, affecting construction, etc., and achieves large remaining operating space for foundation pits and a high degree of industrialization. , the effect of easy installation and disassembly
Active Publication Date: 2021-07-20
FUZHOU UNIV
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The reinforced concrete inner support has the following problems: (1) Concrete needs to be poured on site, and the foundation pit can only be excavated after the concrete reaches a certain strength, which has a long construction period and affects the progress of the project; Reinforced concrete internal support, the demolition cost is high, and more construction waste is generated, causing environmental pollution; (3) the construction process is noisy; (4) the support occupies a large area, which affects the construction
[0003] The prefabricated steel support has the following problems: (1) The safety reserve is small, and the bearing capacity of the steel support is limited. When the water and soil pressure from the outside of the foundation pit to the inside of the foundation pit unexpectedly increases, it may cause serious consequences for the instability of the steel structure; (2) ) The support occupies a large area, which affects the construction; (3) The steel consumption of the fabricated steel support is large
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 2
[0038] Embodiment 2: In this embodiment, the crown beam is a long rectangle, the long side of the crown beam is twice the short side, and there are two annular support frames 2 in the middle of the crown beam; in the specific implementation process, the long side of the crown beam is also It can be an integer multiple of more than twice the short side, and the number of annular support frames 2 is consistent with the multiple between the long side and the short side.
[0039] In addition to the triangular area formed between the annular support frame 2 and the four corners of the crown beam, the arch support frame 3 is respectively provided, and the triangular area formed between the two annular support frames 2 and the long sides of the crown beam is also provided with an arch support frame. 3. The two adjacent annular support frames and the annular support frame and the arch support frame are connected by a pair of first connectors 41, and the two first connectors connected i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a detachable concrete-filled steel tube foundation pit supporting system which comprises a rectangular top beam. At least one annular supporting frame is arranged in the middle of the top beam; an arch-shaped supporting frame is arranged in a triangular area formed between the annular supporting frame and the top beam; the annular supporting frame and the arch-shaped supporting frame are both formed by detachably connecting arc-shaped steel tube concrete members; and every two of the annular supporting frame, the top beam and the arch-shaped supporting frame are detachably connected together. The detachable concrete-filled steel tube foundation pit supporting system provided by the invention has the advantages of higher compressive bearing capacity, high overall rigidity, small deformation of a foundation pit, large residual operation space of the foundation pit, capability of realizing standard production of components, high industrialization degree, convenience in mounting and dismounting, high construction speed, reusability, good economical efficiency, low construction noise, environmental friendliness and energy conservation.
Description
technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a detachable steel pipe concrete foundation pit support system. Background technique [0002] At present, reinforced concrete internal support and fabricated steel support are more commonly used foundation pit support methods in foundation pit support. The reinforced concrete inner support has the following problems: (1) Concrete needs to be poured on site, and the foundation pit can only be excavated after the concrete reaches a certain strength, which has a long construction period and affects the progress of the project; Reinforced concrete internal support has high demolition costs, and produces more construction waste, causing environmental pollution; (3) the construction process is noisy; (4) the support occupies a large area, which affects construction. [0003] The prefabricated steel support has the following problems: (1) The safety reserve is small, and...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王志滨戴鸿伟张挺王巧艺
Owner FUZHOU UNIV