A Supporting Method for Multi-Arch Foundation Pit Used in Long and Deep Foundation Pit
A foundation pit support and deep foundation pit technology, which is applied in excavation, foundation structure engineering, construction, etc., can solve the problems of difficulty in foundation pit construction, reduce support removal and recovery engineering, optimize stress conditions, and ensure The effect of stability
Active Publication Date: 2021-11-02
NANTONG UNIVERSITY
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] Purpose of the invention: the purpose of the present invention is exactly to provide a kind of continuous arch type support method that is used for elongated deep foundation pit in order to overcome the defective that above-mentioned prior art exists, to make full use of arch structure space effect and arch effect, Solve the technical problems of difficult foundation pit construction due to dense support spacing and optimize the internal force of the support structure
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
[0030] like Figure 1-3 As shown, a conventional foundation pit support method for a long-strip-shaped deep foundation pit is, including a long-side base pit sidewall and a short side base pit side wall.
[0031] The long-side base pit sidewall is composed of a plurality of long-sided base pit side wall arch and a plurality of long-side base pit side wall line segment support piles 2 to each other. The center of the arcuate arc of the long-side base pit side wall arch arc curve section is in the foundation pit in the foundation pit; in order to control the intensity of the soil in the foundation pit, the long side base pit sidewall The vector ratio (h / L1) of the arc curve of the arccal curve of the arccal curve section is controlled within 1 / 5.
[0032] The short-sided base pit sidewalls are arranged in a continuous linear arrangement distribution of the short side base pit sidewall.
[0033] On the long-side base pit side wall arch arc curve segment support pile 1, the long side...
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 discloses a continuous arch foundation pit support method for long-strip deep foundation pit. For supporting piles, the arc-shaped arc curve and the straight line are spaced apart. The center of the arc-shaped arc is in the foundation pit. The side walls of the short-side foundation pit are provided with supporting piles that are continuously arranged in a straight line. The top of the supporting pile and the pile body are Set up surrounding purlins, set up one-way horizontal support at the arc arches of the long side of the foundation pit, and set gusset support on the side wall of the short side of the foundation pit, which together with the surrounding purlins form an internal support system, and the A column is set in the middle to form a continuous and closed deep foundation pit support structure system. The multi-arch type supporting method of the present invention makes full use of the characteristics of the reasonable force of the circular arch, which is beneficial to the force of the supporting pile and the surrounding purlin, and also increases the span between the long-side foundation pit side walls and the supporting supports. Reduce the coverage of foundation pit support area and greatly reduce the difficulty of underground engineering construction.
Description
Technical field [0001] The present invention relates to the field of geotechnical technology, and more particularly to an archive support for a long base pit. For the depth of the foundation pit excavation, the underground and underground integrated gallery, underground integrated gallery, as well as underground channels, and underground channels, and underground channels. It is more apparent. Background technique [0002] With the increasing steps of urbanization process, in the intensive city center of land resources, underground space as the main carrier of urban infrastructure, the status of urban development is more important, including rail transit, integrated gallery and other underground Traffic municipal facilities are dominated. Thus, a large number of long-shaped deep foundation pit projects have emerged. Usually in the soft soil region of deep underground water level and peripheral environment, the support structure of the long deep foundation pit project tends to use...
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 Patents(China)
IPC IPC(8): E02D17/08
CPCE02D17/08E02D17/083E02D2300/002E02D2300/0029
Inventor 吴昌将俞隽曹小建孙召花张邵峰
Owner NANTONG UNIVERSITY