Deep foundation pit supporting structure and deep foundation pit supporting method
A deep foundation pit support and depth technology, applied in the direction of foundation structure engineering, excavation, sheet pile walls, etc., can solve problems such as instability, loss, and destruction of the whole, to improve integrity and self-stability, and improve mechanical properties , the effect of reducing the disturbance
Pending Publication Date: 2018-06-26
CHINA MCC5 GROUP CORP
View PDF6 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In the foundation pit construction, if the foundation pit support method is improper, the stress and strength of the soil body will decrease sharply, causing loca
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 Construction
[0029] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0030] A deep foundation pit supporting method, it comprises the steps:
[0031] S1: Excavate the earth that needs soil nail support in layers and sections. The excavation depth of each layer is 1m-2m, and the excavation length of each section is 10m-18m. It is strictly forbidden to over-excavate or disturb the slope soil. 100mm should be reserved for the slope to be manually cleaned to make the slope level and conform to the slope design gradient;
[0032] S2: Mark and number the soil nail holes to be drilled on the slope. The vertical spacing of the holes is 1.5m and the horizontal spacing is 1.2m. 100mm, the depth is 8m in the first row, 7m in the second row, 6m in the third row and 6m in the fourth row, and the vertical soil nail 3.1 s...
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 deep foundation pit supporting structure and a deep foundation pit supporting method. The deep foundation pit supporting structure comprises soil nails, drain pipes and reinforcing steel bars. The soil nails comprise vertical soil nails and inclined soil nails; the vertical soil nails are vertically inserted into a soil layer; a space between each two adjacent vertical soil nails is 5m; rotary holes are formed in a side slope; a vertical space between each two adjacent rotary hole locations is 1.5m, a horizontal space between each two adjacent rotary hole locations is1.2m, and the inclined soil nails are arranged in the holes; one reinforcing steel bar with the diameter phi being 20, the depth being 2m and the protruded length being 100mm is driven between each two adjacent soil nails; the side slope is provided with a supporting surface layer; the horizontal drain pipes with the length being 400mm to 800mm and the diameter phi being larger than or equal to 35mm are inserted into the back part of the supporting surface layer of the soil nails; one end of each drain pipe stretches out of the supporting surface layer of the soil nails for 20mm to 50mm; anda space between each two adjacent drain pipes is 2m. According to the deep foundation pit supporting structure and the deep foundation pit supporting method provided by the invention, by combining a characteristic of a deep foundation pit excavation, the disturbance on the soil body is greatly reduced; and through technologies such as soil nail installation and grouting, a mechanical performance of the side slope soil body is improved, the integrity and the self stability ability of the side slope soil body are improved, and the side slope is more stable.
Description
technical field [0001] The invention relates to foundation pit excavation construction, in particular to a deep foundation pit supporting structure and method. Background technique [0002] In the foundation pit construction, if the foundation pit support method is improper, the stress and strength of the soil body will decrease sharply, causing local damage or overall instability, slippage, support structure tilting, and collapse of the foundation pit slope, resulting in serious engineering accidents. and great loss. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a deep foundation pit support structure and method, combined with the characteristics of deep foundation pit excavation, using the deep foundation pit support method, greatly reducing the impact on the soil Disturbance, through the installation of soil nails, grouting and other technologies, improve the mechanical properties of...
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 IPC IPC(8): E02D17/04E02D5/74
CPCE02D5/74E02D17/04
Inventor 陈昌俊
Owner CHINA MCC5 GROUP CORP
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap