Deformation analysis of adjacent subway station by different parameters of composite support structure in deep foundation pit

2021 ◽  
Author(s):  
Hua Peng
Keyword(s):  
Subway Station ◽  
Deformation Analysis ◽  
Deep Foundation ◽  
Support Structure ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Composite Support

Mechanical Analysis of Enclosure Pile under Different Constraints

2011 ◽  
Vol 90-93 ◽  
pp. 485-489
Author(s):  
Li Guo ◽  
Peng Li He ◽  
Guang Jun Zhang
Keyword(s):  
Mechanical Analysis ◽  
Subway Station ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Retaining Structure ◽  
Cantilever Structure ◽  
Reinforcement Measures

The enclosure pile is extensively used as retaining structure in the foundation pit excavation. And it is always combined with other reinforcement measures. So it is unreasonable to a certain degree that the enclosure pile is analyzed as cantilever structure. Taken the deep foundation pit of a subway station in Hefei for instance, the effect of other reinforcement measures on restrained conditions of enclosure piles in the paper was taken into account. And the behavior of enclosure pile under various restrained conditions was analyzed. Based on that, some helpful suggestions for practical retaining structure of foundation pit were put forward.

Geotechnical Engineering Practice of Multi-Forms of Composite Support of Deep Foundation Pit

2013 ◽  
Vol 838-841 ◽  
pp. 690-696
Author(s):  
Qin He Huang
Keyword(s):  
Geotechnical Engineering ◽  
Engineering Practice ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Double Row ◽  
Deep Foundation Pit ◽  
Composite Support ◽  
Surrounding Environment ◽  
The Cost

A project in Xiamen setting three basement, the surrounding environment is more complex.the depth of the foundation pit is 11.0-16.1m, considering the duration, cost, environment and other factors, different positions of the foundation pit is respectively realized by adoption of double-row piles, pile-anchor retaining, pile-strut bracing structure and other forms of support, excavation practice proved that this composite support effectively support the pit, facilitate the construction, and the cost is relatively low.

Design and Construction of the Support Structure of Deep Foundation Pit for a Cement Plant in SR Vietnam

2011 ◽  
Vol 243-249 ◽  
pp. 6093-6096
Author(s):  
Ding Tang Wang
Keyword(s):  
Deep Foundation ◽  
Support Structure ◽  
Foundation Pit ◽  
Geological Investigation ◽  
Deep Foundation Pit ◽  
Jet Grouting ◽  
Optimizing Design ◽  
Multiple Support ◽  
Made In ◽  
Design And Construction

Combined with a specific foreign-related project and based on the detailed report of the engineering geological investigation, this paper describes the application of the selected support structures of shotcrete-bolt and bored piles with high pressure rotary jet grouting waterproof curtain from aspects of scheme optimizing, design and construction, underground watertable lowering and result monitoring. Satisfactory achievements have been made in cost saving, shortening duration, facilitating construction and environmental protection etc. It demonstrates that two or multiple support systems can be used simultaneously in one foundation pit as support structure.

scholarly journals Impact Analysis of Support Structure of Unsymmetrical Loading Deep Foundation Pit Adjoining Highway

2015 ◽  
Vol 9 (1) ◽  
pp. 463-470
Author(s):  
Donglin Wang ◽  
Lei Wang
Keyword(s):  
Impact Analysis ◽  
Simulation Analysis ◽  
Great Influence ◽  
Horizontal Displacement ◽  
Friction Angle ◽  
Deep Foundation ◽  
Support Structure ◽  
Foundation Pit ◽  
Load Effect ◽  
Deep Foundation Pit

The air shaft deep foundation pit 6 is influenced by subgrade unbalance loading of highway 312, specifically its deep horizontal displacement of supporting piles and subgrade settlement of expressway 312 under unsymmetrical load effect. This paper carries out construction monitoring and numerical simulation analysis and gives a detailed study on the influenced factors of support structure deformation. Calculation results show that subgrade unsymmetrical load has a great influence on deep horizontal deformation of supporting piles. The maximum horizontal displacement at the bias side is about three times more than non-bias side’s; when the distance of subgrade to foundation pit is the same as the depth of excavation, the influence of subgrade on pit can be ignored; as the cohesion and internal friction angle increases, the horizontal displacement of fender piles decreases. However, enlarging the embedded depth of supporting piles has no significant influence on the stability of foundation pit.

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