Abstract
The foundation pit engineering is a work with large amount of use and high difficulty coefficient. It is necessary to ensure the deformation of soil in the control range and the safety of the whole structure of the foundation pit. In this paper, the foundation pit support project in Shijiazhuang City, Hebei Province is taken as the research object, and the numerical analysis method is used to simulate the pile-anchor support in the First Section of the fourth section of the foundation pit. In this paper, the horizontal displacement value of deep foundation pit and the settlement value of the top edge of foundation pit are analyzed, It provides reference for future projects.
Highlights
With the appearance of a large number of high-buildings in cities, and the environmenl impact caused by the deformation of the retaining structure of foundation pit becomes more and more serious[1,2,3]
In order to carry out the reasonable simulation calculation, a cross section along the boundary line of the foundation pit is taken as the research object to carry out the two-dimensional calculation
Due to the gradual excavation of the foundation pit, within a certain range of the top of the slope at the edge of the foundation pit, the tensile stress concentration area will appear in the soil due to the adjustment of its own stress state, and the tensile strength is relatively low due to the properties of the soil itself, it is easy for the tensile fracture to occur and form the post-slope tension zone
Summary
With the appearance of a large number of high-buildings in cities, and the environmenl impact caused by the deformation of the retaining structure of foundation pit becomes more and more serious[1,2,3]. In view of how to accurately predict and control the deformation of the retaining pile, some scholars have done the relevant numerical analysis: Fang shijun[4] combining the real deformation monitoring data and numerical simulation method of foundation pit row piles, the deformation laws of the pile body in different construction stages are summarized; Liu Jie[5] established the finite element model and compared the results of the deformation simulation with the actual deformation monitoring results. Based on a deep foundation pit project in Shijiazhuang, this paper simulates the stability and deformation of the pile-anchor support structure. It can provide reference for similar projects in the future. The excavation depth is 10m, the length is 120m, the width is 77m.The foundation pit belongs to the First Class Foundation pit, the corresponding safety structure importance coefficient is 1.1
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
