Environment Impact Analysis of Shield Passing Alongside Bridge Pile Platform Using Three Dimensional Numerical Simulation

3rd Annual International Workshop on Materials Science and Engineering

Shang, Yanliang^1,2 ; Shi, Wenjun^2 ; Han, Tongyin^3 ; Qin, Zhichao^2 ; Du, Shouji^1

Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai

200240, China^1

School of Civil Engineering Shijiazhuang, Tie Dao University, Shijiazhuang

050043, China^2

Langfang Teachers University, Langfang

065000, China^3

关键词: Design strength;    Environment impact;    Foundation modeling;    Internal forces;    Maximum surface settlements;    Shield construction;    Three-dimensional numerical simulations;    Urban subway tunnel;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/250/1/012031/pdf
DOI  :  10.1088/1757-899X/250/1/012031

来源: IOP

【 摘 要 】

The shield method has many advantages in the construction of urban subway, and has become the preferred method for the construction of urban subway tunnel. Taking Shijiazhuang metro line 3 (administrative center station - garden park station interval) Passing alongside bridge as the engineering background, double shield crossing the bridge pile foundation model was set up. The deformation and internal force of the pile foundation during the construction of the shield were analyzed. Pile stress caused by shield construction increases, but the maximum stress is less than the design strength; the maximum surface settlement caused by the construction of 10.2 mm, the results meet the requirements of construction.