Open AccessStudy on deformation law of double-line shield tunnel obliquely crossing underneath existing municipal tunnel
Author(s) -
Xingxin Qi,
Wenge Qiu,
Ganggang Gao,
Zhenghao Zhou,
Zigang Deng,
Hailin Zhao,
Shifu Wan,
Qiming Huang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/741/1/012025
Subject(s) - shield , excavation , lateral earth pressure , torsion (gastropod) , deformation (meteorology) , displacement (psychology) , geotechnical engineering , line (geometry) , vertical displacement , position (finance) , geology , structural engineering , engineering , law , geometry , political science , mathematics , petrology , medicine , psychology , oceanography , surgery , psychotherapist , finance , economics
This paper mainly relies on the project of Hangzhou Metro Line 5 obliquely crossing underneath Zijingang Road Tunnel. The paper analyzes the influence of the shield position on the vertical displacement and torsion of the existing tunnel. Grouting pressure and stratum reinforcement conditions are also considered. And find the law of the influence of various construction technical parameters on deformation under different excavation stages. Then give corresponding advice for the project and provide guidance and reference for similar projects in the future.