Open AccessInfluence of Shield Tail Clearance on Surface Settlement during Shield Construction in Soft Soil Area
Author(s) -
Ping Li,
Qiming Lu,
Xiaopeng Chen,
Xiaoyi Jiang,
Jinling Liu,
Binbin Xie
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/719/3/032052
Subject(s) - shield , settlement (finance) , finite element method , groundwater related subsidence , geotechnical engineering , geology , subsidence , stiffness , displacement (psychology) , structural engineering , engineering , petrology , computer science , geomorphology , structural basin , psychology , world wide web , payment , psychotherapist
The shield construction process of shield tail gap caused by formation damage, the formation damage caused by the settlement is as long as the part of tunnel subsidence analysis, therefore in the finite element software analysis of shield construction settlement value, the shield tail clearance simulation is an important link in the entire model, this article analyzes three common finite element simulation method, shield tail clearance displacement convergence method based on non-uniform distribution and actual matches are higher than layer such as generation method and stiffness discount subtraction. Finally, the displacement convergence method is used to simulate the grouting effect of shield tail on the surface settlement.