Open AccessAnalysis of Deformation of Ground and Connected Aisle with the Influence of Sump-Pit Excavation in the Aisle
Author(s) -
Luming Yang,
Jianhua Huang,
Yunchen Wang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/2/022016
Subject(s) - aisle , sump (aquarium) , excavation , geotechnical engineering , engineering , settlement (finance) , geology , mining engineering , structural engineering , world wide web , computer science , payment , waste management
The excavation of connected aisle is one of the key risks for the construction of subway in the coastal soft clay layer. The excavation of sump-pit will adversely affect the deformation of the ground and connected aisle, increase the risk of the project. The finite element software ABAQUS is used to carry out numerical simulation research on the excavation of sump-pit. The influence of deformation of ground and connected aisle were analyzed by the method of changing the position of sump-pit excavation. The result showed that: the most significant influence of sump-pit excavation was crown settlement, the second important influence was ground settlement, and the influence of headroom convergence was slight. The maximum ground settlement increased by 7% and the maximum crown settlement by 13% if the sump-pit was built in the middle of connected aisle.