Ground settlement during tunneling in groundwater drawdown environment-Influencing factors

作     者：Chungsik Yoo 

作者机构：School of CivilArchitectural Engineering and Landscape ArchitectureSungkyunkwan University2066 Seoboo RoJan-An GuSuwonKyong-Gi Do 16419Republic of Korea 

出 版 物：《Underground Space》 (地下空间（英文）)

年 卷 期：2016年第1卷第1期

页      面：20-29页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：This work was supported by Grant No.2014004636 from the Basic Research Program of the Korea Science&Engineering Foundation as well as Grant No.13CCTI-T01 from the Ministry of Land Transport and Maritime Affairs Korea.The financial support is gratefully acknowledged 

主　　题：Conventional tunneling Ground settlement Groundwater Finite element method Stress-pore pressure coupled analysis 

摘      要：In this paper,the results of a parametric study on groundwater drawdown-induced surface settlement during tunneling in waterbearing ground are presented.A calibrated stress–pore pressure coupled finite element model was adopted for the parametric *** results were analyzed to establish the relationships between key design issues,such as the ground surface settlement and groundwater drawdown,and influencing *** artificial neural network(ANN)-based sensitivity analysis was performed to obtain insight into the relative importance of the influencing *** results indicated that the primary influencing factors on the settlement development are the thickness and stiffness of the soil layer within the drawdown zone and the lining permeability,while the initial void ratio and the permeability of the soil layer were considered secondary influencing *** implications and findings of the study are discussed.