Environmentally sustainable groundwater control during dewatering with barriers:A case study in Shanghai

作     者：Zhi-Fei Xie Shui-Long Shen Arul Arulrajah Suksun Horpibulsuk 

作者机构：Department of Civil EngineeringSchool of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China Department of Civil and Environmental EngineeringShantou UniversityShantouChina Key Laboratory of Intelligent Manufacturing Technology(Shantou University)Ministry of EducationShantouGuangdong 515063China Department of Civil and Construction EngineeringSwinburne University of TechnologyVictoria 3122Australia School of Civil Engineeringand Center of Excellence in Innovation for Sustainable Infrastructure DevelopmentSuranaree University of TechnologyNakhon Ratchasima 30000Thailand 

出 版 物：《Underground Space》 (地下空间（英文）)

年 卷 期：2021年第6卷第1期

页      面：12-23页

核心收录：

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：This research was funded by the Innovative Research Funding of the Science and Technology Commission of Shanghai Municipality(Grant No.18DZ1201102).This financial support is greatly appreciated 

主　　题：Dewatering Horizontal barrier Diaphragm wall Ground settlement Drawdown Confined water 

摘      要：This paper presents a case study on groundwater control and environmental protection during a deep excavation of the foundation pit for the Liyang Road Station of Metro Line 10 in Shanghai.A three-dimensional finite element simulation model was constructed to quantify the effects of a dewatering process on the environment around the excavation *** understand the decrease in the groundwater level around the foundation pit,the ground settlement and groundwater level were *** the excavation,environmental protection methods were used in the design of the optimal watering system to check its detrimental environmental *** effects of the diaphragm wall and horizontal barrier system were analyzed by varying their insertion depths and the resulting changes in the ground settlement and groundwater level were *** was found that increasing the insertion depth of the diaphragm wall reduced settlement near the excavation site but increased the construction *** diaphragm wall used in combination with a horizontal barrier was found to be effective in arresting the decrease in groundwater level and reducing settlement around the excavation site.