Comparison of dewatering schemes for foundation pits under complex hydrogeological conditions

4th International Conference on Water Resource and Environment

地球科学;生态环境科学

Wu, H.M.^1 ; Zhou, J.F.^1 ; Yao, Z.D.^2

Zhejiang University of Water Resources and Electric Power, China^1

Hangzhou Jianggan District City Construction Development Co. Ltd., China^2

关键词: Foundation pits;    Hainan Province;    Hydrogeological;    Hydrogeological conditions;    Silty sands;    Urban utility;    Utility tunnels;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/191/1/012138/pdf
DOI  :  10.1088/1755-1315/191/1/012138

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

With the advancement of urbanization in China, more and more urban utility tunnel are being constructed in complex geological and hydrogeological environments. Dewatering during the construction of tunnel pits is often a big technical problem. Taking the construction of a utility tunnel in Sanya, Hainan Province, China as an example, this paper compares several technical methods of coral stratum and silty sand stratum dewatering in this area. The characteristics of the methods and their advantages and disadvantages were analyzed. One of these methods has been implemented by engineering dewatering, and the effect is remarkable.