Paper Title:

Dewatering Efficiency Comparison between Vacuum Tube Well and Normal Tube Well in Silty Clay Layer

Periodical Applied Mechanics and Materials (Volumes 170 - 173)
Main Theme Progress in Civil Engineering
Edited by Mingjin Chu, Xiangran Li, Jingzhou Lu, Xingmin Hou and Xiaogang Wang
Pages 41-45
DOI 10.4028/www.scientific.net/AMM.170-173.41
Citation Zhi Guang Li et al., 2012, Applied Mechanics and Materials, 170-173, 41
Online since May, 2012
Authors Zhi Guang Li, Jian Ma, Yong Jian Cao, Bai Qing Xu
Keywords Drawdown, Land Subsidence, Vacuum Tube Well, Water Output
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Abstract

Vacuum Tube Well Dewatering (VTWD) is one of high efficiency methods to vacuum dewatering in Beijing district in recent years. Water output, surrounding drawdown, and land settlement of vacuum and normal tube well respectively were measured during the process of engineering dewatering at three sites in Beijing subway engineering. The results showed that the water output by VTWD was 1.6 to 2 times than that by Normal Tube Well Dewatering (NTWD) while the land settlement was twice compared to NTWD. It is suggested to consider the carrying capacity of surrounding environment when using VTWD.