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Study on Group of Wells Dewatering on Silt Foundation

Author: WangZongKui
Tutor: BaiBing
School: Beijing Jiaotong University
Course: Architecture and Civil Engineering
Keywords: Silt Group wells Groundwater level Vacuum Dewatering
CLC: TU753
Type: Master's thesis
Year: 2011
Downloads: 67
Quote: 0
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Abstract


With the large number of high-rise buildings and municipal engineering construction , the use of underground space is more and more widely , also will produce the same time a large number of excavation , foundation pit dewatering problems has become a major problem in the project . For less permeable aquitard saturated water and aquifer the interface residual water , using a conventional precipitation methods difficult dewatering caused a great impact , which will pit construction safety engineering and construction schedule . Less permeable strata vacuum well point dewatering methods , vacuum technology and well dewatering technology combined with organic , more effective and economic solution aquitard drainage problems . In this paper, on the basis of the vacuum principle vacuum precipitation seepage field characteristics and mechanism of precipitation . Through the silt on the group of well - site test methods , to further explore the characteristics of groundwater seepage in the vacuum dewatering process , such as the groundwater level changes over time , the groundwater level changes in the process as well as the water level in the horizontal and vertical directions of the recovery . And by comparison of several precipitation scheme of well point depth , spacing and layout factors affect of group wells precipitation effect analysis , provides a select group of well parameters for better reference . This article by soil samples before and after the on-site pumping the Soil test test vacuum precipitation method silt Soil physical properties . Based on test analysis , this paper also discusses the the group well interference precipitation calculation method and the formula . This article describes a method and finite element method of the \

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CLC: > Industrial Technology > Building Science > Construction > The project and the type of work > Foundation engineering
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