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Analysis of Settlement of Ground Surface Induced by Dewatering in Foundation Pit

Author: LiZhiPing
Tutor: PengZhenBin
School: Central South University
Course: Geological Engineering
Keywords: Pit dewatering Land subsidence SETTLEMENT MECHANISM Effective Stress Analysis Settlement calculation
CLC: TU753
Type: Master's thesis
Year: 2008
Downloads: 840
Quote: 9
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Abstract


With the rapid development of China's national economy and urban construction , aerial and underground space resources is more and more to be exploited and utilized , especially in deep excavation pit almost all related to precipitation problem , Pit Dewatering Ground Settlement around the impact has caused widespread concern , but there is still a lack of reasonable and effective computational method . Firstly, the foundation pit dewatering technology development as well as the precipitation caused by ground subsidence Research made ??a more detailed discussion , and summarize the recent foundation pit dewatering environmental impact study on the surrounding hot . Secondly, the adverse effects of groundwater in the pit project , the method and its application conditions and engineering foundation pit dewatering , foundation pit dewatering pit project , the foundation pit dewatering on the surrounding environment summarized . Then analyzed the influencing factors of precipitation in the role of the soil under the deformation mechanism and soil subsidence , summed up the basic theory of ground subsidence caused by the existing foundation pit dewatering , groundwater head pressure changes caused by the precipitation , aquifer through mathematical analysis particle migration of the groundwater equations of motion of the aquifer more general sense of compression and expansion of the water body , based on the same total stress and total stress , effective stress in the foundation pit dewatering effect analysis . Calculation of ground subsidence caused by pit dewatering , this article summarize engineering foundation pit dewatering caused ground settlement calculation method , the analysis of the problems of commonly used engineering calculation method based on the theory of elasticity land subsidence of this improved and the use of these two approaches to the calculation of the actual engineering validation settlement calculation method proposed in the paper is more accurate and effective , and also put forward some measures to reduce the effects of precipitation on the surrounding environment . Finally, a brief discussion of the direction for further work .

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