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The Numerical Simulation and Dynamic Monitoring about Strain Field of Deep Excavation

Author: YaoJianWen
Tutor: Chen
School: Suzhou Institute of Technology
Course: Structural Engineering
Keywords: Deep foundation Supporting structure Numerical Simulation Dynamic Monitoring Deformation law
CLC: TU753.1
Type: Master's thesis
Year: 2009
Downloads: 123
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Abstract


The deformation characteristics of deep foundation analysis and stability evaluation is an important issue in geotechnical engineering , and on-site dynamic monitoring the pit information construction has become an important part , to carry out numerical simulation of deep foundation pit support and dynamic the monitoring study has important value in engineering applications . In this paper, the concrete practice of deep excavation , using a combination of methods of numerical simulation and on-site monitoring , deformation laws of deep excavation of soil and supporting structure , and achieved certain results : ( 1 ) using ABAQUS to simulate the whole process of excavation , describes the pit different stage of excavation soil and supporting structure deformation law of the deformation . (2 ) the completion of the on-site monitoring of a deep foundation , the monitoring content variation , gray prediction model GM (1,1) on the the pit top surface of the horizontal displacement predicted , pointed out that the dynamic monitoring of the protection of playing an important role in the construction of security . (3) the simulated and observed data the comparative analysis of simulation results larger than the on-site monitoring results by 10% to 35% , the deformation law is basically the same , ABAQUS can be well simulated excavation pit excavation numerical simulation for the optimization of the design of the supporting structure to provide reliable scientific basis and engineering practice have a guiding role .

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