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Study on the Buildings Deformation Around Expansive Soil Foundation Pit

Author: LvChengLong
Tutor: LuoHanBin
School: Huazhong University of Science and Technology
Course: Architecture and Civil Engineering
Keywords: Expansive soils Pit Excavation Differential settlement Building Deformation Elman neural network model
CLC: TU443
Type: Master's thesis
Year: 2011
Downloads: 27
Quote: 0
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Abstract


To urban transport and land resources in recent years , with the accelerated process of urbanization in China , a huge challenge , the primary means to solve the effective use of urban space , to meet the increasingly severe traffic demand subway construction , subway construction produces a large number of excavation, pit often in dense urban buildings , narrow construction site , causing more and more problems in the foundation pit engineering design, construction , greatly influenced the foundation pit construction safety and surrounding buildings material protection , especially the poor soil quality problem brings great risk to the safety of the works . Wuhan old clay as an expansive soil swelling and shrinkage deformation of it as a bad soil characteristics . The various characteristics of the soil expansion at home and abroad and its theories and methods of soil improvement with a more in-depth study , but the study was small deformation of expansive soil deep foundation pit adjacent buildings . Wuhan old clay engineering properties and deformation mechanism and pit excavation comprehensive analysis of the impact on the surrounding environment . In addition , the settlement monitoring data to establish the statistical analysis model on the possibility to use Elman neural network prediction model to handle the feedback monitoring data . On this basis , by the Wuhan Optical Valley Plaza Station of Metro Line deep excavation of this specific project examples introduced in Wuhan unique expansion characteristics of the old clay geological conditions , EXCAVATION caused the surrounding buildings ground with varying degrees of damage and cracks , and find out the purpose of buildings settlement deformation impact factors , make the appropriate construction technology and management measures , so as to achieve the control settlement and protection of buildings affected buildings . Finally, through the control of the engineering practice case analysis and summary of the measures for future similar projects geological conditions and construction conditions in Metro construction safety and building protection provide certain reference .

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Various types of soil and foundation > Expansive soil and foundation
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