Design And Practice Of Foundation Support Of Leying Plaza Of Nanchang

Foundation engineering is an important part of building construction and has a major impact on the security and economic whole building.In this paper,Leying plaza of Nanchang excavation engineering background of this thesis.The mainly following aspects to research:(1)Smmarizing current research of excavation engineering and according to the geological conditions,the ambient conditions,the applicable conditions and conducting a preliminary selection of the foundation program.(2)Using AHP to Le Ying square excavation was preferred support programs.In the normalization of conditions to meet,obtain the most suitable solution is the south western part of the support D1,ie select HCMW engineering methods,and the excavation program on each side selection.(3)Analytic Hierarchy Process in the Le Ying plaza Nanchang support ways preferred research work on the bearing capacity of the foundation of the excavation,the settlement were checking separately to give stability factor and each side and overturning stability coefficient and limited use element software impact on the west side of the pit(highest building)and to analysis the deep excavation preferred feasibility from the south side of the pit(the nearest building).(4)In gray system theory and its derivative model GM(1,1)on top of the hill displacement and subsidence prediction analysis,which can greatly simplify the excavation so,and can get better forecasting results,having in engineering practice Guiding significance.