Research On Deformation And Technology Control Of Surrounding Of Deep Foundation Pit

Deformation law and control plan of the environment caused by deep pit excavation is an important subject in the process of urban development.This paper takes the topic typical geological environment of Jinan, submountain alluvial plain accumulativeformation,as the main research background,we adopt the combination method of theoretical analysis and numerical simulation,and take deep research on deformation law and control plan of the environment considering the deformation factors,formula deduce,earth surface subsidence law and comparation of simulation value, calculation value and measured values,four main contents are as follows:(1) analyze the factors that influence deformation of the surrounding buildings,clear the influence degree of each factor and rank the factors(2)analyze the deformation law of underground pipeline and surrounding buildings,get the safe distance between the he foundation pit and surrounding buildings in three geological environment of Jinan,which can instruct the pit location(3)deduce the formula and curve of surface subsidence in accordance with stratigraphic loss method(4)get the fitting formula of the biggest settlement of surrounding buildings,which can objectively reflect the deformation law by comparing simulation results and measured results; surface subsidence simulation value, calculation value, compares the measured three, the results indicate that The surface subsidence formula is reasonable improved by comparing simulation value, calculation value and measured values,which can provide theoretical basis and technical support for the construction..Aboved research basically illuminates the law of surrounding environment deformation and ground settlement influenced by the pit excavation,which can ensure the safety of deep excavation construction and operation.