The Research And Application Of Deep Foundation Pit Supporting Scheme Optimization For Bishuiwan Project

In the construction of deep foundation pit supporting field,mutual superposition and overlapping of the project,the main research achievements in safety,applicability,economy,durability and the construction technology,engineering environment,construction period has a strong relevance,therefore,in the field of research on support of deep foundation pit,how to choose more suitable for the actual supporting scheme,to meet the engineering requirements,it has become a major topic of research.Firstly,based on domestic and international large foundation pit engineering cases,the foundation pit supporting basic theoretical premise,put forward our country commonly used form of foundation pit,the supporting form of advantages and disadvantages and applicable conditions are described in detail;then in the deep foundation pit supporting scheme when the choice,divided into primary and final selection of two stages,and also briefly introduced the principle of choice in each stage;as the research methods of the new era,the research theory and research methods of numerical simulation,it has become an important research means can not replace the current and future period of time,this paper is to use the this method is widely used in the final stage of the election plan,and to select and set parameters,the numerical simulation results,the picture program form,the support scheme to carry out a detailed analysis and research In addition,according to the arbitrariness attribute of foundation pit support scheme selection,a variety of program model calculation is carried out at the stage of parameter selection and setting,so as to determine the final optimization plan.This paper takes the No.3 building project of Bishuiwan Project as the actual engineering case,the engineering foundation pit supporting scheme is introduced in detail,based on the actual geological conditions and excavation safety grade etc,put forward the primary support scheme,then based on the analysis of numerical simulation and quantitative,finally optimized for gempo project the actual engineering environment supporting scheme;through the observation and analysis of deformation monitoring results,verify the supporting scheme of scientific and reasonable;finally,according to the foundation pit safety problems,establish contingency plans,and briefly introduces the engineering practice,the expectation of this research,can provide reference for the selection of other deep supporting scheme.