Design And Monitoring Analysis Of Foundation Pit Supporting About The First Project Of Qingdao Huarun Center

With our country social development and the speeding up of urbanization, theheavy construction tasks is put forward in the national12th five-year plan, the scaleof urban construction is increasing, urban development is limited by ground space. Inorder to increase the city space utilization, exploitation and utilization of undergroundspace and the scale of the high-rise building construction is more and more big, thecontradiction is more and more prominent between increase of degree of foundationpit excavation and adverse factors of excavation. So the research of foundation pitengineering design optimization become the focus of the current constructionengineering research topic.Theoretical research lags behind engineering practice in the field of deepfoundation pit engineering. This thesis choose Qingdao Huarun Center issue of deepfoundation pit engineering project, in view of the foundation pit engineering design,construction and monitoring work link carries on the summary analysis. First of all,according to the engineering survey, geological conditions and surroundingenvironment, compare multiple support form and then chose the compound soilnailing system. Section supporting design for the composite soil nailing supportsystem, and check the stability. Make a brief description of the excavation works andorganizational management，put forward the monitoring program of this excavation.Final, analyze the monitoring results, put actual deformation results back to the designdepartment，further optimize the design parameters for future similar projects as aguide.By designcheck value compared with the actual deformation analysis andprocessing，guide and improve the contingency plans for excavation deformed duringthe construction process，finally discourse that at this stage in the field of engineering practice composite soil nailing system enjoys a great advantage in deep foundationengineering applications. Various forms of support combined application become thefuture development trend of deep foundation design, the successful application of thisproject for the future support in the form of diverse applications to provide guidanceand reference. Summary of the engineering design, construction and monitoring allaspects of the work, make reasonable suggestions of the future of the city deepfoundation construction, it has a very good practical and theoretical significance.