Study On Supporting Design And Construction Technology For Deep Foundation Pits

With the continuous development of the underground parking lot, underground hospitals, underground shopping malls, subway, high-rise buildings and other projects, embedded depth of foundation pit is more and more big, the stability of the foundation pit slope gradually become a problem can not be ignored the supporting with the plethora of all kinds of deep foundation pit engineering. All kinds of deep excavation retaining in large numbers. Although the structure of deep foundation pit excavation is not a permanent structure, the investment is too big easy cause waste, but supporting structure is not unstale would cause engineering accident. In order to ensure the stability, building foundation must meet the requirements of embedded solid underground depth. So no matter support the pit or construction scheme will be facing challenges breadth and depth. Research on deep excavation design and construction scheme also has important scientific significance and application value.Paper through HuaiTe Trade City phase Ⅱ surrounding environment excavation, excavation depth, the water table level, excavation sidewalls security, investigation and analysis of slope soil conditions, determine foundation pit supporting scheme for soil nailing support and anchor add multi-row piles? then to anchor bracing for the support scheme design parameter selection and supporting structure stability checking. In order to guarantee the foundation pit engineering smoothly and foundation pit, made the reasonable constructi on scheme, and carries on the management of foundation pit supporting constructi on process monitoring method, using the constructi on site civilized constructi on measures, attention and quality guarantee system. Ensure the constructi on of deep foundation pit supporting engineering, could provide the reference for the similar deep foundation pit support construction.