Design on soil-nailing wall Supporting of Foundation Pit in Bao Tou

Abstract

According to the surrounding environment condition, the rock engineering site condition and the excavation depth, soil-nailing wall as its main form combining with the practical engineering case.the paper introduces the characteristics of the engineering and design soil-nailing wall excavation and check anti-bump and anti-overturning.to meets project requirements. Soil nailing wall retaining structure are widely used in soil nailing construction because of simple construction, high construction efficiency, flexible, light structure, low engineering cost. For the calculation of soil nail, the typical specification method is the construction of foundation pit supporting technology regulation method (1) and the regulations of technology of soil nailing supporting of foundation pit (2) ,but the calculation method is not the same .There are some research methods calculate soil nail force and displacement (3-4) .Finite element numerical analysis is also useful, but it is more complex and inconvenience promotion in terms of engineering practicability. This paper uses the construction of foundation pit supporting technology (1) to meet the engineering requirements. It provide a reference for similar project.