Soil Nailing Wall In Foundation Pit Engineering

Foundationg pit engineering and underground engineering construction is an ancientand crucial geotechnical engineering, it not only considers strength, stiffness and stabilityof the rock,and also takes into account the joint role that related to soil and the supportingstructure,it relates to engineering geology, hydrogeology, engineering mechanics,structural engineering, soil mechanics and foundation engineering construction andmanagement of a variety of areas, and it is a complex systematic project. With thedevelopment of high-rise buildings, deep foundation pit has been greatly developed. TheFoundation Pit method is also a variety of commonly used methods of soil nail wallsupport, bolting, slope pile retaining underground continuous wall support.Shenzhen peninsula city garden project foundation pit supporting the programdesign process, focusing on the characteristics of the soil nailing wall method, and theproject’s soil nailing wall design method of theoretical analysis and numerical calculation,combined with the actual situation of the project by management is software to calculatethe economy of the two design methods, the safety factor, the lateral displacement of thepit, pit surface subsidence, and the pit bottom of the rebound, the construction side, andconstruction management, were compared. Wang Buyun and the Shenzhen regionbuilding deep foundation pit supporting technical specifications calculation of economicmethod than using the "Building Foundation support technical regulations", the amountof steel was reduced by approximately6%, which can effectively reduce the constructioncost;"Building Foundation support technical regulations calculation factor of safetytends to be conservative safety factor is too large, and cause unnecessary waste ofmaterial under normal circumstances; using soil nailing pit lateral displacement appearsin the pit near the middle of increase gradually increased with depth; pit surfacesubsidence and pit the bottom of the rebound from the support pit distance between;application Wang Buyun of soil nailing wall design method can be widely used.