Micro Steel Pipe Piles in Advance Reinforcement in Some Soil Nailing Wall Engineering

Soil nailing wall is the most widely used method for foundation pit supporting,the economic applicability in many excavations have been proved,but the soil nailing wall also has some disadvantages like large displacement,stiffness and so on.In engineering practice,the micro pile and soil nailing wall can be composed of composite supporting structure to reduce the displacement and improve its overall stability.Through analyzing problems of the Guangzhou some soil-nailed retaining wall in foundation pit engineering,we put forward to increase micro steel tube pile of advance reinforcement measures,and achieved good results,so this article provide a certain basis for the design of similar projects.