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The Application of Miniature Steel Pipe Pile and Vertical Composite Soil Nailing Wall in a Deep Foundation Pit

HU Li-qiang

Abstract

Based on a Beijing deep foundation pit example,this paper introduces the combined use of soil nailing,prestressed anchor and miniature steel pipe piles to form miniature steel pipe pile vertical composite soil nailing wall.Miniature steel pipe piles,as advanced support,can improve soil self-reliance stability,and prestressed anchor can effectively control slope surface displacement.The safety of foundation pit and the periphery environment are guaranteed.It also analyzes the technology tips in design and application,which can provide a reference for the similar projects in the future.

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Key concepts: Soil nailing, Pile, Foundation (evidence), Engineering, Geotechnical engineering, Composite number, Structural engineering, Displacement (psychology)