2008•Shanxi ArchitectureRequires access

The excess under excavation control of tunnel drill-andblast excavation method

LI Tong-qin

Abstract

The excess under excavation reasons of tunnel drill-and-blast excavation were illustrated.The influencing of tunnel drill-andblast excavation on the tunnel construction cost and construction procedure were analyzed,the principal methods to control excess under excavation were proposed.It pointed that the last efficiency could be obtained only make construction technology management,construction field management and construction resources disposal on the controllable situation.

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Key concepts: Excavation, Drill, Engineering, Tunnel construction, Principal (computer security), Geotechnical engineering, Mining engineering, Mechanical engineering