2005•Chinese journal of rock mechanics and engineeringRequires access

ANALYSIS OF CONSTRUCTION EFFECTS OF CHANGLIANGSHAN TUNNEL DURING EXCAVATION AND SUPPORTING IN HORIZONTAL SOFT SURROUNDING ROCK MASS

Bin Du

Abstract

In light of the construction difficulty during building a long tunnel in soft rock mass,the 3D numerical simulation is used to analyze the construction schedule of the Changliangshan tunnel. According to the numerical simulation results,the characteristics of rock stress distribution and rock deformation becomes explicit in the case of short excavation footage. Consequently,it is reasonable to take above-mentioned construction scheme to excavate Changliangshan tunnel.

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Key concepts: Excavation, Rock mass classification, Geotechnical engineering, Tunnel construction, Deformation (meteorology), Geology, Computer simulation, Schedule