Measures on the Emergency Repairs on Bao-Cheng Railway Tunnel 109#

摘要

This paper, based on the Emergency Repairs at Bao-Cheng Railway Tunnel 109#, presents the studies and analysis of major concepts, technical proposals and key problems encountered in conducting emergency works to set the target of "resuming traffic within a short period of time and maintaining safety on a long run" by phased performances, which can be taken as references to guide emergency works for railway projects under similar natural disasters.