Cause Analysis and Treatment Measure of Roof Fall and Collapse of a Highway Tunnel in Mountainous Area
Based on the research status of expressway tunnel collapse in mountainous areas,this paper analyz-es the causes of tunnel collapse from many aspects,and focuses on the application of tunnel top surface treatment and in-tunnel reinforcement method.This method has the advantages of convenient operation,economy and safety for tunnel collapse with complex geological conditions of surrounding rock and thin overburden on the top of tunnel,which can provide reference for similar tunnel collapse treatment.
tunnel roof fall and collapsetunnel top sur-face treatmentin-tunnel reinforcement methodhighway tunnelcollapse treatment
NETL
NSTL
万方数据
