摘要
AN id=EnChDivSummary name="EnDivSummary">For surrounding rock in loess tunnel,the engineering geological exploration and outdoor and indoor tests can help realize its stability.Taking the surrounding rock of loess tunnel in Yao River Diversion Project for example,this paper analyzes its physical and mechanical properties,concludes the factors affecting the stability,and discusses the characteristic and principle of deformation,which can guide the construction.