【摘要】 通过对永登—古浪高速公路乌鞘岭隧道工程场地的地形地貌、地层岩性、水文地质、构造地质、地应力、区域及近场地震活动性等方面进行研究,对场地工程地质条件进行了评价。在此基础上,探索性地对隧道工程的进口、洞身主体和出口进行了抗震性能评价,指出了工程场地不良工程地质现象、地震影响及可能触发的地震灾害效应,为长线隧道工程场地的抗震性能评价工作提供了新的方法及思路。更多还原

【Abstract】 The engineering geology conditions of Ushaoling Tunnel in Yongdeng-Gulang Freeway from the topographical feature,hydrological geology conditions,lithologic characteristics of stratum,tectonic geology conditions,ground stress and earthquake activity around the site are studied in the paper.Based on the study,the aseismatic performance of the tunnel mouth and tunnel body were evaluated separately and the bad engineering geology conditions,earthquake and earthquake-caused disaster effect maybe encountered were pointed out,which provided anew method of aseismatic performance evaluation for long-line tunnel site exploringly.更多还原