基于隧道超前地质探测的围岩分级研究  

作　　者：龙贵云 郑亮 

机构地区：[1]中国水利水电第四工程局有限公司,西宁810007

出　　处：《科技创新与应用》2024年第6期124-127,共4页Technology Innovation and Application

摘　　要：为探明隧道掌子面前方的围岩等级以保证后续施工安全,进行超前地质预报是最常用的技术手段。该文以青海加西公路JX-1标互助北山特长隧道为例,依据2种超前地质预报方法即地震波法和地质雷达法,探明隧道掌子面前方的围岩等级,纠正隧道设计阶段围岩等级不明确的误差,验证依靠超前地质探测查明围岩等级方法的可行性。此方法预测的围岩等级与开挖情况符合,能够为后续隧道工程建设提供参考。In order to find out the grade of surrounding rock in front of the face of the tunnel to ensure the safety of subsequent construction,advanced geological prediction is the most commonly used technical means.Taking Huzhu Beishan extra-long tunnel of Jiaxi Highway in Qinghai Province as a case,according to two advanced geological prediction methods,namely seismic wave method and geological radar method,this paper finds out the surrounding rock grade in front of the tunnel face,corrects the error of unclear surrounding rock grade in the tunnel design stage,and verifies the feasibility of relying on advanced geological exploration to find out the surrounding rock grade.The surrounding rock grade predicted by this method is consistent with the excavation situation,which can provide reference for the follow-up tunnel construction.

关 键 词：隧道 超前地质预报 围岩分级 地震波法 地质雷达法 

分 类 号：U45[建筑科学—桥梁与隧道工程]