城市超深埋隧洞不良地质探测方法探析  

Detection methods for adverse geology in urban ultra-deep-buried tunnels

作　　者：朱俊涛 ZHU Juntao(China Railway Seventh Group Co.,Ltd.,Xi’an 712000,China)

机构地区：[1]中铁七局集团有限公司,陕西西安712000

出　　处：《水利建设与管理》2025年第3期64-71,33,共9页Water Conservancy Construction and Management

摘　　要：本文以扩大杭嘉湖南排后续西部通道(西线)工程西段中风化灰岩地层60m超深埋隧洞工程为研究对象,根据岩溶发育区相对周围介质表现出的物性差异,采用地面微动勘探方法,进行中风化灰岩地层可能存在的岩溶、溶隙及破碎岩体范围等不良地质分布情况探测。对于物探发现的异常区域,进行针对性钻孔勘探,进一步揭示验证。结果表明,采用地面微动勘探与钻孔勘探相结合的方法,可以有效探明地下不良地质赋存情况,指导后续工程施工。This paper focuses on the ultra-deep-buried tunnel project in the middle-weathered limestone stratum at a depth of 60 meters in the western section of the expanded Hangjiahu South Drainage Western Channel(West Line)project.The study utilizes the differences in physical properties between the karst-affected zone and the surrounding media,employing ground microtremor exploration methods to detect the distribution of adverse geological conditions,including potential karst formations,dissolution voids,and fractured rock masses in the middle-weathered limestone stratum.For the anomalous areas identified by geophysical methods,targeted drilling exploration is carried out to further reveal and verify the findings.The results show that the combination of ground microtremor exploration and drilling methods can effectively identify the presence of adverse underground geology,providing guidance for subsequent construction work.

关 键 词：超深埋隧洞 物探 钻探 不良地质 

分 类 号：TV221.2[水利工程—水工结构工程]