城市超深埋隧洞不良地质探测方法探析.pdfVIP

DOI:10．16616/j．cnki．11-4446/TV．2025．03．10

城市超深埋隧洞不良地质探测方法探析

朱俊涛

(中铁七局集团有限公司,陕西西安712000)

【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。

【关键词】超深埋隧洞;物探;钻探;不良地质

中图分类号:TV221.2文献标志码:B文章编号:2097-0528(2025)03-064-08

Detectionmethodsforadversegeologyinurbanultra-deep-buriedtunnels

ZHUJuntao

(ChinaRailwaySeventhGroupCo．,Ltd．,Xi’an712000,China)

Abstract:Thispaperfocusesontheultra-deep-buriedtunnelprojectinthemiddle-weatheredlimestonestratumatadepth

of60metersinthewesternsectionoftheexpandedHangjiahuSouthDrainageWesternChannel(WestLine)project.The

studyutilizesthedifferencesinphysicalpropertiesbetweenthekarst-affectedzoneandthesurroundingmedia,employing

groundmicrotremorexplorationmethodstodetectthedistributionofadversegeologicalconditions,includingpotentialkarst

formations,dissolutionvoids,andfracturedrockmassesinthemiddle-weatheredlimestonestratum.Fortheanomalous

areasidentifiedbygeophysicalmethods,targeteddrillingexplorationiscarriedouttofurtherrevealandverifythefindings.

Theresultsshowthatthecombinationofgroundmicrotremorexplorationanddrillingmethodscaneffectivelyidentifythe

presenceofadverseundergroundgeology,providingguidanceforsubsequentconstructionwork.

Keywords:ultra-deep-buriedtunnel;geophysicalexploration;drilling;adversegeology

在岩溶发育地段进行盾构隧洞掘进施工,可能会加。因此,在岩溶发育地层进行隧洞施工,必须采取有

导致盾构掘进过程中出现突水、突泥安全风险,继而引效的方法探明地下岩溶、溶隙等不良地质的分布情况