页岩地区浅埋隧道超前地质预报方法研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
以页岩的不良工程性质和围岩分级依据为基础,探讨公路隧道页岩浅埋段的超前地质预报方法的优化组合。通过比较国内外现有的各种超前地质预报方法的优缺点,提出了以TSP法和双频激电法为主,根据工程项目的等级适当考虑采用探地雷达作为补充的一套组合方案,而在某些特别复杂地段建议采用水平钻探加以验证。应用这套方案,中南大学在常(德)-张(家界)高速公路第十合同段的关口垭隧道进行了一次科研试验,对预报结果进行详细的处理和分析后,给施工单位提出了相应的施工建议。后期的跟踪调查结果表明,试验成果与实际情况基本吻合,给予了施工正确的指导,基本达到了试验目的。
Based on the bad engineering property of the shale and rock body classification,the paper discussed the best combination of all kinds of advanced forecast by geology method,which is possibly applied to shale region.By comparing the advantage and disadvantage of every method,the combination of TSP203 and induced polarization is more reasonable.In some special complicated regions,geology radar and the level drill can be used as the assistant means.We have made a test in GuanKouYa tunnel by this way.After analyzing the forecast result in detail,relevant construction advices are brought foreword.The actual result certificates that the forecast result is very accurate.
引文
[1]陈光宗,王石春,刘朝祯.太平驿水电站引水洞施工地质超前预报技术[J].铁道建筑技术,1995,(2):29-31.
    [2]何振起,李海,梁彦忠.利用地震反射法进行隧道施工地质超前预报[J].铁道工程学报,2000,(4):81-85.
    [3]丁恩保,等.隧道工程地质预报方法探讨[J].工程地质学报,1995,(3).
    [4]钟宏伟,赵凌.我国隧道工程超前预报技术现状分析[J].人民长江,2004,(9):16-18.
    [5]肖书安,吴世林.复杂地质条件下的隧道地质超前探测技术[J].工程地球物理学报,2004,(2):63-69.
    [6]Dickmann T,Sander B K.Drivage-concurrent tunnel seismicprediction(TSP):results from Vereina north tunnel mega-project and Piora pilot gallery Geomechanics Abstracts Volume[C].1997,Issue:2,February,1997:82.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心