岩溶隧道超长破碎带超前预报方法

具有典型岩溶地区特征的老鹰山隧道工程，因穿越断层而进入350m超长破碎带。为了降低老鹰山隧道工程施工风险，采用超前预报技术获取掌子面前方岩层信息。首先依据地勘资料，针对开挖段潜在灾害地质体，结合各物探方法特点，制定了老鹰山隧道基于掌子面编录，地震波法（TSP），地质雷达法（GPR）以及红外探水等相结合的综合超前预报方案。分析了隧道右幅K15+930处岩层异常信号特征，并得到实际开挖验证，现场实际应用效果较好。相关预报思路、探测方法及信号分析方法可为类似岩溶地区超长破碎带隧道超前预报工作提供参考，具有实际的推广价值。...

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Bibliographic Details
Published in中国港湾建设 Vol. 37; no. 9; pp. 38 - 43
Main Author 刘和文;张羽;郭玉彬;徐宾宾;袁方龙;江宗高
Format Journal Article
LanguageChinese
Published 2017
Subjects
岩溶地区;隧道工程;超长破碎带;综合超前预报方法
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Summary:具有典型岩溶地区特征的老鹰山隧道工程，因穿越断层而进入350m超长破碎带。为了降低老鹰山隧道工程施工风险，采用超前预报技术获取掌子面前方岩层信息。首先依据地勘资料，针对开挖段潜在灾害地质体，结合各物探方法特点，制定了老鹰山隧道基于掌子面编录，地震波法（TSP），地质雷达法（GPR）以及红外探水等相结合的综合超前预报方案。分析了隧道右幅K15+930处岩层异常信号特征，并得到实际开挖验证，现场实际应用效果较好。相关预报思路、探测方法及信号分析方法可为类似岩溶地区超长破碎带隧道超前预报工作提供参考，具有实际的推广价值。
Bibliography:karst area; tunneling; super-long broken zone; synthetic advanced prediction technology
The projectof Laoying-mountain tunnel located in typical karst area,it would run into super-long broken zonewhich has350m long as passing through the fault.In order to reduce the construction risk of tunnel project,we used forecastingtechnology to obtain the information in front of face rock layer.At first,according to the geological exploration data and thepotential geological disasters in excavation,combined with the characteristics of various geophysical methods,we developed thesynthetic advanced prediction technologies for the Laoying-mountain tunnel,includes the following:face catalog,seismic wavemethod(TSP),ground penetrating radar(GPR)and infrared water.We also analyzed the characteristic of abnormal signal ink15+930at the right of the tunnel,and verified the results by the actual excavation.The practical application results are provednice.The related prediction methods,detection methods and signal analysis methods c
ISSN:2095-7874