三维地震波层析成像技术在隧道超前地质预报中的应用
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摘要
超前地质预报是隧道施工中不可或缺的必要步骤,是降低施工过程地质灾害发生、减少灾害损失的重要手段.三维地震波层析成像技术是利用地震波反射原理,采用地震层析成像及全息岩土成像技术的新型超前地质预报技术,在国内应用较少.文中介绍了三维地震波层析成像技术的工作原理及方法,并结合工程地质类比法,对新建大瑞铁路尖山岭隧道进行了超前地质预报.研究结果表明,三维地震波层析成像技术对隧道超前地质预报效果良好,准确率达到90%.
The geological predication is indispensable to minimize geological disaster before tunnel excavation.The 3D seismic wave's tomography,using seismic waves reflection principle and rock-soil mass vision 3D TM technology,rarely used in China,is a new kind of geological predication method.The operation principle and theory of the system is introduced,and its application to the tunneling in Jian Shanling Mountain for Dali-Ruili railway is discussed with engineering geological analogy.It is found that the 3D seismic wave's tomography technology for tunneling's geological predication is of good practicability and accuracy.
The geological predication is indispensable to minimize geological disaster before tunnel excavation.The 3D seismic wave's tomography,using seismic waves reflection principle and rock-soil mass vision 3D TM technology,rarely used in China,is a new kind of geological predication method.The operation principle and theory of the system is introduced,and its application to the tunneling in Jian Shanling Mountain for Dali-Ruili railway is discussed with engineering geological analogy.It is found that the 3D seismic wave's tomography technology for tunneling's geological predication is of good practicability and accuracy.
引文
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[8]张建斌,朱合华,朱岳明.厦门翔安海底隧道数字化建模技术[J].岩石力学与工程学报,2007,26(6):1237-1242.ZHANG Jianbin,ZHU Hehua,ZHU Yueming.DigitalStrata Modeling and Its Application to Xiang’an SubseaTunnel in Xiamen[J].Chinese Journal of Rock Mechanicsand Engineering,2007,26(6):1237-1242.(in Chinese)
[9]何振起.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.HE Zhenqi.Geological Super-Leading Forecast DuringTunnel Construction by Utilizing Seismic Response Analy-sis method[J].Journal of Railway Engineering Society,2000(4):81-85.(in Chinese)
[2]丁勇,施斌,孙宇,等.基于BOTDR的白泥井3号隧道拱圈变形监测[J].工程地质学报,2006,14(5):649-653.DING Yong,SHI Bin,SUN Yu,et al.Monitoring on theArch Rings Deformation in the No.3 Tunnel of Bainijingwith BOTDR Based Strain Measurement Technique[J].Journal of Engineering Geology,2006,14(5):649-653.(in Chinese)
[3]赖金星,谢永利,李华,等.软弱破碎围岩双连拱隧道安全施工与监测[J].工程地质学报,2006,14(4):513-517.LAI Jinxing,XIE Yongli,LI Hua,et al.Real Time Moni-toring and Analysis for Safe construction of Double:ArchHighway Tunnel in Soft and Weak Surrounding Rock mass[J].Journal of Engineering Geology,2006,14(4):513-517.(in Chinese)
[4]陈建峰.隧道施工地质超前预报技术比较[J].地下空间,2003,3(1):5-8.CHEN Jianfeng.Comparison of Techniques for GeologicalPrediction of Tunnel[J].Underground Space,2003,3(1):5-8.(in Chinese)
[5]曾昭璜.隧道地震反射法超前预报[J].地球物理学报,1994,37(2):269-271.ZENG Zhaohuang.Prediction Ahead of the Tunnel Face bythe Seismic Reflection Methods[J].Chinese Journal ofGeophysics,1994,37(2):269-271.(in Chinese)
[6]李术才,李树忱,张庆松.岩溶裂隙水与不良地质情况超前预报研究[J].岩石力学与工程学报,2007,26(2):217-224.LI Shucai,LI Shuchen,ZHANG Qingsong.Forecast ofKarst-Fractured Groundwater and Defective GeologicalConditions[J].Chinese Journal of Rock Mechanics and En-gineering,2007,26(2):217-224.(in Chinese)
[7]曲海峰,刘志刚,朱合华.隧道信息化施工中综合地质预报技术[J].岩石力学与工程学报,2006,25(6):1246-1251.QU Haifeng,LIU Zhigang,ZHU Hehua.Technique ofSynthetic Geologic Prediction Ahead in Tunnel InformationConstruction[J].Chinese Journal of Rock Mechanics andEngineering,2006,25(6):1246-1251.(in Chinese)
[8]张建斌,朱合华,朱岳明.厦门翔安海底隧道数字化建模技术[J].岩石力学与工程学报,2007,26(6):1237-1242.ZHANG Jianbin,ZHU Hehua,ZHU Yueming.DigitalStrata Modeling and Its Application to Xiang’an SubseaTunnel in Xiamen[J].Chinese Journal of Rock Mechanicsand Engineering,2007,26(6):1237-1242.(in Chinese)
[9]何振起.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.HE Zhenqi.Geological Super-Leading Forecast DuringTunnel Construction by Utilizing Seismic Response Analy-sis method[J].Journal of Railway Engineering Society,2000(4):81-85.(in Chinese)
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