TSP超前地质预报异常地震波信号
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摘要
隧道地震波预报(tunnel seismic prediction,TSP)超前地质预报系统已在国内外多条隧道中成功应用,做为一种应用最为广泛的长距离预报手段,在隧道施工地质预报中发挥了巨大的作用.在TSP数据采集过程中,会遇到复杂多变的围岩和现场条件,采集到的地震波波形也会千差万别.研究了几种常见的异常原始地震波波形特性和成因,并提出采取相应的措施,避免产生和接收异常信号,提高TSP地震波信号质量,为增加TSP数据解译的准确性和可靠性打下坚实的基础.
As one of the most commonly used long-term geological forecasting methods,the TSP advanced geological prediction system, is now used successfully in many tunnels at home and aboard,which plays a tremendous role in tunnel construction and geological prediction.A variety of surrounding rock and site conditions will be encountered in the collection process of the TSP data,so the collections of the original seismic waveforms are different in many ways.Research was made on the characteristics and causes of several common abnormal original waveforms.By adopting corresponding measures,it can avoid triggering and accepting abnormal signals,and more rational seismic waves can be obtained,and the accuracy and reliability interpretation of the TSP data can be improved.
As one of the most commonly used long-term geological forecasting methods,the TSP advanced geological prediction system, is now used successfully in many tunnels at home and aboard,which plays a tremendous role in tunnel construction and geological prediction.A variety of surrounding rock and site conditions will be encountered in the collection process of the TSP data,so the collections of the original seismic waveforms are different in many ways.Research was made on the characteristics and causes of several common abnormal original waveforms.By adopting corresponding measures,it can avoid triggering and accepting abnormal signals,and more rational seismic waves can be obtained,and the accuracy and reliability interpretation of the TSP data can be improved.
引文
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[2]钟世航,孙宏志,王荣,等.隧道施工掌子面前方地质预报应遵循原则的探讨[C]//中国交通土建工程学术论文集.成都:[s.n.],2006:595-600.ZHONG Shihang,SUN Hongzhi,WANG Rong,et al.Discussof principles in tunnel geological prediction[C]//China Traffic&Civil Engineering Academic Symposium.Chengdu:[s.n],2006:597-600.
[3]李术才,李树忱,张庆松,等.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):217-225.LI Shucai,LI Shuchen,ZHANG Qingsong,et al.Forcast ofkarst-fractured groundwater and defective geological conditions[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(2):217-225.
[4]许振浩,李术才,张庆松,等.TSP超前地质预报地震波反射特性研究[J].地下空间与工程学报,2008,4(4):640-644.XU Zhenhao,LI Shucai,ZHANG Qingsong,et al.Reflectioncharacteristic of seismic wave in TSP advance geological predic-tion[J].Chinese Journal of Underground Space and Engineer-ing,2008,4(4):640-644.
[5]单娜琳,程志平,刘云祯.工程地震勘探[M].北京:冶金工业出版社,2006.SHAN Nalin,CHENG Zhiping,LIU Yunzhen.Engineeringearthquake exploration[M].Beijing:Metallurgical IndustryPress,2006.
[6]何发亮,李苍松,陈成宗.隧道地质超前预报[M].成都:西南交通大学出版社,2006.HE Faliang,LI Cangsong,CHEN Chengzong.Tunnel geologi-cal prediction[M].Chengdu:Southwest Jiaotong UniversityPress,2006.
[7]刘云祯.TGP隧道地震波预报系统与技术[J].物探与化探,2009,33(4):170-177.LIU Yunzhen.TGP tunnel seismic wave forecast system and itstechnology[J].Geophysical&Geochemical Exploration,2009,33(4):170-177.
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