宽频带地震台网在滑坡地质灾害监测预报中的应用
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摘要
在千将坪滑坡前地震动事件分析基础上,总结滑坡前滑坡体内部岩体形变和破裂所产生地震信号的典型特征,并建立宽频带地震台,对金坪子滑坡体和早谷田危岩体进行监测实验,提取基岩类、土质类和危岩体类3种基本物质组成滑坡的微振动前兆信息特征,为地震台网在滑坡监测预报中的应用推广和监测预报系统软件的研制奠定基础。根据测震学原理,研发滑坡监测分析系统软件(Smas),可为滑坡大规模活动前快速预警。
Based on analysis of seismic event before Qianjiangping landslide,the authors have summed up the typical characteristics of seismic signals generated by the internal rock mass deformation and fracture before landslide,and have established a broadband seismic station network to carry out monitoring experiment on Jinping landslide and early crop dangerous rock,from which the authors extracted the bedrock,soil and dangerous rock,and these three basic material consist of micro-vibration precursor information characteristics of landslide.All these lay a solid foundation for seismic network in the application of landslide monitoring and prediction and the development of monitoring and forecasting system software.According to the principle of seismometry,the author developed a set of landslide monitoring and analysis system(Smas) software,which has the characteristics of real-time and automation,and can also send landslide precursor information to relevant personnel of by means of SMS in the case of unattended condition(such as night),so as to achieve rapid alert prior to the landslide mass activities.
Based on analysis of seismic event before Qianjiangping landslide,the authors have summed up the typical characteristics of seismic signals generated by the internal rock mass deformation and fracture before landslide,and have established a broadband seismic station network to carry out monitoring experiment on Jinping landslide and early crop dangerous rock,from which the authors extracted the bedrock,soil and dangerous rock,and these three basic material consist of micro-vibration precursor information characteristics of landslide.All these lay a solid foundation for seismic network in the application of landslide monitoring and prediction and the development of monitoring and forecasting system software.According to the principle of seismometry,the author developed a set of landslide monitoring and analysis system(Smas) software,which has the characteristics of real-time and automation,and can also send landslide precursor information to relevant personnel of by means of SMS in the case of unattended condition(such as night),so as to achieve rapid alert prior to the landslide mass activities.
引文
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Keiler M,Knight J,Harrison S.Climate change and geomorphological hazards in the eastern European Alps[J].Philosophical Transactions of the Royal Society A:Mathematical,Physical and Engineering Sciences,2010,368(1 919):2 461—2 479.
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Surioach E,Vilajosana I,Khazaradze G et al.Seismic detection and characterization of landslides and other mass movements[J].Natural Hazards and Earth System Science,2005,5(6):791—798.
Tsou C Y,Feng Z Y,Chigira M.Catastrophic landslide induced by typhoon Morakot,Shiaolin,Taiwan[J].Geomorphology,2011,127(3):166-178.
Walter M,Joswig M.Seismic characterization of slope dynamics caused by softrock-landslides:The Super-Sauze case study[C].2009.
Weichert D,Horner R B,Evans S G.Seismic signatures of landslides:The 1990 Brenda Mine collapse and the 1965 hope rockslides[J].Bulletin of the Seismological Society of America,1994,84(5):1 523—1 532.
Yamada M,Matsushi Y,Chigira M et al.Seismic recordings of landslides caused by Typhoon Talas(2011),Japan[J].Geophysical Research Letters,2012,39(13):L13301.
彭欢,黄帮芝,杨永.滑坡监测技术方法研究[J].资源环境与工程,2012,(1):45-50.
仝达伟,张平之,吴重庆,等.滑坡监测研究及其最新进展[J].传感器世界,2005,(6):10-14.
王朝阳.滑坡监测预报效果评估方法研究[D].成都理工大学,2012.
王治华,杨日红.三峡水库区千将坪滑坡活动性质及运动特征[J].中国地质灾害与防治学报,2005,(3):5-11.
张丽华,张为,伍承彦.区域性地震滑坡预测方法研究进展[J].岩土工程界,2009,(8):48-51.
张业明,刘广润,常宏,等.三峡库区千将坪滑坡构造解析及启示[J].人民长江,2004,(9):24-26.
Dammeier F,Moore J R,Haslinger F et al.The seismic signature of rockslides:a review of events in the Central Alps[C].2010.
Feng Z.The seismic signatures of the 2009 Shiaolin landslide in Taiwan[J].Nat Hazards Earth Syst Sci,2011,11;1 559—1 569.
Feng Z.The seismic signatures of the surge wave from the 2009 Xiaolin landslide-dam breach in Taiwan[J].Hydrological Processes,2011,26(9):1 342-1 351.
Highland L,Bobrowsky P T.The Landslide Handbook:A Guide to Understanding Landslides[M].US Geological Survey Reston,VA,USA,2008.
Huggel C,Salzmann N,Allen S et al.Recent and future warm extreme events and high-mountain slope stability[J].Philosophical Transactions of the Royal Society A:Mathematical,Physical and Engineering Sciences,2010,368(1 919):2 435—2 459.
Kanamori H,Given J W.Analysis of long-period seismic waves excited by the May 18,1980,eruption of Mount St.HelensJ—A terrestrial monopole[J].Journal of Geophysical Research,1982,87:5 422—5 432.
Kawakatsu H.Centroid single force inversion of seismic waves generated by landslides[J].Journal of Geophysical Research,1989,94(B9),12 312—12 363.
Keiler M,Knight J,Harrison S.Climate change and geomorphological hazards in the eastern European Alps[J].Philosophical Transactions of the Royal Society A:Mathematical,Physical and Engineering Sciences,2010,368(1 919):2 461—2 479.
Lin C H,Kumagat H,Ando M et al.Detection of landslides and submarine slumps using broadband seismic networks[J].Geophysical Research Letters,2010,37(22):L22309.
Petley D.Global patterns of loss of life from landslides[J].Geology,2012,40(10):927—930.
Surioach E,Vilajosana I,Khazaradze G et al.Seismic detection and characterization of landslides and other mass movements[J].Natural Hazards and Earth System Science,2005,5(6):791—798.
Tsou C Y,Feng Z Y,Chigira M.Catastrophic landslide induced by typhoon Morakot,Shiaolin,Taiwan[J].Geomorphology,2011,127(3):166-178.
Walter M,Joswig M.Seismic characterization of slope dynamics caused by softrock-landslides:The Super-Sauze case study[C].2009.
Weichert D,Horner R B,Evans S G.Seismic signatures of landslides:The 1990 Brenda Mine collapse and the 1965 hope rockslides[J].Bulletin of the Seismological Society of America,1994,84(5):1 523—1 532.
Yamada M,Matsushi Y,Chigira M et al.Seismic recordings of landslides caused by Typhoon Talas(2011),Japan[J].Geophysical Research Letters,2012,39(13):L13301.
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