线路工程地震触发高位崩塌滑坡灾势预测方法
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摘要
为了能够在高烈度山区快速判识威胁到线路工程的地震触发高位崩塌滑坡,提出一种地震触发高位崩塌滑坡灾势预测方法.预测方法在GIS技术支持下,按照水文地质条件划分边坡单元;基于边坡单元建立威胁线路的高位边坡判识模型,即高位边坡须同时满足能量和路径两种必要条件,才能保证其在失稳后会威胁到线路工程;在此基础上,结合综合指标法预测地震触发的崩塌滑坡,得到了研究区域内地震作用下威胁到线路工程的高位崩塌滑坡灾势区划图.案例分析结果表明:灾势预测方法可以对来自于路域以外复杂坡体条件下的地震触发高位崩塌滑坡体是否会威胁到线路工程进行快速判识,对高烈度山区线路选线以及既有线改建工程提供决策依据,可用于指导选线设计人员快速完成空间概略定线及多目标决策.
To quickly identify whether seismic high-locality landslides could threaten the line project at highintensity mountains,potential disaster prediction of seismic high-locality landslide is proposed. According to hydrogeology condition,slope units are divided by GIS technology. Discriminant model of seismic high-locality slopes threatening line project is established. The model contains energy and path conditions. Both of two conditions are met,it can be ensured that seismic high-locality slope threatening the line project after losing stabilities. Zoning map of the seismic high-locality slopes threatening line project in study area can be obtained. Case analysis results indicate that this model approach can identify quickly which seismic high-locality landslides could threaten the line project under complex slope conditions,and provide a decision basis for location design and reconstruction of existing lines project at high-intensity mountains,and can also be used to guide designers to complete sketchy space alignment and multi-objective decision quickly in mountain.
To quickly identify whether seismic high-locality landslides could threaten the line project at highintensity mountains,potential disaster prediction of seismic high-locality landslide is proposed. According to hydrogeology condition,slope units are divided by GIS technology. Discriminant model of seismic high-locality slopes threatening line project is established. The model contains energy and path conditions. Both of two conditions are met,it can be ensured that seismic high-locality slope threatening the line project after losing stabilities. Zoning map of the seismic high-locality slopes threatening line project in study area can be obtained. Case analysis results indicate that this model approach can identify quickly which seismic high-locality landslides could threaten the line project under complex slope conditions,and provide a decision basis for location design and reconstruction of existing lines project at high-intensity mountains,and can also be used to guide designers to complete sketchy space alignment and multi-objective decision quickly in mountain.
引文
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[14]段书苏,姚令侃,郭沉稳.山区复杂大流域地貌发育阶段判识方法及应用[J].哈尔滨工业大学学报,2016,48(3):147-153.DUAN Shusu,YAO Lingkan,GUO Chenwen.Tendency prediction of collapse-landslide caused by earthquake based on the erosion cycle theory[J].Journal of Harbin Institute of Technology,2016,48(3):147-153.
[15]景泽.青川县马鹿乡老鹰岩地质灾害危险性评价及治理工程设计[D].成都:成都理工大学,2010:1-20.JING Ze.Research on the deformation and failure mechanism and design of engineering management along Malu of Qingchuan Eagle rock 1#landslide[D].Chengdu:Chengdu University of Technology,2010:1-20.
[16]丁彦慧,王余庆,孙进忠,等.地震崩滑预测方法及其工程应用研究[J].工程地质学报,2000,8(4):475-480.DING Yanhui,WANG Yuqing,SUN Jinzhong,et al.Research on the method for prediction of earthquake induced landslides and its application to engineering projects[J].Journal of Engineering Geology,2000,8(4):475-480.
[17]刘玉海.墨脱81/2级地震宏观震害及烈度特征的考证[J].科学观察,1985,8(5):477-483.LIU Yuhai.Study of the macroscopic seismic hazard and the intensity features of the motuo earthquake,tibet[J].Journal of seismological research,1985,8(5):477-483.
[18]邵翠茹,尤惠川,曹忠权,等.雅鲁藏布江大峽谷地区构造和地震活动特征[J].震灾防御技术,2008,3(4):398-412.SHAO Cuiru,YOU Huichuan,CAO Zhongquan,et al.Tectonic characteristics and Seismic Activities of Yaluzangbu Grand Canyon,Tibet,China[J].Technology for earthquake disaster prevention,2008,3(4):398-412.
[2]陈运泰,杨智娴,张勇,等.从汶川地震到芦山地震[J].中国科学地球科学,2013,43(6):1064-1072.CHEN Yuntai,YANG Zhixian,ZHANG Yong,et al.From 2008Wenchuan earthquake to 2013 Lushan earthquake[J].Science in China Earth Sciences,2013,43(6):1064-1072.
[3]徐锡伟,陈桂华,于贵华,等.芦山地震发震构造及其与汶川地震关系讨论[J].地学前缘,2013,20(3):11-20.XU Xiwei,CHEN Guihua,YU Guihua,et al.Seismogenic structure of Lushan earthquake and its relationship with Wenchuan earthquake[J].Earth Science Frontiers,2013,20(3):11-20.
[4]姚令侃,陈强.5.12汶川地震对线路工程抗震技术提出的新课题[J].四川大学学报(工程科学版),2009,41(3):43-50.YAO Lingkan,CHEN Qiang.New research subjects on earthquake resistant techniques of line engineering extracted from 5.12 Wenchuan Earthquake[J].Journal of Sichuan University(Engineering Science Edition),2009,41(3):43-50.
[5]崔鹏,何思明,姚令侃,等.汶川地震山地灾害形成机理与风险控制[M].北京:科学出版社,2011:37-49.CUI Peng,HE Siming,YAO Lingkan et al.The formation mechanism and risk control of Wenchuan earthquake mountain hazards[M].Beijing:Science Press,2011:37-49.
[6]王运生,徐鸿彪,罗永红,等.地震高位滑坡形成条件及拋射运动程式研究[J].岩石力学与工程学报,2009,28(11):2360-2368.WANG Yunsheng,XU Hongbiao,LUO Yonghong,et al.Study of formation conditions and toss motion program of high landslides induced by earthquake[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(11):2360-2368.
[7]谢谟文,蔡美峰,江崎哲郎.基于GIS边坡稳定三维极限平衡方法的开发及应用[J].岩土力学,2006,27(1):117-122.XIE Mowen,CAI Meifeng,ESAKI T.GIS-based three-dimensional slope stability limit equilibrium method and application[J].Rock and Soil Mechanics,2006,27(1):117-122.
[8]XIE Mowen,ESAKI T,ZHOU G,et al.GIS-based 3D critical slope stability analysis and landslide hazard assessment[J].ASCE Journal of Geotechnical and Geoenvironmental Engineering,2003,129(12):1109-1118.
[9]谢谟文,蔡美峰.信息边坡工程学的理论与实践[M].北京:科学出版社,2005:46-53.XIE Mowen,CAI Meifeng.The theory and practice of information of slope engineering[M].Beijing:Science Press,2005:46-53.
[10]方玉树.超大型滑坡动力学问题研究[J].水文地质工程地质,1988(6):20-23.FANG Yushu.The dynamic problems research of very large landslide[J].Hydrogeology&Engineering Geology,1988(6):20-23.
[11]LEGROS F.The mobility of long-runout landslides[J].Engineering Geology,2002,63(3):301-331.
[12]许强,裴向军,黄润秋.汶川地震大型滑坡研究[M].北京:科学出版社,2012:29-34.XU Qiang,PEI Xiangjun,Huang Runqiu,et al.Large scale landslides induced by the Wenchuan earthquake[M].Beijing:Science Press,2012:29-34.
[13]段书苏,姚令侃,郭沉稳.芦山地震触发崩塌滑坡优势方向与机理[J].西南交通大学学报,2015,50(3):428-434.DUAN Shusu,YAO Lingkan,GUO Chenwen.Predominant direction and mechanism of landslides triggered by the Lushan earthquake[J].Journal of Southwest Jiaotong University,2015,50(3):428-434.
[14]段书苏,姚令侃,郭沉稳.山区复杂大流域地貌发育阶段判识方法及应用[J].哈尔滨工业大学学报,2016,48(3):147-153.DUAN Shusu,YAO Lingkan,GUO Chenwen.Tendency prediction of collapse-landslide caused by earthquake based on the erosion cycle theory[J].Journal of Harbin Institute of Technology,2016,48(3):147-153.
[15]景泽.青川县马鹿乡老鹰岩地质灾害危险性评价及治理工程设计[D].成都:成都理工大学,2010:1-20.JING Ze.Research on the deformation and failure mechanism and design of engineering management along Malu of Qingchuan Eagle rock 1#landslide[D].Chengdu:Chengdu University of Technology,2010:1-20.
[16]丁彦慧,王余庆,孙进忠,等.地震崩滑预测方法及其工程应用研究[J].工程地质学报,2000,8(4):475-480.DING Yanhui,WANG Yuqing,SUN Jinzhong,et al.Research on the method for prediction of earthquake induced landslides and its application to engineering projects[J].Journal of Engineering Geology,2000,8(4):475-480.
[17]刘玉海.墨脱81/2级地震宏观震害及烈度特征的考证[J].科学观察,1985,8(5):477-483.LIU Yuhai.Study of the macroscopic seismic hazard and the intensity features of the motuo earthquake,tibet[J].Journal of seismological research,1985,8(5):477-483.
[18]邵翠茹,尤惠川,曹忠权,等.雅鲁藏布江大峽谷地区构造和地震活动特征[J].震灾防御技术,2008,3(4):398-412.SHAO Cuiru,YOU Huichuan,CAO Zhongquan,et al.Tectonic characteristics and Seismic Activities of Yaluzangbu Grand Canyon,Tibet,China[J].Technology for earthquake disaster prevention,2008,3(4):398-412.