国道317线汶川-理县段边坡地震破坏模式研究
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摘要
通过对汶川地震前后国道317线汶川-理县段边坡现场调查资料的对比分析,研究了该路段边坡的主要破坏类型、分布特点和防治建议。研究表明破坏类型主要为坡面碎屑流、崩塌落石,但未造成沿线欠稳定边坡的整体破坏;此类灾害具有影响路段长、偶发性明显、发生部位难以精确确定等明显特点,并导致后期发生坡面碎屑流和稀性泥石流的发生风险大大增加且这一风险将长期存在;对于此类灾害,其防治宜遵循绕避为主,工程治理为辅的原则。
Based on analysis of field investigation data of slopes Wenchuan-Lixian section at national highway No.317 before and after Wenchuan earthquake,this paper studied their main failure type,distribution characters and prevention suggestions.Research shows that the main types of slope failure are slope surface debris flow and stone falling.Those two kinds of failure bear characters of wide influence range,random and hardly detected location.Therefore,the prevention to those two kinds of failure should follow the principles of leaving enough buffer space first and then taking prevention measures.
Based on analysis of field investigation data of slopes Wenchuan-Lixian section at national highway No.317 before and after Wenchuan earthquake,this paper studied their main failure type,distribution characters and prevention suggestions.Research shows that the main types of slope failure are slope surface debris flow and stone falling.Those two kinds of failure bear characters of wide influence range,random and hardly detected location.Therefore,the prevention to those two kinds of failure should follow the principles of leaving enough buffer space first and then taking prevention measures.
引文
[1]重庆交通科研设计院.国道317线汶川至马尔康段公路改建工程勘察报告[R].2006(Chongqing Com-munication Research and Design Institute.The engi-neering geological investigation report of Wenchuanto Maerkang section rebuilding project at No.317 na-tional highway[R].(in Chinese))
[2]重庆交通科研设计院.国道317线汶川至马尔康公路改建工程恢复重建方案研究[R].2007.(Chongqing Communication Research and Design In-stitute.Rebuilding schemes comparison of Wenchuanto Maerkang section rebuilding project at No.317 na-tional highway after earthquake[R].)(in Chinese)
[3]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1985.(ZHANG Zhuoyuan,WANGShitian,WANG Lansheng.Principles of EngineeringGeology Analysis[M].Beijing:Geology Press,1985.(in Chinese))
[4]黄润秋.中国西南岩石高边坡的主要特征及其演化[J].地球科学进展,2005,20(3):292-297.(HUANG Runqiu.Main characteristics of high rockslopes in Southwestern China and their dynamic evo-lution[J].Advances in Earth Science,2005,20(3):292-297.(in Chinese))
[5]姜德义,王国栋.高速公路工程边坡的工程地质分类[J].重庆大学学报,2003,26(11):113-116.(JIANGDeYi,WANG GuoDong.Engineering geologic classi-fication of slopes for highway projects[J].Journal ofChongqing University,2003,26(11):113-116.(inChinese))
[6]崔政权,李宁.边坡工程—理论与实践最新发展[M].北京:中国水利水电出版社.1999.(CUIZhengquan,LI Ning.Slpoe Engineering-Newly De-velopment on Theory and Practice[M].Beijing:Chi-na Water Power Press,1999.(in Chinese))
[7]张有天,周维垣.岩石高边坡的变形与稳定[M].北京:中国水利水电出版社.1999.(ZHANG Youtian,ZHOU Weiyuan.Deformation and Stability of HighRockmass Slopes[M].Beijing:China WaterPowerPress,1999.(in Chinese))
[8]黄润秋.20世纪以来中国的大型滑坡及其发生机制[J].岩石力学与工程学报,2007,26(3):433-454.(HUANG Runqiu.Large-scale landslides in Chinasince the 20th century and their sliding mechanisms[J].Chinese Journal of Rock Mechanics and Engi-neering,2007,26(3):433-454.(in Chinese))
[2]重庆交通科研设计院.国道317线汶川至马尔康公路改建工程恢复重建方案研究[R].2007.(Chongqing Communication Research and Design In-stitute.Rebuilding schemes comparison of Wenchuanto Maerkang section rebuilding project at No.317 na-tional highway after earthquake[R].)(in Chinese)
[3]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1985.(ZHANG Zhuoyuan,WANGShitian,WANG Lansheng.Principles of EngineeringGeology Analysis[M].Beijing:Geology Press,1985.(in Chinese))
[4]黄润秋.中国西南岩石高边坡的主要特征及其演化[J].地球科学进展,2005,20(3):292-297.(HUANG Runqiu.Main characteristics of high rockslopes in Southwestern China and their dynamic evo-lution[J].Advances in Earth Science,2005,20(3):292-297.(in Chinese))
[5]姜德义,王国栋.高速公路工程边坡的工程地质分类[J].重庆大学学报,2003,26(11):113-116.(JIANGDeYi,WANG GuoDong.Engineering geologic classi-fication of slopes for highway projects[J].Journal ofChongqing University,2003,26(11):113-116.(inChinese))
[6]崔政权,李宁.边坡工程—理论与实践最新发展[M].北京:中国水利水电出版社.1999.(CUIZhengquan,LI Ning.Slpoe Engineering-Newly De-velopment on Theory and Practice[M].Beijing:Chi-na Water Power Press,1999.(in Chinese))
[7]张有天,周维垣.岩石高边坡的变形与稳定[M].北京:中国水利水电出版社.1999.(ZHANG Youtian,ZHOU Weiyuan.Deformation and Stability of HighRockmass Slopes[M].Beijing:China WaterPowerPress,1999.(in Chinese))
[8]黄润秋.20世纪以来中国的大型滑坡及其发生机制[J].岩石力学与工程学报,2007,26(3):433-454.(HUANG Runqiu.Large-scale landslides in Chinasince the 20th century and their sliding mechanisms[J].Chinese Journal of Rock Mechanics and Engi-neering,2007,26(3):433-454.(in Chinese))
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