斜坡危岩体崩塌运动的数学模型及工程应用
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摘要
崩塌是"5·12"汶川地震诱发的主要次生地质灾害之一,在对灾区村镇大量崩塌体现场调查的基础上,将崩塌危岩体的运动过程分为自由落体、弹跳和滚动3个阶段,建立了各阶段运动过程的数学模型.以灾区九寨沟杨家岩崩塌体为例,计算了危岩体的运动速度、滚动距离和冲击力,为灾后重建中崩塌体的治理提供了依据.
Collapse is one of the major secondary geological disasters induced by Wenchuan earthquake on May 12th,2008.Based on many on-site investigations of collapse bodies in disaster areas,the movement process of unstable rock masses is divided into three stages of free-fall,bouncing,and rolling.Mathematical models of the three stages are established separately.Yangjiatai collapse body in Jiuzhaigou is taken as an example.Its velocity of unstable rock masses,rolling distance,and impact force are calculated.The models can provide a basis for the treatment design of the collapse bodies in the disaster reconstruction process.
Collapse is one of the major secondary geological disasters induced by Wenchuan earthquake on May 12th,2008.Based on many on-site investigations of collapse bodies in disaster areas,the movement process of unstable rock masses is divided into three stages of free-fall,bouncing,and rolling.Mathematical models of the three stages are established separately.Yangjiatai collapse body in Jiuzhaigou is taken as an example.Its velocity of unstable rock masses,rolling distance,and impact force are calculated.The models can provide a basis for the treatment design of the collapse bodies in the disaster reconstruction process.
引文
[1]唐红梅,易朋莹.危岩落石运动路径研究[J].重庆建筑大学学报,2003,25(1):17-23.TANG Hong-mei,YI Peng-ying.Research on dangerousrock movement route[J].Journal of Chongqing JianzhuUniversity,2003,25(1):17-23.(in Chinese)
[2]陈洪凯,唐红梅,胡明,等.危岩锚固计算方法研究[J].岩石力学与工程学报,2005,24(8):1321-1327.CHEN Hong-kai,TANG Hong-mei,HU Ming,et al.Research on anchorage calculation method for unstable rock[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1321-1327.(in Chinese)
[3]陈洪凯,王蓉,唐红梅.危岩研究现状及趋势综述[J].重庆交通学院学报,2003,22(3):18-22.CHEN Hong-kai,WANG Rong,TANG Hong-mei.Reviewon current situation to study and trend of dangerousrockmass[J].Journal of Chongqing Jiaotong University,2003,22(3):18-22.(in Chinese)
[4]胥良,李云贵,刘艳梅.川西108国道高位崩塌成因与运动特征[J].水文地质与工程地质,2008,3:28-31.XU Liang,LI Yun-gui,LIU Yan-mei.Formationmechanism and movement characteristic of a high altitudecollapse on the No.108 national highway in west SichuanProvince[J].Hydrogeology&Engineering Geology,2008,3:28-31.(in Chinese)
[5]兰昌义,赵其华.基于GIS的某边坡崩塌落石运动特征分析[J].四川地震,2008,126(1):32-36.LAN Chang-yi,ZHAO Qi-hua.Characters analysis of aslope’s rock falling trace based on GIS software platform[J].Earthquake Research in Sichuan,2008,126(1):32-36.(in Chinese)
[6]张宝军,焦发解,左明.白岩危岩体崩塌破坏及其危害性防治[J].岩土力学,2006(S):1277-1280.ZHANG Bao-jun,JIAO Fa-xie,ZUO Ming.On the fallingmechanism and hazardness prevention and cure of thebaiyan crag[J].Rock and Soil Mechanics,2006(S):1277-1280.(in Chinese)
[7]黄润秋,刘卫华.滚石在平台上的运动特征分析[J].地球科学进展,2008,23(5):517-523.HUANG Run-qiu,LIU Wei-hua.Study on themovementcharateristics of rolling rock blocks on platform[J].Advances in Earth Science,2008,23(5):517-523.(inChinese)
[8]曾廉.崩塌与防治[M].成都:西南交通大学出版社,1990.
[9]同济大学航空航天与力学学院基础力学教学研究部.理论力学[M].上海:同济大学出版社,2005.
[2]陈洪凯,唐红梅,胡明,等.危岩锚固计算方法研究[J].岩石力学与工程学报,2005,24(8):1321-1327.CHEN Hong-kai,TANG Hong-mei,HU Ming,et al.Research on anchorage calculation method for unstable rock[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1321-1327.(in Chinese)
[3]陈洪凯,王蓉,唐红梅.危岩研究现状及趋势综述[J].重庆交通学院学报,2003,22(3):18-22.CHEN Hong-kai,WANG Rong,TANG Hong-mei.Reviewon current situation to study and trend of dangerousrockmass[J].Journal of Chongqing Jiaotong University,2003,22(3):18-22.(in Chinese)
[4]胥良,李云贵,刘艳梅.川西108国道高位崩塌成因与运动特征[J].水文地质与工程地质,2008,3:28-31.XU Liang,LI Yun-gui,LIU Yan-mei.Formationmechanism and movement characteristic of a high altitudecollapse on the No.108 national highway in west SichuanProvince[J].Hydrogeology&Engineering Geology,2008,3:28-31.(in Chinese)
[5]兰昌义,赵其华.基于GIS的某边坡崩塌落石运动特征分析[J].四川地震,2008,126(1):32-36.LAN Chang-yi,ZHAO Qi-hua.Characters analysis of aslope’s rock falling trace based on GIS software platform[J].Earthquake Research in Sichuan,2008,126(1):32-36.(in Chinese)
[6]张宝军,焦发解,左明.白岩危岩体崩塌破坏及其危害性防治[J].岩土力学,2006(S):1277-1280.ZHANG Bao-jun,JIAO Fa-xie,ZUO Ming.On the fallingmechanism and hazardness prevention and cure of thebaiyan crag[J].Rock and Soil Mechanics,2006(S):1277-1280.(in Chinese)
[7]黄润秋,刘卫华.滚石在平台上的运动特征分析[J].地球科学进展,2008,23(5):517-523.HUANG Run-qiu,LIU Wei-hua.Study on themovementcharateristics of rolling rock blocks on platform[J].Advances in Earth Science,2008,23(5):517-523.(inChinese)
[8]曾廉.崩塌与防治[M].成都:西南交通大学出版社,1990.
[9]同济大学航空航天与力学学院基础力学教学研究部.理论力学[M].上海:同济大学出版社,2005.
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