唐家湾东古滑坡成因与现代复活机制分析
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摘要
以唐家湾东古滑坡为例,基于地质详勘资料,采用滑坡结构剖析、地形恢复反演、历史地震资料分析、动力有限元计算验证等手段,通过定性分析与定量计算相结合对该古滑坡成因进行详细阐述和论证;然后,结合影响斜坡稳定的各相关因素,对其现代复活机制和稳定性状态进行系统分析。结果表明:古地震是古滑坡产生的直接原因,其当前复活除了与固有地质背景和降雨条件有关外,人类工程活动(包括城镇建设和大坝蓄水)是最主要的直接诱发因素。
Based on the geologic exploration data,the cause of the East Tangjiawan ancient landslide is surmised and elaborated in detail by qualitative analysis methods,including slope structure dissection,topography restoration and inversion,paleoearthquake record analysis and quantitative analysis,i.e.dynamic FEM computation and verification.And then,combining the possible influence factors comprehensive analysis,the modern reviving mechanism and the present stability evaluation is systematically analysed finally.The results show that paleoearthquake is the direct cause of the ancient landslide and in addition to the inherent geology backgrounds and the rainfall condition,the human engineering activities(include town construction and water storage of dam)is the uppermost induction factor for the reviving of the landslide.
Based on the geologic exploration data,the cause of the East Tangjiawan ancient landslide is surmised and elaborated in detail by qualitative analysis methods,including slope structure dissection,topography restoration and inversion,paleoearthquake record analysis and quantitative analysis,i.e.dynamic FEM computation and verification.And then,combining the possible influence factors comprehensive analysis,the modern reviving mechanism and the present stability evaluation is systematically analysed finally.The results show that paleoearthquake is the direct cause of the ancient landslide and in addition to the inherent geology backgrounds and the rainfall condition,the human engineering activities(include town construction and water storage of dam)is the uppermost induction factor for the reviving of the landslide.
引文
[1]武雄,于青春,何满潮,等.三峡库区巴东黄土坡巨型古滑坡体形成机理[J].水利学报,2006,37(8):969-976.(Wu Xiong,Yu Qingchun,He Manchao,et al.Formation mechanism of Huangtupo landslide inreservoir of Three Gorges Project[J].Journal ofHydraulic Engineering,2006,37(8):969-976.(inChinese))
[2]喻学文,吴永锋.长江三峡巴东县城区三道沟滑坡成因研究[M].北京:中国铁道出版社,1998.(YuXuewen,Wu Yongfeng.Mechanism resarch of the ThreeGroove Landslide in Badong Country of Three Gorgesarea[M].Beijing:Chinese Railway Publication House,1998.(in Chinese))
[3]尹光志,俸锦福,刘腊美.向家山滑坡机理及稳定性研究[J].地下空间与工程学报,2007,3(1):167-171.(Yin Guangzhi,Feng Jinfu,Liu Lamei.Study on themechanism and stability of Xiang Jiashan Landslide[J].Chinese Journal of Underground Space and Engineering,2007,3(1):167-171.(in Chinese))
[4]四川省地质矿产局915水文地质工程地质大队.湖北省三峡库区巴东县唐家湾东滑坡防治工程详细工程地质勘查报告[R].四川眉山:四川省地质矿产局915水文地质工程地质大队,2005,7.(No.915Hydrogeology and Engineering Geology Group ofGeological and Mineral Resources Bureau,ShichuanProvince.Detailed engineering geology explorationreport for the prevention and cure of TangjiawanLandslide in Badong Country in Three Gorges Area,HuBei Province[R].Meishan,Sichuan Province:No.915 Hydrogeology and Engineering Geology Group ofGeological and Mineral Resources Bureau,2005,7.(inChinese))
[5]崔政权.三峡自然地质灾害与库区沿江城镇建设[A]//三峡库区地质环境暨第二届中日地层环境力学国际学术讨论会论文集[C].北京:煤炭工业出版社,1996.(Cui Zhengquan.Nature hazard and townconstruction along Yangtze River in Three Gorges Area[A]//Proceedings of International Symposium onGeological Environment of the Three Gorges ReservoirArea and Second Sino-Japan Strata EnvironmentMechanics[C].Beijing:China Coal IndustryPublishing House,1996.(in Chinese))
[6]熊继平.湖北地震史料汇考[M].北京:地震出版社,1986.(Xiong Jiping.Collection of historical earthquakerecord[M].Beijing:Earthquake Publishing House,1986.(in Chinese))
[7]江见鲸,何放龙,何益斌,等.有限元法及其应用[M].北京:机械工业出版社,2006.(Jiang Jianjing,He Fanglong,He Yibin et al.FEM and its application[M].Beijing:China Machine Press,2006.(inChinese))
[8]Newmark N.M.Effect of earthquake on dams andembankments[J].Geotechnique,1965,15(20):139-159.
[9]GB50011-20011建筑抗震设计规范[C].(GB50011-20011 Code for seismic design of buildings[C].(inChinese))
[10]门玉明,彭建兵,李寻昌,等.层状结构岩质边坡动力稳定性试验研究[J].世界地震工程,2004,20(4):131-136.(Meng Yuming,Peng Jianbin,Li Xunchang,et al.Experimental study on seismic stability of rockyslope with layer structure[J].World EarthquakeEngineering,2004,20(4):131-136.(in Chinese))
[11]熊光赤,阮永芬,杨静.降雨与边坡稳定之间的相关性分析[J].地下空间与工程学报,2005,1(6):1 017-1 020.(Xiong Guangchi,RuanYongfen,YangJin.Relevance analysis between rainfall and slopestability[J].Chinese Journal of Underground Space andEngineering,2005,1(6):1 017-1 020.(in Chinese))
[2]喻学文,吴永锋.长江三峡巴东县城区三道沟滑坡成因研究[M].北京:中国铁道出版社,1998.(YuXuewen,Wu Yongfeng.Mechanism resarch of the ThreeGroove Landslide in Badong Country of Three Gorgesarea[M].Beijing:Chinese Railway Publication House,1998.(in Chinese))
[3]尹光志,俸锦福,刘腊美.向家山滑坡机理及稳定性研究[J].地下空间与工程学报,2007,3(1):167-171.(Yin Guangzhi,Feng Jinfu,Liu Lamei.Study on themechanism and stability of Xiang Jiashan Landslide[J].Chinese Journal of Underground Space and Engineering,2007,3(1):167-171.(in Chinese))
[4]四川省地质矿产局915水文地质工程地质大队.湖北省三峡库区巴东县唐家湾东滑坡防治工程详细工程地质勘查报告[R].四川眉山:四川省地质矿产局915水文地质工程地质大队,2005,7.(No.915Hydrogeology and Engineering Geology Group ofGeological and Mineral Resources Bureau,ShichuanProvince.Detailed engineering geology explorationreport for the prevention and cure of TangjiawanLandslide in Badong Country in Three Gorges Area,HuBei Province[R].Meishan,Sichuan Province:No.915 Hydrogeology and Engineering Geology Group ofGeological and Mineral Resources Bureau,2005,7.(inChinese))
[5]崔政权.三峡自然地质灾害与库区沿江城镇建设[A]//三峡库区地质环境暨第二届中日地层环境力学国际学术讨论会论文集[C].北京:煤炭工业出版社,1996.(Cui Zhengquan.Nature hazard and townconstruction along Yangtze River in Three Gorges Area[A]//Proceedings of International Symposium onGeological Environment of the Three Gorges ReservoirArea and Second Sino-Japan Strata EnvironmentMechanics[C].Beijing:China Coal IndustryPublishing House,1996.(in Chinese))
[6]熊继平.湖北地震史料汇考[M].北京:地震出版社,1986.(Xiong Jiping.Collection of historical earthquakerecord[M].Beijing:Earthquake Publishing House,1986.(in Chinese))
[7]江见鲸,何放龙,何益斌,等.有限元法及其应用[M].北京:机械工业出版社,2006.(Jiang Jianjing,He Fanglong,He Yibin et al.FEM and its application[M].Beijing:China Machine Press,2006.(inChinese))
[8]Newmark N.M.Effect of earthquake on dams andembankments[J].Geotechnique,1965,15(20):139-159.
[9]GB50011-20011建筑抗震设计规范[C].(GB50011-20011 Code for seismic design of buildings[C].(inChinese))
[10]门玉明,彭建兵,李寻昌,等.层状结构岩质边坡动力稳定性试验研究[J].世界地震工程,2004,20(4):131-136.(Meng Yuming,Peng Jianbin,Li Xunchang,et al.Experimental study on seismic stability of rockyslope with layer structure[J].World EarthquakeEngineering,2004,20(4):131-136.(in Chinese))
[11]熊光赤,阮永芬,杨静.降雨与边坡稳定之间的相关性分析[J].地下空间与工程学报,2005,1(6):1 017-1 020.(Xiong Guangchi,RuanYongfen,YangJin.Relevance analysis between rainfall and slopestability[J].Chinese Journal of Underground Space andEngineering,2005,1(6):1 017-1 020.(in Chinese))
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