川藏铁路旺北村特大型滑坡特征及对铁路危害分析
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摘要
川藏铁路沿线因独特的地形地貌、活跃的构造运动、复杂的地层岩性等环境条件,滑坡灾害极其发育,其中规模为大型和特大型滑坡灾害也分布多,其相比中型(小型)滑坡对铁路的危害更大。为了保证川藏铁路顺利建设和长期安全运营,选择旺北村滑坡这一典型特大型滑坡灾害点作为研究对象,根据多次的实地考察,运用工程测量、无人机航拍、遥感影像等手段,查明旺北村滑坡的平面形态、地形地貌等,分析阐述滑坡成灾过程、形成原因及对铁路可能产生的危害方式,并提出相应的防治建议,以期为川藏铁路的建设提供科学依据以及为该区域滑坡灾害研究提供参考。
Because of its special topography,active tectonic movement,complex formation lithology and other environmental conditions,Chengdu-Lhasa Railway encounters extremely well-developed landslide disaster and widely distributed large-scale landslide and super large-scale landslide,which are more harmful to the railway than medium-sized( small) landslides. In order to ensure the smooth construction of the Chengdu-Lhasa Railway and long-term safe operation,this paper selects Wangbei village landslide,a typical super large-scale landslide,as the research object. On repeated on-site visits,engineering measures,unmanned aerial vehicle( UAV) and remote sensing images are employed to identify the Wangbei village landslide plane and the topography landform. The process,the causes and potential damages of the landslide are analyzed and suggestions for landslides prevention are proposed,which are expected to provide scientific basis for the construction of Chengdu-Lhasa Railway and provide references for the study of landslide hazard in the region.
Because of its special topography,active tectonic movement,complex formation lithology and other environmental conditions,Chengdu-Lhasa Railway encounters extremely well-developed landslide disaster and widely distributed large-scale landslide and super large-scale landslide,which are more harmful to the railway than medium-sized( small) landslides. In order to ensure the smooth construction of the Chengdu-Lhasa Railway and long-term safe operation,this paper selects Wangbei village landslide,a typical super large-scale landslide,as the research object. On repeated on-site visits,engineering measures,unmanned aerial vehicle( UAV) and remote sensing images are employed to identify the Wangbei village landslide plane and the topography landform. The process,the causes and potential damages of the landslide are analyzed and suggestions for landslides prevention are proposed,which are expected to provide scientific basis for the construction of Chengdu-Lhasa Railway and provide references for the study of landslide hazard in the region.
引文
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[16]邵兆刚,孟宪刚,朱大岗,等.青藏高原层状地貌特征及其成因初探[J].地学前缘,2009,16(6):186-194.
[17]中国科学院成都山地灾害与环境研究所.川藏铁路昌都至林芝段崩塌滑坡灾害分布规律与选线建议技术咨询报告[R].成都:中国科学院成都山地灾害与环境研究所,2016.
[18]韦志刚,黄荣辉,董文杰.青藏高原气温和降水的年际和年代际变化[J].大气科学,2003,27(2):157-6170.
[19]崔建恒.川藏公路地质环境与整治改建方案的思考[J].工程地质学报,2003,11(2):100-104.
[2]李孝攀,李远富,周先虎,等.川藏铁路康定至昌都段地质灾害区域危险性评价[J].铁道标准设计,2017,61(6):58-62.
[3]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.
[4]Voight B,Faust C.Frictional heat and strength loss in some rapid landslide;error correction and affirmation of mechanism for the Vaiontlandslide[J].Geotechnique,1992,42(4):641-643.
[5]黄润秋,张伟锋,裴向军.大光包滑坡工程地质研究[J].工程地质学报,2003(1):72-78.
[6]陈剑,王全才,李波.西藏樟木滑坡特征及成因研究[J].自然灾害学报,2016,25(2):103-109.
[7]徐则民,刘文连,黄润秋.金沙江寨子村巨型古滑坡的工程地质特征及其发生机制[J].岩石力学与工程学报,2011,30(2):3539-3550.
[8]白永健,郑万模,李明辉,等.川藏公路茶树山滑坡特征及成因机制分析[J].工程地质学报,2010,18(6):862-866
[9]郭长宝,杜宇本,佟元清,等.青藏高原东缘理塘乱石包高速远程滑坡发育特征与形成机理[J].地质通报,2016,35(8):1332-1345.
[10]李秀珍,张小刚,崔云,等.川藏铁路康定至昌都段滑坡崩塌类型、特征及其对铁路的危害和影响[C]∥“川藏铁路建设的挑战与对策”2016学术交流会,2016.
[11]殷跃平.西藏波密易贡高速巨型滑坡特征及减灾研究[J].水文地质工程地质学报,2000,27(4):8-11.
[12]张小刚,王成华,孔纪明,等.川藏公路102滑坡群的基本特征[J].山地研究,1998,19(2):151-155.
[13]郭海强.滑坡危险区铁路选线技术初探[D].成都:西南交通大学,2012.
[14]宋章,张广泽,蒋良文,等.川藏铁路工程地质特征及地质选线原则[J].铁道建筑,2017,02:142-145.
[15]赵永国.川藏公路沿线地质灾害及其整治对策[J].自然灾害学报,2003,14(4):11-16.
[16]邵兆刚,孟宪刚,朱大岗,等.青藏高原层状地貌特征及其成因初探[J].地学前缘,2009,16(6):186-194.
[17]中国科学院成都山地灾害与环境研究所.川藏铁路昌都至林芝段崩塌滑坡灾害分布规律与选线建议技术咨询报告[R].成都:中国科学院成都山地灾害与环境研究所,2016.
[18]韦志刚,黄荣辉,董文杰.青藏高原气温和降水的年际和年代际变化[J].大气科学,2003,27(2):157-6170.
[19]崔建恒.川藏公路地质环境与整治改建方案的思考[J].工程地质学报,2003,11(2):100-104.
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