Characteristics, mechanisms and prevention modes of debris flows in an arid seismically active region along the Sichuan-Tibet railway route, China: a case study of the Basu-Ranwu section, southeastern Tibet
文献类型：期刊论文
| 作者 | Hu, Guisheng1; Zhao, Chunyao2; Chen, Ningsheng1 ; Chen, Kunting1; Wang, Tao1
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| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 78期号:18页码:18 |
| 关键词 | Sichuan-Tibet railway Arid seismically active region Lengqu River Debris flows Mechanisms Prevention mode |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-019-8554-z |
| 通讯作者 | Chen, Ningsheng(chennsh@imde.ac.cn) |
| 英文摘要 | The Basu-Ranwu section of the Sichuan-Tibet railway is in an arid and tectonically active valley characterized by rugged topography, sharp river incision and severe debris flow events. The study aims to provide scientific support for the prevention and control of debris flow in this section by revealing the dynamic characteristics, main controlling factors and distribution rules of debris flow. Research based on the analysis of field investigation data, remote sensing images, DEM and geological map has yielded the following results: (1) the forty-eight debris flows in the study area can be divided into five types based on the formation conditions, which are zonally distributed along the fault zone and also varied vertically in space and depended on the hardness of the underlying strata. (2) A complex geological and environmental background has provided appropriate material sources and favourable potential energy conditions conducive to the formation of disastrous debris flows. Additionally, the development of debris flows was affected by antecedent earthquakes and droughts, and disastrous debris flows are triggered by an abundant source of water. (3) The study area is located in the arid area, where the rainfall runoff is small and the scale of debris flow is relatively small, except for a few glacial lake outburst debris flows; therefore, the debris flow in this section can be controlled; prevention modes of debris flow hazards have been proposed for the railway engineering based on the types of railway engineering and the scale and type of the debris flows. The results provide an important and object scientific basis for route selection for geological engineering projects and for the control of debris flows in the Basu-Ranwu section of the Sichuan-Tibet railway. |
| WOS关键词 | EARTHQUAKE ; DEFORMATION ; INITIATION ; DURATION ; EXAMPLE ; SYSTEM ; IMPACT |
| 资助项目 | National Key Research and Development Program of China[2018YFC1505202] ; National Natural Science Foundation of China[41861134008] ; Foundation of Institute of Mountain Hazards and Environment, CAS[SDS-135-1705] ; Bomi geological disaster observation and research station of Chinese Academy of Sciences |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000485909000001 |
| 出版者 | SPRINGER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Foundation of Institute of Mountain Hazards and Environment, CAS ; Bomi geological disaster observation and research station of Chinese Academy of Sciences |
| 源URL | [http://ir.imde.ac.cn/handle/131551/27150]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Chen, Ningsheng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Ningxia Highway Survey & Design Inst Co Ltd, Ningxia 750004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Guisheng,Zhao, Chunyao,Chen, Ningsheng,et al. Characteristics, mechanisms and prevention modes of debris flows in an arid seismically active region along the Sichuan-Tibet railway route, China: a case study of the Basu-Ranwu section, southeastern Tibet[J]. ENVIRONMENTAL EARTH SCIENCES,2019,78(18):18. |
| APA | Hu, Guisheng,Zhao, Chunyao,Chen, Ningsheng,Chen, Kunting,&Wang, Tao.(2019).Characteristics, mechanisms and prevention modes of debris flows in an arid seismically active region along the Sichuan-Tibet railway route, China: a case study of the Basu-Ranwu section, southeastern Tibet.ENVIRONMENTAL EARTH SCIENCES,78(18),18. |
| MLA | Hu, Guisheng,et al."Characteristics, mechanisms and prevention modes of debris flows in an arid seismically active region along the Sichuan-Tibet railway route, China: a case study of the Basu-Ranwu section, southeastern Tibet".ENVIRONMENTAL EARTH SCIENCES 78.18(2019):18. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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