干旱区生态环境知识资源中心(Arid): 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

Arid

DOI	10.1007/s12665-019-8554-z
	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
	Hu, Guisheng 1; Zhao, Chunyao 2; Chen, Ningsheng 1; Chen, Kunting 1; Wang, Tao1
通讯作者	Chen, Ningsheng
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:18
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.
英文关键词	Sichuan-Tibet railway Arid seismically active region Lengqu River Debris flows Mechanisms Prevention mode
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000485909000001
WOS关键词	EARTHQUAKE ; DEFORMATION ; INITIATION ; DURATION ; EXAMPLE ; SYSTEM ; IMPACT
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215439
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],2019,78(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).
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).