Case history of the disastrous debris flows of Tianmo Watershed in Bomi County, Tibet, China: Some mitigation suggestions
文献类型：期刊论文
| 作者 | Ge Yong-gang1 ; Cui Peng1; Su Feng-huan1; Zhang Jian-qiang1; Chen Xing-zhang2
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| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 11期号:5页码:1253-1265 |
| 关键词 | Debris Flow Characteristics Hazard Chain Formation Condition Tianmo Watershed |
| ISSN号 | 1672-6316 |
| 通讯作者 | GE Yong-gang |
| 英文摘要 | Debris flows and landslides, extensively developing and frequently occurring along Parlung Zangbo, seriously damage the Highway from Sichuan to Tiebt (G318) at Bomi County. The disastrous debris flows of the Tianmo Watershed on Sept. 4, 2007, July 25, 2010 and Sept. 4, 2010, blocked Parlung Zangbo River and produced dammed lakes, whose outburst flow made 50 m high terrace collapse at the opposite bank due to intense scouring on the foot of the terrace. As a result, the traffic was interrupted for 16 days in 2010 because that 900 m highway base was destructed and 430 m ruined. These debris flows were initiated by the glacial melting which was induced by continuous higher temperature and the following intensive rainfall, and expanded by moraines along channels and then blocked Parlung Zangbo. At the outlet of watershed, the density, velocity and peak discharge of debris flow was 2.06 t/m(3), 12.7 m/s and 3334 m(3)/s, respectively. When the discharge at the outlet and the deposition volume into river exceeds 2125 m(3)/s and 126x10(3) m(3), respectively, debris flow will completely blocked Parlung Zangbo. Moreover, if the shear stress of river flow on the foot of terrace and the inclination angel of terrace overruns 0. 377 N/m(2) and 26A degrees, respectively, the unconsolidated terrace will be eroded by outburst flow and collapse. It was strongly recommended for mitigation that identify and evade disastrous debris flows, reduce the junction angel of channels between river and watershed, build protecting wall for highway base and keep appropriate distance between highway and the edge of unconsolidated terrace. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | LANDSLIDE DAM BREACH ; SOUTHWESTERN CHINA ; VOLCANIC COMPLEX ; FAILURE ; RIVER ; EROSION ; MORAINE ; RETREAT ; HAZARD ; BANK |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000342223500014 |
| 公开日期 | 2014-09-17 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7253]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.5 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 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Southwest Univ Sci & Technol, Sch Environm & Resources, Mianyang 621010, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge Yong-gang,Cui Peng,Su Feng-huan,et al. Case history of the disastrous debris flows of Tianmo Watershed in Bomi County, Tibet, China: Some mitigation suggestions[J]. JOURNAL OF MOUNTAIN SCIENCE,2014,11(5):1253-1265. |
| APA | Ge Yong-gang,Cui Peng,Su Feng-huan,Zhang Jian-qiang,&Chen Xing-zhang.(2014).Case history of the disastrous debris flows of Tianmo Watershed in Bomi County, Tibet, China: Some mitigation suggestions.JOURNAL OF MOUNTAIN SCIENCE,11(5),1253-1265. |
| MLA | Ge Yong-gang,et al."Case history of the disastrous debris flows of Tianmo Watershed in Bomi County, Tibet, China: Some mitigation suggestions".JOURNAL OF MOUNTAIN SCIENCE 11.5(2014):1253-1265. |
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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