Thaw-induced slope failures and stability analyses in permafrost regions of the Qinghai-Tibet Plateau, China
文献类型：期刊论文
| 作者 | Niu, Fujun1,2; Luo, Jing1,3; Lin, Zhanju1; Fang, Jianhong4; Liu, Minghao1,3 |
| 刊名 | LANDSLIDES
 |
| 出版日期 | 2016 |
| 卷号 | 13期号:1页码:55-65 |
| 关键词 | Permafrost Active-layer-detachment failure Retrogressive thaw slumping Stability assessment Qinghai-Tibet Plateau |
| ISSN号 | 1612-510X |
| DOI | 10.1007/s10346-014-0545-2 |
| 通讯作者 | Luo, Jing(luojinabcd@163.com) |
| 英文摘要 | The distribution of permafrost-related slope failures along the Qinghai-Tibet Highway from Wuddaoliang to Fenghuoshan correlates with ice content, slope gradient, and ground temperature. Slope failures are of two types. (1) Retrogressive thaw slumps result from icy permafrost being exposed by either man-induced excavation or fluvial-thermal erosion and undercutting of basal slopes. (2) Active-layer-detachment failures are caused by thaw of icy permafrost at the active layer-permafrost interface. After initial failure, active-layer-detachment failures can lead to retrogressive thaw-slumping and localized surficial landslide. Common trigger mechanisms for failure include high summer air temperatures and heavy summer precipitation. A third possible trigger mechanism for slope failure is earthquake occurrence. A geotechnical slope stability analysis was undertaken for an active-layer-detachment failure that had progressed into a retrogressive thaw slump. A safety factor (F (s) ) of 1.24 for the natural slope was determined using in situ tested strength parameters. However, the slope would lose stability when either the groundwater level over the permafrost table exceeded 1.42 m or seismic acceleration reached, or exceeded, 0.03 g. |
| 收录类别 | SCI |
| WOS关键词 | LAYER DETACHMENT FAILURES ; NORTHERN CANADA |
| WOS研究方向 | Engineering ; Geology |
| WOS类目 | Engineering, Geological ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000369433900005 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557107 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Luo, Jing |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China 2.CCCC First Highway Consultants Co Ltd, Minist Transport, Key Lab Highway Construct & Maintenance Technol P, Xian 710075, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Qinghai Res Inst Transportat, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Fujun,Luo, Jing,Lin, Zhanju,et al. Thaw-induced slope failures and stability analyses in permafrost regions of the Qinghai-Tibet Plateau, China[J]. LANDSLIDES,2016,13(1):55-65. |
| APA | Niu, Fujun,Luo, Jing,Lin, Zhanju,Fang, Jianhong,&Liu, Minghao.(2016).Thaw-induced slope failures and stability analyses in permafrost regions of the Qinghai-Tibet Plateau, China.LANDSLIDES,13(1),55-65. |
| MLA | Niu, Fujun,et al."Thaw-induced slope failures and stability analyses in permafrost regions of the Qinghai-Tibet Plateau, China".LANDSLIDES 13.1(2016):55-65. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。