Long runout mechanism of the Shenzhen 2015 landslide: insights from a two-phase flow viewpoint
文献类型：期刊论文
| 作者 | Qiao Cheng; Ou Guo-qiang; Pan Hua-li; Ouyang Chao-jun; Jia Yang |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:10页码:2247-2265 |
| 关键词 | Dynamics Landslide Long runout Pore pressure Two-phase |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4595-5 |
| 文献子类 | Article |
| 英文摘要 | A catastrophic landslide occurred at Hongao dumpsite in Guangming New District of Shenzhen, South China, on December 20, 2015. An estimated total volume of 2.73x10(6) m(3) of construction spoils was mobilized during this event. The landslide traveled a long distance on a low-relief terrain. The affected area was approximately 1100 m in length and 630 m in width. This landslide made 33 buildings destroyed, 73 people died and 4 people lost. Due to the special dumping history and other factors, soil in this landfill is of high initial water content. To identify the major factors that attribute to the long runout character, a two-phase flow model of Iverson and George was used to simulate the dynamics of this landslide. The influence of initial hydraulic permeability, initial dilatancy, and earth pressure coefficient was examined through numerical simulations. We found that pore pressure has the most significant effect on the dynamic characteristics of Shenzhen landslides. Average pore pressure ratio of the whole basal surface was used to evaluate the degree of liquefaction for the sliding material. The evolution and influence factors of this ratio were analyzed based on the computational results. An exponential function was proposed to fit the evolution curve of the average pore pressure ratio, which can be used as a reasonable and simplified evaluation of the pore pressure. This fitting function can be utilized to improve the single-phase flow model. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000447295900013 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46330]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.10 |
| 推荐引用方式 GB/T 7714 | Qiao Cheng,Ou Guo-qiang,Pan Hua-li,et al. Long runout mechanism of the Shenzhen 2015 landslide: insights from a two-phase flow viewpoint[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(10):2247-2265. |
| APA | Qiao Cheng,Ou Guo-qiang,Pan Hua-li,Ouyang Chao-jun,&Jia Yang.(2018).Long runout mechanism of the Shenzhen 2015 landslide: insights from a two-phase flow viewpoint.JOURNAL OF MOUNTAIN SCIENCE,15(10),2247-2265. |
| MLA | Qiao Cheng,et al."Long runout mechanism of the Shenzhen 2015 landslide: insights from a two-phase flow viewpoint".JOURNAL OF MOUNTAIN SCIENCE 15.10(2018):2247-2265. |
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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