Landslide mechanism of waste rock dump on a soft gently dipping foundation: a case study in China
文献类型：期刊论文
| 作者 | Wang, Haibin1; Sun, Guanhua1; Sui, Tan2 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 80期号:5页码:10 |
| 关键词 | Waste rock dump Slope Landslide Soft foundation |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-021-09407-x |
| 英文摘要 | In Miyi County of Sichuan Province of China, landslides are the most common type of waste dump failure, resulting from poorly compacted waste rock dump on weak soil. A waste dump failure on a soft, gently dipping foundation is examined in terms of the geological conditions, failure characteristics, movement processes and deposit forms, including the long run-out feature of the landslide. The waste dump failure and the subsequent deformation to the foundation are caused by an increase in pore water pressure and developed through the soft foundation underlying the heavy waste. The landslide run-out distance is influenced by the liquefiable silty clay layer. In this study, the landslide was triggered by the heavy load of waste rocks on top of a soft foundation of low-bearing capacity. The increased pore pressure in the foundation could not be released, which caused deformation of the foundation and triggered a landslide. The stability evolution is also researched in this study. In this study area: (1) the landslide mass is accelerated by the liquefaction of the saturated and water-rich silty clay layer, and the plastic deformation of the foundation caused by the collapsed waste dump; (2) the shear strength is strongly influenced by the water content; (3) when a waste dump is constructed on top of a water-sensitive gently dipping ground, it is important to provide drainage to dissipate pore water pressure; and (4) considering low factors of safety during heavy rains, secondary landslide is possible in the event of heavy rain and earthquake, indicating that heavy rainfall is the leading cause of the waste dump failure. |
| 资助项目 | National Natural Science Foundation of China[51674238] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000625186600004 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25885]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Sun, Guanhua |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China 2.Univ Surrey, Dept Mech Engn Sci, Guildford GU2XH, Surrey, England |
| 推荐引用方式 GB/T 7714 | Wang, Haibin,Sun, Guanhua,Sui, Tan. Landslide mechanism of waste rock dump on a soft gently dipping foundation: a case study in China[J]. ENVIRONMENTAL EARTH SCIENCES,2021,80(5):10. |
| APA | Wang, Haibin,Sun, Guanhua,&Sui, Tan.(2021).Landslide mechanism of waste rock dump on a soft gently dipping foundation: a case study in China.ENVIRONMENTAL EARTH SCIENCES,80(5),10. |
| MLA | Wang, Haibin,et al."Landslide mechanism of waste rock dump on a soft gently dipping foundation: a case study in China".ENVIRONMENTAL EARTH SCIENCES 80.5(2021):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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