| 降雨条件下超高单台阶排土边坡稳定性分析 |
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| 引用本文： | 郄永波,甘海阔.降雨条件下超高单台阶排土边坡稳定性分析[J].有色金属(矿山部分),2020,72(1):20-25. |
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| 作者姓名： | 郄永波 甘海阔 |
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| 作者单位： | （北京矿冶科技集团有限公司，北京 101600）,（北京矿冶科技集团有限公司，北京 101600） |
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| 基金项目： | 国家重点研发计划项目（2017YFC0804600） |
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| 摘 要： | 以国内某80m高单台阶排土场边坡为例,采用饱和-非饱和渗流有限单元法,对长历时降雨过程中及停雨后一段时间内边坡瞬态渗流场变化规律进行研究,分析了随降雨历时的边坡稳定性瞬态变化规律。结果表明,对于超高单台阶排土边坡,降雨过程主要影响表层一定范围内渗流场及稳定性,降雨过程中边坡失稳受浅层滑动破坏控制。研究成果可为多雨地区长期降雨过程中的超高单台阶排土场研究设计提供参考。
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| 关 键 词： | 排土场 单台阶 降雨 渗流 边坡稳定性 |
Stability analysis of extra-high slope in waste dump with one step on the condition of rain |
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| Authors: | QIE Yongbo and GAN Haikuo |
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| Affiliation: | (BGRIMM Technology Group,Beijing 100160,China) |
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| Abstract: | Taking a 80 m high slope in a local waste dump with one step as example, using finite element method for saturated-unsaturated, research on the change law of transient seepage field during the raining process and some times after rain was conducted, and the stability of high step in waste dump with the duration of raining time was analyzed. Results indicated that rain processes rendered the major impact to the seepage and stability of slope surface area of the waste dump slope. Slope instability was controlled by shallow sliding failure on the condition of rain. This study can provide reference for research and design of similar extra high slope in waste dump with one step on the condition of rain. |
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| Keywords: | waste dump with one step rain seepage slope stability |
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