| 长历时降雨对高陡边坡排土场渗流影响分析及稳定性研究 |
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| 引用本文： | 韩亚兵,崔旋,甘海阔,刘欣欣.长历时降雨对高陡边坡排土场渗流影响分析及稳定性研究[J].现代矿业,2018,34(11):190-194. |
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| 作者姓名： | 韩亚兵 崔旋 甘海阔 刘欣欣 |
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| 作者单位： | 1.北京矿冶科技集团有限公司；2.金属矿山智能开采技术北京市重点实验室 |
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| 基金项目： | * 国家重点研发计划项目（编号：2017YFC0804608）；北京矿冶科技集团有限公司科技产业发展基金项目（编号：04602018-122）。 |
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| 摘 要： | 高台阶排土工艺使得排土场呈现高陡边坡趋势，降雨则是诱发高陡边坡滑动的一个重要因素。以某多雨地区高陡边坡排土场为例，开展了长历时降雨条件下渗流演化规律及稳定性影响分析。研究表明：排土场堆积高度越大，降雨对内部孔隙水压力分布的影响越小；排土场稳定性在不同降雨时期受深层和浅层2种不同的滑动方式控制；降雨引起抗滑稳定系数的降低速率大于停雨后安全系数的升高速率。
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| 关 键 词： | 排土场 高陡边坡 降雨 渗流分析 稳定性 |
Seepage Analysis and Stability Study of High and Steep Slope Dump under Long Duration Rainfall |
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| HAN Ya-Bing,CUI Xuan,GAN Hai-Kuo,LIU Xin-Xin.Seepage Analysis and Stability Study of High and Steep Slope Dump under Long Duration Rainfall[J].Modern Mining,2018,34(11):190-194. |
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| Authors: | HAN Ya-Bing CUI Xuan GAN Hai-Kuo LIU Xin-Xin |
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| Affiliation: | 1.Institute of Mining Engineering, Beijing General Research Institute of Mining and Metallurgy; 2.Beijing Key Laboratory of Nonferrous Intelligent Mining Technology |
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| Abstract: | High Bench dumping process makes the dump presents a trendcy of high and steep slope,and rainfall is an important cause of inducing high and steep slope to slide.Taking the high and steep slope drainage field in a rainy area as an example,through the example of a high and steep slope dump which is in abundant rainfall area, seepage evolution regularity and stability analysis under long duration rainfall is done.The results show that:the higher the height of the dump,the smaller the influence of rainfall on the distribution of pore water pressure;the stability of slope is controlled by two sliding modes of deep layer and shallow layer in different rainfall periods;the decrease rate of anti-slip stability coefficient caused by rainfall is greater than the increase rate of safety coefficient after raining. |
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| Keywords: | Dump High and steep slope Rainfall Seepage analysis Stability |
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