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现代矿业 2018, Vol. 34 Issue (11) :190-194    DOI:
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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
韩亚兵1,2,崔旋1,2,甘海阔1,2,刘欣欣1,2*
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
Seepage Analysis and Stability Study of High and Steep Slope Dump under Long Duration Rainfall
Han Yabing1,2,Cui Xuan1,2,Gan Haikuo1,2,LiuXinxin1,2*
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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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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韩亚兵
崔旋
甘海阔
刘欣欣
关键词排土场   高陡边坡   降雨   渗流分析   稳定性     
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.
KeywordsDump   High and steep slope   Rainfall   Seepage analysis   Stability     
Fund:

* 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)。

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,V34(11): 190-194
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,V34(11): 190-194
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