| 某露天铁矿冰碛土台阶边坡可靠性分析 |
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| 引用本文： | 徐鼎平.某露天铁矿冰碛土台阶边坡可靠性分析[J].岩土工程技术,2007,21(1):11-14. |
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| 作者姓名： | 徐鼎平 |
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| 作者单位： | 马鞍山矿山研究院岩土工程研究所,安徽马鞍山,243004 |
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| 摘 要： | 以某露天矿边坡台阶为研究对象,提出一种新的可靠度求取方法———简化统计矩法。采用该法对原设计的台阶边坡和本研究所推荐的台阶边坡进行了可靠性分析。分析结果表明,台阶边坡破坏概率较高,主要是由冰碛土强度的固有不确定性、抗风化能力以及水理性质决定的,而边坡结构因素对其影响不显著。建议采取平台宽度3 m、3 m和16 m的三台阶组方案,同时采用截洪和护坡等有效措施来提高台阶边坡的稳定。
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| 关 键 词： | 台阶边坡 冰碛土 可靠度 破坏概率 |
| 文章编号： | 1007-2993(2007)01-0011-04 |
| 修稿时间： | 2006年12月4日 |
Reliability Analysis of Moraine Soil Bench Slop in an Open Pit |
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| Xu Dingping.Reliability Analysis of Moraine Soil Bench Slop in an Open Pit[J].Geotechnical Engineering Technique,2007,21(1):11-14. |
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| Authors: | Xu Dingping |
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| Abstract: | Taking benches of slope in an open pit as the study object,Simplified Rosenblueth method as a new method of reliability analysis is presented and adopted to analyze the reliability of bench slope of primary design scheme and recommendatory scheme.The results indicate that high failure probability of benches is primarily depended on inherent variability of strength,anti?weathering ability and hydro?physical properties of moraine soil.And structure factors of slope bring little effects on it.The scheme of ternary benches whose platform widths are 3 m,3 m and 16 m is recommended and some effective measures such as holding up flood and revetment are put forward to enhance stability of benches. |
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| Keywords: | bench slope moraine soil reliability failure probability |
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