某露天铁矿冰碛土台阶边坡可靠性分析
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。
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 st,ability of benches.
中文标题：
某露天铁矿冰碛土台阶边坡可靠性分析
Reliability Analysis of Moraine Soil Bench Slop in an Open Pit
作者：
徐鼎平
Xu Dingping
作者简介:徐鼎平,1980年生,男,汉族,湖北石首人,硕士,主要从事岩土工程数值计算及可靠度方面的研究工作。E-mail:benjohnson@163.com
通讯地址：
马鞍山矿山研究院岩土工程研究所, 安徽马鞍山 243004
InstituteofGeotechnicalEngineering,MaanshanInstituteofMiningResearch,MaanshanAnhui243004China
中图分类号:TU457
出版物：岩土工程技术
收稿日期:2006-12-04
网络出版日期:2021-07-10
关键词:台阶边坡,冰碛土,可靠度,破坏概率
Key words:bench slope,moraine soil,reliability,failure probability
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