基于GA-PP模型的露天矿边坡稳定性综合评价研究

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英文篇名：Study on Comprehensive Evaluation of Open-pit Slope Stability Based on GA-PP Model 作者：王浩 ; 张云鹏 ; 马海越 英文作者：WANG Hao;ZHANG Yunpeng;MA Haiyue;College of Mining Engineering,North China University of Science and Technology;Hebei Key Lab of Mining Development and Safety Technique; 关键词：露天矿 ; 边坡稳定性 ; 评价指标体系 ; 遗传算法 ; 投影寻踪 英文关键词：Open-pit mine;;Slope stability;;Evaluation index system;;Genetic algorithm;;Projection pursuit 中文刊名：KYYK 英文刊名：Mining Research and Development 机构：华北理工大学矿业工程学院;河北省矿业开发与安全技术重点实验室; 出版日期：2019-02-25 出版单位：矿业研究与开发 年：2019 期：v.39;No.223 基金：河北省自然科学基金项目(E2016209388) 语种：中文; 页：KYYK201902007 页数：4 CN：02 ISSN：43-1215/TD 分类号：38-41

摘要

为了对露天矿边坡稳定性进行客观评价,建立了边坡稳定性评价指标体系,提出了基于遗传算法和投影寻踪(GA-PP)的评价方法,以唐山地区某露天矿边坡稳定性进行实证研究。结果表明:基于GA-PP模型的评价结果与边坡稳定性实际状况相符,为今后露天矿边坡稳定性分析提供了新思路;另外,评价指标的最优投影方向排序为:岩体完整性指标>内聚力>内摩擦>边坡高度>岩石质量指标>地应力,表明该露天矿的岩体完整性指标对其边坡稳定性影响程度最大。
        In order to objectively evaluate the open-pit slope stability,an evaluation index system for slope stability was established and an evaluation method based on genetic algorithm and projection pursuit(GA-PP)was proposed.An empirical study was conducted on the stability of an open-pit mine in Tangshan area.The results showed that the evaluation results based on GA-PP model were consistent with the actual conditions of slope stability,and provided new ideas for the future analysis of open-pit slope stability.In addition,the best order of projection direction of the evaluation index could be ranked as follows:rock mass integrity index>cohesion>internal friction>slope height>rock quality index>in-situ stress.It indicated that the open-pit mine rock integrity index had the greatest impact on the open-pit slope stability.

引文

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