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有色金属(矿山部分):2022,74(3):85-90
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基于极限平衡的不同类型边坡稳定性分析计算方法探讨
董贺伟
((首钢集团有限公司矿业公司, 河北 唐山 064404))
Stability analysis and calculation methods for different slope types based on limit equilibrium theory
DONG Hewei
(( Shougang Mining Corperation,Tangshan Hebei 064404, China))
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本文已被:浏览 67次   下载 61
投稿时间:2022-04-18    修订日期:2022-04-18
中文摘要: 针对不同类型的露天矿山边坡,其破坏方式和计算边坡稳定性的方法也有所不同。本文旨在通过分析某铁矿的8处典型区域剖面的地质赋存条件,基于极限平衡理论,分别选用合适的计算方法对边坡稳定性进行校核。采用Geostudio软件的SLOPE/W模块进行计算,分别模拟边坡在自重+地下水、自重+地下水+爆破振动力、自重+地下水+地震力三种荷载下的安全系数,结合边坡特点,比较瑞典条分法、Bishop法、精确Janbu法和Morgenstern-Price四种方法的适用性和优缺点。可为同行业在边坡稳定性分析选用合适的计算方法方面提供更多的参考。同时,结合矿山实际,对不同类型的边坡提出了针对性的治理建议。
Abstract:According to different types of open-pit mine slope, its failure mode and calculation method of slope stability are different. This paper aims to check the slope stability by analyzing the geological occurrence conditions of 8 typical regional sections of an iron mine and selecting appropriate calculation methods respectively based on the limit equilibrium theory. SLOPE/W module using Geostudio software is used in this paper to calculate, respectively simulating the safety factor of SLOPE under three loads: dead weight + groundwater, dead weight + groundwater + blasting vibration power, dead weight + groundwater + seismic force. Combined with the characteristics of SLOPE, the applicability, advantages and disadvantages of the Four methods, including The Swedish strip division method, Bishop method, accurate Janbu method and Morgenstern-Price method, are compared. It can provide more reference for the same industry to choose the appropriate calculation method for slope stability analysis. At the same time, combined with the actual mine, the corresponding treatment suggestions for different types of slopes are put forward.
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董贺伟.基于极限平衡的不同类型边坡稳定性分析计算方法探讨[J].有色金属(矿山部分),2022,74(3):85-90.
DONG Hewei.Stability analysis and calculation methods for different slope types based on limit equilibrium theory[J].NONFERROUS METALS(Mining Section),2022,74(3):85-90.

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