露天采矿技术2026，Vol.41Issue(4)：24-28,5.DOI:10.13235/j.cnki.ltcm.20260017
扎尼河露天矿西外部排土场泥岩含水率临界阈值与边坡稳定性研究
Study on critical threshold of mudstone water content and slope stability in Zhanihe Open-pit Mine western external dump
摘要
Abstract
To address the stability hazards caused by fluctuations in mudstone water content on the soft rock basement slope of the western external dump of Zhanihe Open-pit Mine,and to clarify the influence mechanism of water content on slope stability and the corresponding quantitative control criteria,this article adopts a combined approach of linear and nonlinear fitting,the Morgenstern-Price limit equilibrium method and on-site verification based on geotechnical mechanical test data and on-site monitoring data.The article systematically investigates the correlation between mudstone water content and shear strength parameters,quantifies the influence law of water content on the slope stability coefficient,and determines the critical water content threshold for slope stability.The results show that mudstone water content has a significant negative correlation with its mechanical parameters,and the critical water content threshold for the slope stability of the western external dump of Zhanihe Open-pit Mine is 27％.关键词
排土场/泥岩含水率/抗剪强度/边坡稳定性/临界阈值Key words
dump/mudstone water content/shear strength/slope stability/critical threshold分类
矿业与冶金引用本文复制引用
沈昊文,韩猛,封海洋,李金典..扎尼河露天矿西外部排土场泥岩含水率临界阈值与边坡稳定性研究[J].露天采矿技术,2026,41(4):24-28,5.基金项目
国家重点研发计划资助项目(2023YFF1306001) （2023YFF1306001）
中国煤炭科工集团有限公司科技创新创业资金专项资助项目(2025-QZ006) （2025-QZ006）
