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矿山废石堆场存在较大的安全隐患，需进行合理的设计与及时开展稳定性评价。使用简化的Bishop方法、MP方法（Morgenstern-Price method）、基于有限元应力方法和优化的有限元应力方法等四种方法，针对表观内聚力、堆场形状设计、废石性质和基质吸力等因素，开展废石边坡稳定性数值模拟研究。结果表明：安全系数与内摩擦角和表观内聚力呈正相关，而与废石堆场高度呈负相关，压实的废石层会略微增加边坡的安全系数。但需要注意在真实可变的内摩擦角条件下，边坡安全系数会随着深度的增加而减小，应在边坡设计中予以考虑。模拟结果考虑多种因素对矿山废石堆场的稳定性的影响，对堆场边坡设计有指导意义。
Abstract：The great potential safety concerns in the mine waste rock stockpile requires reasonable design and timely stability evaluation. The parametric analysis on the stability of waste rock stockpile based on numerical simulations was carried out. Four methods,including simplified Bishop method,MP method （Morgenstern-Price method）,finite element stress method and optimized finite element stress method,were used to identify relevant factors that accounted for slope stability of stockpile,which included the apparent cohesion,stockpile shape design,waste rock properties and matrix suction.The results show that the factor of safety （Fs） is positively correlated with the internal friction angle and apparent cohesion,but negatively related with the height of the waste rock stockpile. The compacted waste rock layer will slightly increase Fs of the slope. However,it should be noted that under the condition of real and variable internal friction angle,the Fs will decrease with the increase of depth,which should be considered in the slope design. The simulation result considered the effects of various factors on the stability of waste rock stockpile,which is of guiding significance for the slope design of the stockpile.
[1]金灵灵.我国矿山环境问题及法制建设探讨：以尾矿和采矿废石为例[J].中国矿业，2011,20(10):40-42.JIN Lingling. Discussion on my country′s mine environmental problems and legal system construction:taking tailings and mining waste rock as examples[J]. China Mining Magazine,2011,20(10):40-42.
[2]王旭，杨志一，马增，等.软破岩质高陡边坡治理方案优化研究[J].有色金属（矿山部分），2024,76(2):102-107,119.WANG Xu,YANG Zhiyi,MA Zeng,et al. Optimization of treatment scheme for high and steep slope with soft broken rck[J]. Nonferrous Metals （Mining Section）,2024,76(2):102-107,119.
[3]高庆，杨润基，卢许佳，等.降雨及爆破扰动下某露天矿山顺层高陡岩质边坡稳定性的影响及优化[J].有色金属（矿山部分），2023,75(4):52-57.GAO Qing,YANG Runji,LU Xujia,et al. Influence and optimization of the stability of high and steep rock slope in an open pit mine under blasting and rainfall disturbance[J].Nonferrous Metals （Mining Section）,2023,75(4):52-57.
[4]彭国诚，李昊，杨泽，等.某矿山山坡型废石场边坡稳定性分析[J].昆明冶金高等专科学校学报，2019,35(4):24-28.PENG Guocheng,LI Hao,YANG Ze,et al. Slope stability analysis of a mine hillside waste rock field[J]. Journal of Kunming Metallurgical College,2019,35(4):24-28.
[5]焦文宇，周国军，陶雪芬.某矿山废石堆边坡稳定性分析[J].采矿技术，2010,10(6):33-35.JIAO Wenyu,ZHOU Guojun,TAO Xuefen. Stability analysis of the slope of waste rock heap in a mine[J]. Mining Technology,2010,10(6):33-35.
[6]谢晓云，陈文青.浅议紫金山金矿废石堆场边坡治理[J].有色金属（矿山部分），2004,56(6):30-31.XIE Xiaoyun,CHEN Wenqing. Discussion on slope treatment of waste rock yard in Zijinshan gold mine[J]. Nonferrous Metals （Mining Section）,2004,56(6):30-31.
[7] VAN GENUCHTEN M T. A closed-form equation for predicting the hydraulic conductivity of unsaturated soils[J].Soil Science Society of America Journal,1980,44(5):892-898.
[8] MUALEM Y. A new model for predicting the hydraulic conductivity of unsaturated porous media[J]. Water Resources Research,1976,12(3):513-522.
[9] MCCARTHY D F. Essentials of soil mechanics and foundations[M]. Virginia:Reston Publishing Company,1977.
[10] MBONIMPA M,AUBERTIN M,CHAPUIS R P,et al.Practical pedotransfer functions for estimating the saturated hydraulic conductivity[J]. Geotechnical&Geological Engineering,2002,20:235-259.
[11]吴泽鑫，张成良，张华超，等.基于SSA-BP的露天矿山边坡位移变形预测[J].有色金属工程，2024,14(6):125-133.WU Zexin,ZHANG Chengliang,ZHANG Huachao,et al.Research on slope displacement prediction of open-pit mine based on SSA-BF[J]. Nonferrous Metals Engineering,2024,14(6):125-133.
[12] TRUTY A,OBRZUD R. Improved formulation of the hardening soil model in the context of modeling the undrained behavior of cohesive soils[J]. Studia Geotechnica et Mechanica,2015,37(2):61-68.
[13] KéZDIá，RéTHáTI L. Handbook of soil mechanics[M].Amsterdam:Elsevier,1974.
[14]陈希哲.土力学地基基础[M].北京：清华大学出版社有限公司，1998.CHEN Xizhe. Soil mechanical foundation[M]. Beijing:Tsinghua University Press Co.,LTD.,1998.
基本信息:
DOI：10.20238/j.issn.1671-4172.2025.01.017
中图分类号:TD804
引用信息:
[1]许文浒,叶永飞.矿山废石堆场边坡稳定性影响因素研究[J].有色金属(矿山部分),2025,77(01):143-152.DOI:10.20238/j.issn.1671-4172.2025.01.017.
2025-01-15
2025-01-15