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| SELECTION OF LIMIT EQUILIBRIUM METHODS IN THE DESIGN SPECIFITION FOR WASTE DUMP OF METAL MINE |
| LI Xiaochun1，REN Wei1，WANG Shaoquan2，WANG Haibin1，CUI Yinxiang1 |
| (1. State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，Wuhan，Hubei 430071，China；2. Northern Engineering and Technology Corporation，Metallurgical Corporation of China，Anshan，Liaoning 114009，China) |
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Abstract There are some controversies on the selection of stability calculation methods when preparing for the new specification of waste dump. We evaluate the accuracy and applicability of 7 limit equilibrium methods by using the difference percentage and standard deviation of safety factors in waste dump slope stability analysis. Combined with previous research，the application of limit equilibrium method in waste dump slope analysis is described. Ordinary method has a poor accuracy. The accuracy is larger than 30% and the standard deviation is large when dealing with ground water problem. Its calculation result can be used as a lower limit. Bishop method has an accuracy of 3.7% and good standard deviation，although only satisfying moment equilibrium. For the simple algorithm，it is recommended as a basic method. The correct values can be obtained from methods satisfying force and moment equilibrium，which applies to a variety of conditions.
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Received: 31 May 2011
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| [1] 曹 阳，黎剑华，颜荣贵，等. 超高台阶排土场建设决策研究与实践[J]. 岩石力学与工程学报，2002，21(12)：1 858–1 862.(CAO Yang，LI Jianhua，YAN Ronggui，et al. Practice and design study of building super-high bench dumping-site[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(12)：1 858–1 862.(in Chinese))
[2] 李根福. 土地复垦知识[M]. 北京：冶金工业出版社，1991：1–2.(LI Genfu. Knowledge of land reclamation[M]. Beijing：Metallurgical Industry Press，1991：1–2.(in Chinese))
[3] 武俊泽. 龙门山石灰石矿排土场场址选择[J]. 有色金属，2003，55(2)：119–126.(WU Junze. Earth dumping site selection for Lonymenshan himstone mine[J]. Nonferrous Metals，2003，55(2)：119–126.(in Chinese))
[4] 段喜明，王治国，宋震勇，等. 安太堡露天煤矿南排土场滑坡体稳定性及治理[J]. 土壤侵蚀与水土保持学报，1999，5(1)：86–91.(DUAN Ximing，WANG Zhiguo，SONG Zhenyong，et al. Stability and integral control measures on landslide of south-dump at Antaibao surface mine[J]. Journal of soil Erosion and Soil and Water Conservation，1999，5(1)：86–91.(in Chinese))
[5] 方普先，刘寒松. 德兴铜矿水龙山边坡上部排土场泥石流的治理[J]. 金属矿山，1998，(9)：45–47.(FANG Puxian，LIU Hansong. The governance of debris on shui long shan upper waste dump in Dexing copper mine[J]. Metal Mine，1998，(9)：45–47.(in Chinese))
[6] 张 玉，杨志双，张 瑛，等. 本溪南芬铁矿排土场滑坡稳定性研究[J]. 地质与资源，2008，17(1)：50–52.(ZHANG Yu，YANG Zhishuang，ZHANG Ying，et al. Study on the stability and landslide control of the dumping ground in Nanfen iron mine[J]. Geolog and Resources，2008，17(1)：50–52. (in Chinese))
[7] 王振伟，朱新平. 黑岱沟露天矿阴湾排土场稳定性分析[J]. 露天采矿技术，2005，3(1)：19–23.(WANG Zhenwei，ZHU Xinping. Stability analysis of Yinwan waste dump in Heidaigou open mine[J]. Opencast Mining Technology，2005，3(1)：19–23.(in Chinese))
[8] 中华人民共和国国家标准编写组. GB 50421—2007 有色金属矿山排土场设计规范[S]. 北京：中国计划出版社，2007.(The National Standards Compilation Group of People?s Republic of China，GB 50421—2007 Code for waste dump design of nonferrous metal mines[S]. Beijing：China Planning Press，2007.(in Chinese))
[9] 中华人民共和国国家标准编写组. GB 50330—2002 建筑边坡工程技术规范[S]. 北京：中国建筑工业出版社，2002. (The National Standards Compilation Group of People?s Republic of China，GB 50330—2002 Technical code for building slope engineering[S]. Beijing：China Building Industry Press，2002.(in Chinese))
[10] FREDLUND D G，KRAHN J. Comparison of slope stability methods of analysisr[J]. Can Geotech，1977，14(5)：429–439.
[11] DUNCAN J M. State of the art：limit equilibrium and finite-element analysis of slopes[J]. Journal of Geotechnical Engineering，1996，122(7)：577–596.
[12] DUNCAN J M，WRIGHT S G. The accuracy of equilibrium methods of slope stability analysis[J]. Engineering Geology，1980，(16)：5–17.
[13] 陈祖煜. 极限平衡方法土质边坡稳定分析——原理•方法•程序[M]. 北京：中国水利水电出版社，2003：120–123.(CHEN Zuyu，Soil slope stability anlysis—theory，methods and programs[M]. Beijing：China Water Power Press，2003：120–123.(in Chinese))
[14] 周胜利，房定旺. 姑山矿软土地基排土场结构参数的确定[J]. 金属矿山，2000，(4)：32–34.(ZHOU Shengli，FANG Dingwang，Determination of the structural parameers of the soft earth-foundation dump in gushan mine[J]. Metal Mine，2000，(4)：32–34.(in Chinese))
[15] 周玉新，周志芳. 有限分析法在排土场渗流分析中的应用[J]. 金属矿山，2001，(10)：18–21.(ZHOU Yuxin，ZHOU Zhifang. Application of finite analytic method in analyzing the infiltration of dumping sites[J]. Metal Mine，2001，(10)：18–21.(in Chinese))
[16] 李志刚，曹 磊. 严格Janbu法不收敛原因及其改进的探讨[J]. 岩土力学，2008，29(4)：1 053–1 056.(LI Zhigang，CAO Lei. Discussion on cause of non-convergence in rigorous Janbu method and its modification[J]. Rock and Soil Mechanics，2008，229(4)：1 053– 1 056.
[17] 中华人民共和国专业标准编写组. SL 386—2007 水利水电工程边坡设计规范[S]. 北京：中国水利水电出版社，2007.(The National Standards Compilation Group of People?s Republic of China，SL386—2007 Design code for engineering slopes in water resources and hydropower projects. Beijing：China Water Power Press，2007 (in Chinese)) |
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2011, Vol. 30 
