风水沟尾矿坝加高稳定性及液化分析
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摘要
目的评价尾矿库加高扩容后坝的稳定性.方法依钻孔资料,结合加高设计方案,建立尾矿坝地质模型.对洪水及地震作用双重工况下,应用有效应力原理进行了尾矿坝渗流稳定性、静力稳定性和动力稳定性计算.结果结果表明:浸润线没有从坝坡出溢,渗流稳定.从坝体动力反应及液化结果得出该坝动力稳定,安全系数满足规范要求.结论有效应力原理对尾矿坝在渗流、静力及动力稳定性评价方面有一定的借鉴意义,为类似的尾矿坝稳定性评价提供了一套完整的方法.
The purpose of this paper is to research the dam's stablity assessment of the tailings dam's heightening design.Combining the borehole data and heightening design scheme,the research establishes the geological model of the tailings dam and also calculates the tailings dam seepage stability,the static stability and the dynamic stability under the flood and earthquake work condition.The results show that there is no infiltration of the overflow from the slope and the seepage is stable;The Safety factor meets the regulatory requirements and the dam is in static stability;Dynamic responses and liquefaction results of the dam show that the dam is stable.The study provides a comprehensive assessment of the stability line.This paper has certain significance in seepage,static and the dynamic stability evaluation using the principle of effective stress.
The purpose of this paper is to research the dam's stablity assessment of the tailings dam's heightening design.Combining the borehole data and heightening design scheme,the research establishes the geological model of the tailings dam and also calculates the tailings dam seepage stability,the static stability and the dynamic stability under the flood and earthquake work condition.The results show that there is no infiltration of the overflow from the slope and the seepage is stable;The Safety factor meets the regulatory requirements and the dam is in static stability;Dynamic responses and liquefaction results of the dam show that the dam is stable.The study provides a comprehensive assessment of the stability line.This paper has certain significance in seepage,static and the dynamic stability evaluation using the principle of effective stress.
引文
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[5]李鸿儒,胡再强,陈存礼,等.金堆城尾矿坝加高方案数值模拟及稳定性分析[J].岩土力学,2008,29(4):1138-1142.(Li Hongru,Hu Zaiqiang,Chen Cunli,et al.Numeri-cal simulation and slope stability analysis in Jing-duicheng tailings dam to be designed to increase thedam height[J].Rock and Soil Mechanics,2008,29(4):1138-1142.)
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[7]陈殿强,王来贵,李根,等.尾矿坝稳定性分析[J].辽宁工程技术大学学报,2008,27(3):359-361.(Chen Dianqiang,Wang Laigui,Li Gen,et al.Tail-ing-dam stability analysis[J].Journal of LiaoningTechnical University,2008,27(3):359-361.)
[8]张鲁渝,郑颖人,赵尚毅,等.有限元强度折减系数法计算土坡稳定安全系数的精度研究[J].水利学报,2003,22(1):21-27.(Zhang Luyu,Zhang Yingren,Zhao Shangyi,et al.The feasibility study of strength-reduction methodwith FEM for calculating safety factors of soil slopestability[J].Journal of Hydraulic Engineering,2003,22(1):21-27.)
[9]张超,杨春和.尾矿坝液化判别简化方法研究[J].岩石力学与工程学报,2006,S(2):3730-3735.(Zhang Chao,Yang Chunhe.Study on a simplifiedprocedure for evaluating liquefaction potential oftailings dam[J].Chinese Journal of Rock Mechanicsand Engineering,2006,S(2):3730-3735.)
[10]李再光,罗晓辉.尾矿坝地震反应的拟静力稳定分析[J].岩土力学学报,2006,27(7):1138-1142.(Li Zaiguang,Luo Xiaohui.Equivalent static stabili-ty analysis of earthquake response of tailings dam[J].Rock and Soil Mechanics,2006,27(7):1138-1142.)
[11]潘建平,孔宪京,邹德高.尾矿坝地震液化稳定的简化分析[J].水利学报,2006,37(10):1224-1229.(Pan Jianping,Kong Xianjing,Zou Degao.Simpli-fied analysis of liquefaction and stability of tailingdam during earthquake[J].Journal of Hydraulic En-gineering,2006,37(10):1224-1229.)
[12]Vick S G.Tailings dam failure at Omai in Guyana[J].Mining Engineering,1996,48(11):34-37.
[13]刘波,韩彦辉.FLAC原理、实例与应用指南[M].北京:人民交通出版社,2005.(LiuBo,HanYanHui.FLAC principle,examples andapplication guide[M].Beijing:China Communica-tions Press,2005.)
[14]吴邦强,吴仲雄.尾矿库安全运行及其评价[J].矿业工程,2010,8(2):44-47.(Wu Bangqiang,Wu Zhongxiong.Safe operation oftailings reservoir and assessment of its safety[J].Mining Engineering,2010,8(2):44-47.)
[15]楼建东,李庆耀,陈宝.某尾矿坝数值模拟与稳定性分析[J].湖南科技大学学报:自然科学版,2005,20(2):58-61.(Lou Jiandong,Li Qingyao,Chen Bao.Tailing-dam math simulation and stability analysis[J].Jour-nal of Hunan University of Science&Technology:Natural Science Edition,2005,20(2):58-61.)
[16]Das B M.Adcanced soil mechanics[M].New York:Taylor﹠Francis Publishing Company,2008.
[2]李全明,王云海,张兴凯,等.尾矿库溃坝灾害因素分析及风险指标体系研究[J].中国安全生产科学技术,2008,4(3):50-54.(Li Quanming,Wang Yunhai,Zhang Xingkai,et al.Analysis of disastrous factors concerning tailing damfailing and research on risk index system[J].Journalof Safety Science and Technology,2008,4(3):50-54.)
[3]田文旗,谢旭阳.我国尾矿库现状及安全对策的建议[J].中国安全科学学报,2009,38(6):42-44.(Tian Wenqi.Tailings pond situation in China andsafety countermeasures suggestion[J].China SafetyScience Journal,2009,38(6):42-44.)
[4]Anon A.Review of tailings dam failures[J].Interna-tional Water Power and Dam Construction,2001,53(5):40-42.
[5]李鸿儒,胡再强,陈存礼,等.金堆城尾矿坝加高方案数值模拟及稳定性分析[J].岩土力学,2008,29(4):1138-1142.(Li Hongru,Hu Zaiqiang,Chen Cunli,et al.Numeri-cal simulation and slope stability analysis in Jing-duicheng tailings dam to be designed to increase thedam height[J].Rock and Soil Mechanics,2008,29(4):1138-1142.)
[6]赵坚,纪伟,刘志敏.尾矿坝地质剖面概化及其对渗流场计算的影响[J].金属矿山,2003(12):24-27.(Zhao Jian,Ji Wei,Liu Zhimin.Surveying of geo-logical sections of tailings dams and its effect onseepage field calculation[J].Metal Mine,2003(12):24-27.)
[7]陈殿强,王来贵,李根,等.尾矿坝稳定性分析[J].辽宁工程技术大学学报,2008,27(3):359-361.(Chen Dianqiang,Wang Laigui,Li Gen,et al.Tail-ing-dam stability analysis[J].Journal of LiaoningTechnical University,2008,27(3):359-361.)
[8]张鲁渝,郑颖人,赵尚毅,等.有限元强度折减系数法计算土坡稳定安全系数的精度研究[J].水利学报,2003,22(1):21-27.(Zhang Luyu,Zhang Yingren,Zhao Shangyi,et al.The feasibility study of strength-reduction methodwith FEM for calculating safety factors of soil slopestability[J].Journal of Hydraulic Engineering,2003,22(1):21-27.)
[9]张超,杨春和.尾矿坝液化判别简化方法研究[J].岩石力学与工程学报,2006,S(2):3730-3735.(Zhang Chao,Yang Chunhe.Study on a simplifiedprocedure for evaluating liquefaction potential oftailings dam[J].Chinese Journal of Rock Mechanicsand Engineering,2006,S(2):3730-3735.)
[10]李再光,罗晓辉.尾矿坝地震反应的拟静力稳定分析[J].岩土力学学报,2006,27(7):1138-1142.(Li Zaiguang,Luo Xiaohui.Equivalent static stabili-ty analysis of earthquake response of tailings dam[J].Rock and Soil Mechanics,2006,27(7):1138-1142.)
[11]潘建平,孔宪京,邹德高.尾矿坝地震液化稳定的简化分析[J].水利学报,2006,37(10):1224-1229.(Pan Jianping,Kong Xianjing,Zou Degao.Simpli-fied analysis of liquefaction and stability of tailingdam during earthquake[J].Journal of Hydraulic En-gineering,2006,37(10):1224-1229.)
[12]Vick S G.Tailings dam failure at Omai in Guyana[J].Mining Engineering,1996,48(11):34-37.
[13]刘波,韩彦辉.FLAC原理、实例与应用指南[M].北京:人民交通出版社,2005.(LiuBo,HanYanHui.FLAC principle,examples andapplication guide[M].Beijing:China Communica-tions Press,2005.)
[14]吴邦强,吴仲雄.尾矿库安全运行及其评价[J].矿业工程,2010,8(2):44-47.(Wu Bangqiang,Wu Zhongxiong.Safe operation oftailings reservoir and assessment of its safety[J].Mining Engineering,2010,8(2):44-47.)
[15]楼建东,李庆耀,陈宝.某尾矿坝数值模拟与稳定性分析[J].湖南科技大学学报:自然科学版,2005,20(2):58-61.(Lou Jiandong,Li Qingyao,Chen Bao.Tailing-dam math simulation and stability analysis[J].Jour-nal of Hunan University of Science&Technology:Natural Science Edition,2005,20(2):58-61.)
[16]Das B M.Adcanced soil mechanics[M].New York:Taylor﹠Francis Publishing Company,2008.
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