尾矿坝加高渗流和液化稳定性分析
|
摘要
尾矿库加高扩容,需对尾矿坝进行稳定性评价。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,应用强度折减法进行了尾矿坝渗流稳定性、静力稳定性和动力液化稳定性计算。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是动力稳定的,安全系数满足规范要求。本研究基于有效应力原理,结果对尾矿坝渗流、静力及动力稳定性评价方面有一定的借鉴意义。
For the heightening designing of tailings dam,the dam's stability assessment is needed.In accordance with the borehole data,by combined with the heightening design scheme,the geological model of the tailings dam is established.Tailings dam's seepage stability,static stability,and dynamic stability under the flood and earthquake work condition are calculated.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 the static stability;dynamic responses and liquefaction results of the dam show that the dam is stable.A comprehensive assessment of the stability line is provided.It possesses certain significance in the evaluation of seepage,static stability,and dynamic stability based on the principle of effective stress.
For the heightening designing of tailings dam,the dam's stability assessment is needed.In accordance with the borehole data,by combined with the heightening design scheme,the geological model of the tailings dam is established.Tailings dam's seepage stability,static stability,and dynamic stability under the flood and earthquake work condition are calculated.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 the static stability;dynamic responses and liquefaction results of the dam show that the dam is stable.A comprehensive assessment of the stability line is provided.It possesses certain significance in the evaluation of seepage,static stability,and dynamic stability based on the principle of effective stress.
引文
[1]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.Journal of Liaoning Technical University,2008,27(3):359-361.
[2]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(1):21-27.Zhang Luyu,Zheng Yingren,Zhao Shangyi,et al.Journal of Hydraulic Engineering,2003(1):21-27.
[3]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,2006,25(S2):3730-3735.Zhang Chao,Yang Chunhe.Chinese Journal of Rock Mechanics and Engineering,2006,25(S2):3730-3735.
[4]李再光,罗晓辉.尾矿坝地震反应的拟静力稳定性分析[J].岩土力学,2006,27(7):1138-1142.Li Zaiguang,Luo Xiaohui.Rock and Soil Mechanics,2006,27(7):11381142.
[5]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.Journal of Hydraulic Engineering,2006,37(10):1224-1229.
[6]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.Liu Bo,Han Yanhui.FLAC principle,examples and application guide[M].Beijing:People's Traffic Press,2005.
[7]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.Mining Engineering,2010,8(2):44-47.
[8]Das B M.Advanced soil mechanics[M].New York:Taylor&Francis Publishing Company,2008.
[9]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.Journal of Hunan University of Science&Technology:Natural Science Edition,2005,20(2):58-61.
[2]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(1):21-27.Zhang Luyu,Zheng Yingren,Zhao Shangyi,et al.Journal of Hydraulic Engineering,2003(1):21-27.
[3]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,2006,25(S2):3730-3735.Zhang Chao,Yang Chunhe.Chinese Journal of Rock Mechanics and Engineering,2006,25(S2):3730-3735.
[4]李再光,罗晓辉.尾矿坝地震反应的拟静力稳定性分析[J].岩土力学,2006,27(7):1138-1142.Li Zaiguang,Luo Xiaohui.Rock and Soil Mechanics,2006,27(7):11381142.
[5]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.Journal of Hydraulic Engineering,2006,37(10):1224-1229.
[6]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.Liu Bo,Han Yanhui.FLAC principle,examples and application guide[M].Beijing:People's Traffic Press,2005.
[7]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.Mining Engineering,2010,8(2):44-47.
[8]Das B M.Advanced soil mechanics[M].New York:Taylor&Francis Publishing Company,2008.
[9]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.Journal of Hunan University of Science&Technology:Natural Science Edition,2005,20(2):58-61.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心