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上游式尾矿坝的固结及静动力稳定分析

胡再强, 于淼, 李宏儒, 张壮

胡再强, 于淼, 李宏儒, 张壮. 上游式尾矿坝的固结及静动力稳定分析[J]. 岩土工程学报, 2016, 38(z2): 48-53. DOI: 10.11779/CJGE2016S2008
引用本文: 胡再强, 于淼, 李宏儒, 张壮. 上游式尾矿坝的固结及静动力稳定分析[J]. 岩土工程学报, 2016, 38(z2): 48-53. DOI: 10.11779/CJGE2016S2008
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HU Zai-qiang, YU Miao, LI Hong-ru, ZHANG Zhuang. Consolidation and static-dynamical stability of upstream tailings dam[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 48-53. DOI: 10.11779/CJGE2016S2008
Citation: HU Zai-qiang, YU Miao, LI Hong-ru, ZHANG Zhuang. Consolidation and static-dynamical stability of upstream tailings dam[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 48-53. DOI: 10.11779/CJGE2016S2008
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上游式尾矿坝的固结及静动力稳定分析  English Version

  • 西安理工大学土木建筑工程学院,陕西 西安 710048

基金项目: 陕西省科技统筹创新工程重点实验室项目（2014SZS15-Z02）
详细信息
    作者简介:

    胡再强(1964-),男,博士,教授,博士生导师,主要从事黄土力学与工程及数值计算方面的工作。E-mail: huzq@xaut.edu.cn。

Consolidation and static-dynamical stability of upstream tailings dam

  • School of Civil Engineering and Architecture,Xian University of Technology, Xi'an 710048, China

摘要

    摘要
  • 摘要: 结合四方金矿尾矿库工程项目研究碎石桩加固初期坝地基对坝体稳定性的影响。首先,采用限动层加振冲碎石桩的方案对初期坝地基进行加固,并通过排水固结法计算了碎石桩在不同深度时,固结度随时间的变化规律,确定了最优的加固方案;其次,基于实际工程地质勘察和室内试验的研究成果,利用SEEP3D反演分析了其渗流结果;最后,采用基于有效应力法的EFES-3D计算程序对尾矿库初期坝地基在碎石桩加固前后进行了静动力计算和坝坡稳定性分析。可以看出,利用碎石桩加固初期坝可以使坝体沉降量增大,坝坡顺河向位移减小,并且降低了坝体液化的可能性,使坝体的抗滑稳定明显提高。
    Abstract: The influence of gravel pile foundation reinforcement for the initial tailing dam of goldmine of Sifang Company on the dam stability is investigated. First, the foundation of the initial tailings dam is strengthened by combining the stopper layer with the gravel pile reinforcing system. The variation of the degree of consolidation with time for the gravel pile at different depths is revealed using the drainage consolidation method. The optimal reinforcing scheme is proposed. Second, based on the actual and experimental data, the seepage behavior is analyzed inversely by means of SEEP3D. Furthermore, by using the effective stress method in the EFES-3D software, static and dynamic stability of the dam is calculated and the slope stability is analyzed. The results show that gravel pile foundation reinforcement may lead to increase of the settlement and decrease of the dam slope displacement. It provides a method for reducing the possibility of the dam liquefaction and improving the stability against sliding of tailings dam.
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    • 参考文献(10)
  • [1] 沈楼燕, 魏作安. 探讨矿山尾矿库闭库的一些问题[J]. 金属矿山, 2002, 6: 47-48. (SHEN Lou-yan, WEI Zuo-an. On problems in the closure of tailings dames[J]. Metal Mine, 2002, 6: 47-48. (in Chinese))
    [2] 赵 坚, 纪 伟, 刘志敏. 等. 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 Zhi-min, et al. Surveying of geological sections of tailings dams and its effect on seepage field calculation[J]. Metal Mine, 2003(12): 24-27. (in Chinese))
    [3] 李宏儒, 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(4): 1138-1142. (LI Hong-ru, HU Zai-qiang, CHEN Cun-li, et al. Numerical simulation and slope stability analysis in Jinduicheng tailings dam to be designed to increase the dam height[J]. Rock and Soil Mechanics, 2008(4): 1138-1142. (in Chinese))
    [4] 尹光志, 余 果, 张东明. 细粒尾矿库地下渗流场的数值模拟分析[J]. 重庆大学学报(自然科学版), 2005(6): 81-83. (YIN Guang-zhi, YU Guo, ZHANG Dong-ming. Numerical calculation analysis about seepage field of fine grained tailings pool[J]. Journal of Chongqing University (Natural Science Edition), 2005(6): 81-83. (in Chinese))
    [5] 倪尤运, 林启祥, 吴光富, 等. 浸润线对上游法尾矿坝地震液化区影响[J]. 现代矿业, 2011(6): 109-111. (NI You-yun, LIN Qi-xiang, WU Guang-fu, et al. The influence of saturation line to earthquake liquefaction area of upstream method tailings dam[J]. Express Information of Mining Industry, 2011(6): 109-111. (in Chinese))
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    [7] 孟庆山, 王吉利, 汪 稔, 等. 采用不同加固方案处理软土地基的对比研究[J]. 岩土力学, 2002, 23(3): 375-377, 381. (MENG Qing-shan, WANG Ji-li, WANG Ren, et al. Contrast study on consolidation of softclay foundation with different methods[J]. Rock And Soil Mechanic, 2002, 23(3): 375-377, 381. (in Chinese))
    [8] 张平仓, 汪 稔. 强夯法施工实践中加固深度问题浅析[J].岩土力学, 2000, 21(1): 76-80. (ZHANG Ping-cang, WANG Ren. A study of dynamic consolidation depth in engineering practice[J]. Rock And Soil Mechanics, 2000, 21(1): 76-80. (in Chinese))
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    [10] 路美丽, 崔 莉. 复杂地形尾矿坝的三维渗流分析[J]. 岩土力学, 2006, 27(7): 1177-1180. (LU Mei-li, CUI Li. Three-dimensional seepage analysis for complex topographical tailings dam[J]. Rock and Soil Mechanics, 2006, 27(7): 1177-1180. (in Chinese))
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出版历程
  • 收稿日期:  2016-05-18
  • 发布日期:  2016-10-19

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