| 米箭沟尾矿坝加高方案渗流场数值分析 |
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| 引用本文： | 柴军瑞,李守义,李康宏,何萌,邓祥辉.米箭沟尾矿坝加高方案渗流场数值分析[J].岩土力学,2005,26(6):973-977. |
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| 作者姓名： | 柴军瑞 李守义 李康宏 何萌 邓祥辉 |
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| 作者单位： | 1.三峡大学 土木水电学院，湖北 宜昌 443002；2.西安理工大学 水电学院，陕西 西安 710048；3.四川大学 水电学院，四川 成都 610065 |
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| 基金项目： | 国家自然科学科学基金资助项目(10202015),三峡大学湖北省“楚天学者计划”特聘教授资助项目(8096),教育部留学回国人员科研启动基金资助项目(106-220331),陕西省教育厅自然科学专项研究计划项目(03JK098),三峡大学科技创新团队资助项目(603402),西安理工大学科技创新研究计划项目(106-210303,220275),湖北省青年杰出人才基金项目(2004ABB012)。 |
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| 摘 要： | 米箭沟尾矿坝为了进行加高设计而进行了尾矿库区的地质钻孔勘探。基于实际钻孔勘探成果的最佳反演分析各分区-尾矿砂、风化岩体和初期坝堆石体的模型渗透参数和加高设计方案，采用三维有限元数值计算方法，应用自主开发的3D-Seepage-Stress程序进行了该尾矿坝加高后渗流场数值分析，得出渗流场各要素分布图。可以看出，在此加高方案下，尾矿坝库区浸润线和溢出点都很高，不利于尾矿坝的稳定安全和运行管理。为此提出了在加高方案设计中加强排渗设施设计的初步方案与建议。
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| 关 键 词： | 尾矿坝 加高设计 渗流场 有限元 |
| 文章编号： | 1000-7598-(2005)06-0973-05 |
| 收稿时间： | 2004-05-28 |
| 修稿时间： | 2004年5月28日 |
Numerical analysis of seepage field in Mijiangou tailings dam to be designed to increase the dam height |
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| CHAI Jun-rui,LI Shou-yi,LI Kang-hong,HE Meng,DENG Xiang-hui.Numerical analysis of seepage field in Mijiangou tailings dam to be designed to increase the dam height[J].Rock and Soil Mechanics,2005,26(6):973-977. |
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| Authors: | CHAI Jun-rui LI Shou-yi LI Kang-hong HE Meng DENG Xiang-hui |
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| Institution: | 1.College of Civil and Hydropower Engineering, China Three Gorges University, Yichang 443002, China; 2.College of Hydroelectric Engnineering, Xi’an University of Technology, Xi’an 710048, China; 3.College of Hydroelectric Engnineering, Sichuan University, Chengdu 610065, China |
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| Abstract: | The engineering geological drilling exploration is carried out in the Mijiangou tailings dam area to serve the heightening design of enlarging its volume. According to the permeability parameters of the three zones, the tailing sand, the weathered rock mass and the rockfill of initial dam, determined by the inverse analysis based on the drilling exploration results and the heightening design plan, the seepage field in the heightened dam area is analyzed to get its distribution. The applied numerical method is the finite element one and the software is 3D-Seepage-Stress developed by the authors. It can be concluded that both the seepage free surface and the overflow point are very high under the heightening design plan, which is not profitable for dam stability and management. Also, the measures of drain pipes in the design of enlarging the volume are proposed. |
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| Keywords: | tailings dam heightening design seepage field FEM |
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