御驾泉尾矿坝稳定性计算与分析
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摘要
在查明御驾泉尾矿坝工程地质条件的基础上,采用极限平衡法和快速拉格朗日法计算了坝体标高334 m时在正常运行、洪水运行和特殊运行工况下的稳定系数。结果表明坝体是安全的,但是在特殊运行(地震条件)工况下的稳定系数并不高,仅为1.06,所以需要注意防范尾矿坝在特殊运行工况下发生坝体失稳事件。
Based on the investigation of the Engineering Geological Conditions,the stability coefficient of the Yujiaquan tailing dam when dam body in 334 m under normal situation,flood situation and special situation is respectively calculated by limit equilibrium method and Fast Lagrangian Analysis of Continua method(FLAC).The result indicated that the tailing dam was safe in these situation,but the stability coefficient in special situation was only 1.06,just satisfy the requirement of 1.05,therefore,it should pay more attention to the tailing dam stability in special situation(earthquake).
Based on the investigation of the Engineering Geological Conditions,the stability coefficient of the Yujiaquan tailing dam when dam body in 334 m under normal situation,flood situation and special situation is respectively calculated by limit equilibrium method and Fast Lagrangian Analysis of Continua method(FLAC).The result indicated that the tailing dam was safe in these situation,but the stability coefficient in special situation was only 1.06,just satisfy the requirement of 1.05,therefore,it should pay more attention to the tailing dam stability in special situation(earthquake).
引文
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[2]胡明鉴,陈守义,郭爱国,等.某上游法尾矿坝抗滑稳定性浅[J].岩土力学,2003,32(2)44-46.
[3]魏勇,许开立,郑欣.浅析国内外尾矿坝事故及原因[J].金属矿山,2009(7):139-142.
[4]王炳文,张磊,赵彦昌,等.基于FLAC3D的尾矿库地震稳定性分析[J].金属矿山(4):159-162
[5]国家安全生产监督管理总局.AQ2006—2005尾矿库安全技术规程[S].北京:煤炭工业出版社,2006.
[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.
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