【摘要】 尾矿库坝体存在溃坝危险,所以尾矿库是一座重大危险源,在国际灾害事故排名中位列第18位。可见,对尾矿库坝安全进行研究,并加强监管和监控,对于防止尾矿库事故的发生,保证尾矿库安全运行是极其重要。本文采用MIDAS岩土工程分析软件,对元江尾矿库的大坝进行三维静力稳定性分析,研究其在静力作用下的位移、应力变化规律,从而判定其稳定性。三维分析时大坝在正常工况和洪水工况下,在洪水工况下的安全系数均大于规范所规定的最小安全系数要求,即满足规范要求,坝体稳定。更多还原

【Abstract】 Tailings reservoir dam body is in danger of dam failure, so tailings reservoir is a major hazard source, ranking 18 th in the international disaster accident ranking. It can be seen that it is extremely important to study the safety of tailings reservoir dam and strengthen supervision and monitoring in order to prevent tailings reservoir accidents and ensure the safe operation of tailings reservoir. In this paper, using MIDAS geotechnical analysis software, the three-dimensional static stability of the dam in Yuanjiang tailings reservoir is analyzed, and the displacement and stress variation of the dam under static force are studied, and its stability is determined. During the three-dimensional analysis, the safety factor of the dam under the normal working conditions and flood conditions is greater than the minimum safety factor required by the specification, that is, the requirements of the specification are met and the dam body is stable.更多还原