【摘要】 库水位对尾矿库的安全运行至关重要,特别是对于高地震烈度区,其液化、稳定问题关系到尾矿库的安全运行,而库水位是其中最关键的控制因素。为了解坝体在地震作用下的稳定性,采用动力时程有限元方法,对正常水位及洪水位运行工况下的坝体动力特性进行模拟,给出坝体在静力条件下的渗流场及动力液化区,分析比较了两种工况下库水位对坝体液化区的影响。研究成果对尾矿坝的安全运行具有指导意义。更多还原

【Abstract】 The water level is essential to the operation of the tailing spond,especially for areas of high seismic intensity.The liquefaction,stability issues of these areas related to the safe operation of the tailing spond,and the water level is the most critical control factors.To understand the seismic stability of the dam,dynamic time-history finite element method is used in the paper.The seepage and dynamic liquefaction zone of the dam is given by simulating the dynamic characteristics of the dam in normal water level and flood conditions.The impacts of water level on the dam area of liquefaction in the two different conditions are analyzed and compared.The research is instructive on the safe operation of the tailing dam.更多还原