【摘要】 利用FLAC3D建立磷石膏尾矿库三维数值计算模型，基于Finn液化本构关系，使用FISH语言对FLAC3D进行二次开发以完成液化判定，采用完全非线性动力数值分析方法分析磷石膏尾矿库的地震液化问题，直观地展示了液化区域，研究了动力作用过程中液化特征及位移、有效应力、超孔压比的变化规律，研究成果对于磷石膏尾矿库的设计和安全运行具有重要的理论与实践意义。更多还原

【Abstract】 The three-dimensional numerical calculation model of phosphorus gypsum tailings is established using FLAC3D, the secondary development of FLAC3D with FISH language is carried out to complete the judgment of liquefaction based on the Finn liquefied constitutive relation. Completely nonlinear numerical analysis method is adopted to analyze the phosphorus gypsum tailings pond seismic liquefaction problem, and the liquefaction region is visually displayed. The change laws of liquefaction characteristics, displacement,effective stress and excess pore pressure ratio in the process of dynamic actions are studied, which has important theoretical and practical significance for the design and safe operation of phosphogypsum tailings ponds.更多还原