【摘要】 首次采用非连续变形分析 (DDA) ,分别对挖动岩体结构中的“三咬拱”与“咬合梁”结构模式、形态、位移与关键层进行动态模拟。得出一些有意义的结论更多还原

【Abstract】 The Discontinuous Deformation Analysis(DDA)is first adopted into dynamic modeling of the structural patterns,forms,displacement and key stratum for arches withthree grips’and ‘grip beams’in excavated rockmass,and some significant conclusions are reached.更多还原