不同排水条件下非饱和土中柱孔扩张问题的解析分析1)
周凤玺, 牟占霖, 杨汝贤, 张雅森

ANALYTICAL ANALYSIS ON THE EXPANSION OF CYLINDRICAL CAVITY IN UNSATURATED SOILS UNDER DIFFERENT DRAINAGE CONDITIONS1)
Zhou Fengxi, Mu Zhanlin, Yang Ruxian, Zhang Yasen
图19 不同初始径向有效应力下最大塑性区半径和参数$b$之间的变化
Fig.19 Change between the maximum plastic zone radiu and $b$ under different initial radial effective stress