It is found that the boundary element method has many advantages over the finite element method and that the longitudinal stress affecting the stability of rock masses varies evidently along the boundary of an arch drift.

• 曾经发现,边界元法与有限元法相比,具有不少优点,巷道纵向应力沿巷道周边变化明显,而且这一中间主应力对岩体的稳定是有影响的