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本文提出了具有三组节理的岩体的弹塑性和弹—粘塑性有限元算法。由于考虑了节理间距和变形引起的岩体结构的改变,提出的模型比一般的“多层模型”更好地反映了节理岩体的变形特点。所得的结果可推广到具有任意组节理的岩体中去。
This paper presents the elastoplastic and elasto-viscoplastic finite element method for rock masses with three joints. Due to the consideration of rock structure changes caused by joint spacing and deformation, the proposed model better reflects the deformation characteristics of the jointed rock mass than the general “multi-layer model”. The results obtained can be extended to rock masses with any set of joints.