论文部分内容阅读
本文通过对马头门的破坏机理进行理论分析 ,采用三维弹塑性有限元方法模拟了马头门的支护 ,研究了三种支护情况下对马头门结构稳定性的影响 ,认为锚杆对围岩有不可忽视的加固作用 ,同时得出单一的刚性支护或柔性支护都不适用 ,比较理想的支护方式是先柔后刚的二次支护 ,所得结论为合理选择设计方案提供了理论依据 ,对工程的设计和施工具有一定的指导意义
In this paper, through the theoretical analysis of the failure mechanism of Matoumen, the three-dimensional elasto-plastic finite element method is used to simulate the support of Matoumen. The effects of three kinds of support on the stability of Matoumen are studied. The surrounding rock can not be ignored reinforcement, at the same time come to a single rigid support or flexible support are not applicable, the more ideal way of support is soft back just after the second support, the conclusions of the reasonable choice of design Provide a theoretical basis for the design and construction of the project has a certain significance