中文摘要：

针对深部巷道的变形特点,提出采用围岩渐进破坏的计算方法进行研究,通过对ANSYS进行二次开发,编制了基于围岩渐进破坏的有限元计算程序,然后根据平煤四矿地质资料建立模型进行计算分析。获得了有支护和无支护情况下顶板应力的变化过程,并结合帮部综合分析了围岩承载结构的演化规律。计算结果显示：围岩承载结构的演化具有明显的持续性和阶段性特征,无支护时可划分为调整变化阶段、稳定变化阶段和加速变化阶段,有支护时加速变化阶段转化为稳定阶段,帮部是承载结构演化的关键部位。由此说明：对深部巷道的支护需运用动态过程性原理对支护施工进行优化,并且注意对关键部位加强支护,从而实现深部巷道的长期稳定。

英文摘要：

The method for calculating the progressive failure of surrounding rocks is proposed aimed to the deformation features of deep tunnel.Finite element calculation program based on progressive failure is compiled through secondary development to ANSYS.Then calculation and analysis are carried out based on the geological data of the tunnel in the Fourth Mine belonging to the Pingdingshan Colliery Group Co.Ltd.The change process of roof stress is obtained in case of supporting and no supporting,and the bearing structure evolution is comprehensively analyzed combined with siding-walls.The calculation result shows that the supporting structure evolution has distinct durative and stage features.And the change process without supporting can be divided into adjusting process,steady process,and accelerating process.While supported,the accelerating process is transformed into steady stage,and the siding-wall is the key position of bearing structure evolution.Thus the support of deep tunnel should be optimized through the principle of dynamic process control,and reinforcing supporting should be made in those key positions,to obtain long-time stability of the deep tunnel.