以窑街三矿 1 50 0混凝土结构副大巷多层急倾斜煤岩层中复杂结构为研究对象 ,应用三维有限元模型 ,结合现场矿压观测结果和相似材料模拟试验结果 ,对该巷道内部应力破坏敏感部位的内力和变形机理进行了系统的研究 ,得到了非常直观的可视化计算结果 ,这对现场支护设计、维护加固和提高岩层的“凝聚力”具有重要的意义 Taking the complex structure of multi-steeply steep coal seam in 1 50 0 concrete structure of Yajie Street No. 3 Mine as the research object, this paper applies the three-dimensional finite element model and the on-site observation data of rock pressure and the simulation results of similar materials to study the internal stress The internal forces and deformation mechanism that undermine the sensitive parts have been studied systematically and the visual calculation results have been obtained very intuitively, which is of great significance to the design, maintenance and reinforcement of on-site support and the improvement of “cohesion” of rock strata.