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引入断裂力学原理，以某混凝土结构副大巷中复杂结构为研究对象，通过相似模拟实验和现场观测等手段对有关材料物理力学参数进行识别和修正，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分析、模拟计算．研究结果对现场支护设计、维护加固和提高岩层稳定程度具有重要的意义．
By introducing the principle of fracture mechanics, taking the complex structure of the auxiliary lanes of a concrete structure as the research object, the physical and mechanical parameters of the related materials are identified and corrected by means of similar simulation experiments and field observations. Combined with the results of on-site rock pressure observation and similar material simulation As a result, the internal forces and deformation mechanisms of the stress-sensitive interior of the roadway are systematically analyzed and simulated. The research results are of great significance to the design of the site support, the maintenance and reinforcement and the improvement of rock stability.