实体煤巷道静载型冲击孕育数值模拟研究

随着煤炭资源枯竭、开采环境恶化，矿山冲击灾害频发，严重制约了安全高效开采。针对实体煤巷道掘进冲击及其影响因素，利用数值软件对埋深、侧压系数、煤层厚度和巷道宽高比等进行了模拟研究，认为大埋深和大巷道宽高比均显著增加了围岩变形能的积聚程度，侧压系数大于或小于1以及煤厚在20 m范围内变化时也增加了巷道围岩的冲击概率，为巷道支护、补强支护参数设计以及降冲防冲措施制定提供了依据，对巷道安全施工有重要的指导意义和工程实践价值。

Research on numerical simulation of rockburst gestation in solid coal roadway excavation

Mining environment，frequent mine shock disasters have severely restricted safe and efficient mining.Aiming at the impact of solid coal roadway excavation and its influencing factors，numerical software was used to simulate the buried depth，lateral pressure coefficient，coal seam thickness，and roadway width-to-height ratio.It was believed that both large buried depth and large roadway width-to-height ratio have significantly increased the surrounding area.The accumulation degree of rock deformation energy，the lateral pressure coefficient is greater than or less than 1，and the coal thickness changes within the range of 20 m，the impact probability of the roadway surrounding rock was also increased.It provides a basis for the design of roadway supporting，reinforcement supporting parameters and the formulation of impact reduction and prevention measures，and has important guiding significance and engineering practice value for the safe construction of roadway.