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基于裂隙聚团演化过程表现出的临界特征,利用逾渗理论,建立上覆岩层的逾渗模型,并分别分析沿走向和倾向条件下采动裂隙的逾渗特性.根据相似模拟试验结果,分析采动裂隙演化逾渗特性及周期来压之间的关系.结果表明:所建逾渗模型中逾渗概率、裂隙率、逾渗团大小、竖向破断裂隙概率、离层裂隙概率可以较为完备地定量描述裂隙特征,为建立裂隙与渗透率等相关参量的定量关系提供合适的数学载体.
Based on the critical characteristics of the evolution of fractured agglomeration, the percolation model of overlying strata is established by using the theory of percolation, and the percolation characteristics of the fractured channel along the strike and dip direction are analyzed separately.According to the results of similar simulations, The results show that the percolation probability, fracture rate, percolation size, vertical fracture probability and detachment fracture probability of percolation model can be well established Quantitatively describe the fracture characteristics and provide a suitable mathematical carrier for establishing the quantitative relationship between the fractures and the permeability and other related parameters.