论文部分内容阅读
利用相似材料模拟试验模拟采动岩体裂隙的形成过程和分布状态 ,运用分形几何理论研究采空区冒落带、裂隙带和弯沉带岩体裂隙网络的演化规律。试验结果表明 :采动覆岩裂隙分形维数随工作面推进 ,经历了由小→大→小并趋于稳定的变化过程 ,在工作面推进距离相同情况下 ,冒落带分形维数是裂隙带的 1 0～ 1 2倍 ,裂隙带分形维数是弯沉带的 1 0～ 1 1倍
The formation process and distribution of fractured rock mass are simulated by simulating experiment of similar materials. The fractal geometry theory is used to study the evolution of fracture network in the caving zone, fracture zone and bend belt in the goaf. The experimental results show that the fractal dimension of the overburden rock fractures advances with the working face and undergoes the process of changing from small to large to small and tends to be stable. Under the same conditions, the fractal dimension of the fractured zone is fissure The fractal dimension of fractured zone is 10 ~ 1 1 times of the deflection zone