“三软”厚煤层开采覆岩运动规律模拟

Study on Overlaying Strata Movement of Coal Caving Mining in Three Soft Thick Seam

针对"三软"厚煤层具体情况,运用相似模拟技术,模拟采场受到采动影响后的变化状态,得到采场工作面前方支承压力分布范围,采场的应力分布情况,上覆岩层的破坏和运移趋向,并将实验结果与现场检测结果进行比较,显示两者吻合较好。该实验能够对采场上覆岩层分布进行很好的模拟,对安全生产具有一定的参考价值和指导意义。

Aiming at the specific situation in three soft thick seam, the chang state of the stope which was influenced by mining is simulated.Some effects are obtained,such as the abutment pressure distribution ,the distribution of stress ,the failure and migration of overlaying strata. The experimental results are compared with field test results. The simulation is closed to the field much , It provides referential value and meaning of guidance for the safe production.