Shaanxi Huangling No. 2 Coal Mine Co., Ltd.

为研究采动覆岩破碎区矸石浆体介入规律,基于相似模拟实验和UDEC数值模拟,确定了工作面模型不同层位的下沉量和碎胀系数,得到了最佳充填区。研究结果表明,在竖直方向上,自下而上顶板岩层的位移不断减小,顶板岩层下沉量在倾向大致呈对称分布;采空区垮落带的碎胀系数中部小两端大;最佳充填区为采空区垮落带。研究结论为浆体充填技术提供了一定的理论基础,可有效处理矸石。

similar simulation experiments and UDEC numerical simulation, the subsidence and swelling coefficients of different layersof the working face model were determined, and the best filling area was obtained. The research results show that the dis-placement of the roof rock layer is decreasing from bottom to top in the vertical direction, and the amount of subsidence ofthe roof rock layer is roughly symmetrically distributed in the tendency. The swelling coefficient of the collapse zone in thegoaf is small in the middle and large at both ends. The best filling area is the collapse zone of the goaf. The conclusion of thestudy provides a certain theoretical basis for the slurry filling technology to effectively deal with gangue.