To solve the difiiculities of aquifer-protective mining,the water cracks distribution characteristics in the overlying strata are studied by physical simulation.

• 为解决浅埋煤层的保水开采难题,采用物理模拟方法,研究了浅埋煤层大采高长壁工作面的采动覆岩导水通道的分布特征。