中文摘要：

以南凹寺煤矿30405工作面为研究对象,利用计算机数值模拟的方法研究采空区上覆岩层＂三带＂分布规律,研究结果表明,该采面垮落带分布范围为采空区上方0~15 m左右,裂隙带分布范围为15~40 m左右。同时,利用理论计算对数值模拟结果进行验证,理论计算结果表明垮落带高度为（9.5±2.2）m、裂隙带高度为（37±5.6）m,两者数据基本吻合,说明计算机数值模拟结果真实可靠。

英文摘要：

Taking 30405 working face of Nanwasi coal mine as the research object,the goaf overburden distribution laws of ＂three zones＂is studied by the method of numerical simulation,the results of the study show that the mining caving zone distribution range is above goaf of 0 ~ 15 m,fracture zone distribution range is about 15 ~ 40 m. At the same time,the calculation result of numerical simulation results are verified by using the theory,the theoretical calculation shows that the caving zone height is（9. 5 ± 2. 2） m,the fracture zone height is（37 ± 5. 6） m,it＇s also meet,which proves the truth and reliability of computer numerical simulation result.