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依据陕西南梁煤矿首个综采面煤层赋存特征及覆岩力学参数,对厚土层覆盖层下薄基岩浅埋煤层开采进行了大比例相似材料模拟实验研究,分析了额定工作阻力6000 kN支架的运行特性,揭示了厚土层浅埋煤层开采上覆岩层的破坏规律及“支架-围岩”关系,研究认为厚土基浅埋煤层裂隙带高度比一般赋存条件下的煤层大,在实验支架初撑力频率分布与生产实际相似的情况下,实验得出的支架额定工作阻力比按一般赋存条件计算公式得出的支架阻力大许多,说明一般计算公式不适宜用于厚土层浅埋煤层．实验首次采用了力学特征与原型相似的恒阻模拟支架控制系统,研究为南梁煤矿综采面支架选型及开采提供了重要的科学依据．图5,表3,参8．
According to the occurrence characteristics of coal seam and the mechanical parameters of overburden in the first fully mechanized coal mining face in Nanliang Mine of Shaanxi province, large-scale similar material simulation research on the mining of thin-bedded shallow seam under thick overburden is carried out. The rated working resistance is 6000 kN The results show that the fractured zone of thick seam with shallow burial coal seam is larger than the coal seam under normal conditions, Under the condition that the frequency distribution of initial support force of experimental support is actually similar to the actual production, the rated working resistance of the support obtained by the experiment is much larger than that of the support calculated according to the formula of general storage conditions, indicating that the general calculation formula is not suitable for thick soil Shallow layer of coal seam. For the first time, a constant resistance simulation support control system with similar mechanical characteristics and prototype is used in the experiment. The research provides an important scientific basis for the selection and mining of the support in fully mechanized mining face in Nanliang Mine. Figure 5, Table 3, reference 8.