近距离煤层群协调开采模式下，由于煤层间的开采扰动影响，各煤层开采顶板结构特征不尽相同，因此各煤层开采支架工作阻力的计算方法也存在差异。为针对性地为各煤层开采支架额定工作阻力确定提供思路，综合应用理论分析、系统开发及现场实测方法，对各煤层开采支架工作阻力的计算方法进行了研究。主要成果有：①建立了煤层开采顶板砌体梁式、散体给定式及散体给定−砌体梁式平衡结构模型。砌体梁式平衡结构适用于未受开采扰动影响或受到的开采扰动影响较小的煤层开采；散体给定载荷平衡结构适用于煤层顶板岩层为单一岩层，且受到上部煤层开采影响的煤层开采；散体给定载荷−砌体梁式平衡结构适用于顶板岩层为多层岩层，且层间存在厚度较大，岩性较硬的岩层，同时受到上煤层开采影响岩层仍能保持连续性与完整性的煤层开采；②开发了适用于开滦集团“近距离煤层群开采覆岩破断及支架载荷评价系统”，提出了各煤层支架额定工作阻力的建议选择结果。通过各煤层开采支架压力实测，采用支架额定工作阻力经验选择结果后，各煤层开采支架载荷利用率普遍偏低，支架载荷富余量偏大。而采用各煤层支架额定工作阻力的建议选择结果后，各煤层开采支架载荷利用率明显提高。

Under the coordinated mining mode of close-multiple coal seams, due to the mining influence between coal seams, the roof structural characteristics are different after each coal seam extraction, so the calculation methods of support resistance shield of each coal seam are also different. In order to provide ideas for the setting load of shield determination in each coal seam, the calculation methods of the support capacity of shield in each coal seam is given by comprehensive use of theoretical analysis, system development and field measurement. The results show that: ①The voussoir beam, given load of loose body and voussoir beam with given load of loose body balance roof structure models after each coal seam extraction are established. Voussoir beam balance roof structure model is applicable to the coal seams extractions that are not affected by mining or are less affected by mining. Given load of loose body balance roof structure model is applicable to the coal seams extractions with a single roof stratum and is affected by the upper coal seam extraction. Voussoir beam with given load of loose body balance roof structure model is applicable to the coal seams extractions with multi-rock strata and within has a thick and hard lithology. At the same time, affected by the extraction of the upper coal seam, the rock stratum can still maintain continuity and integrity. ②The “overburden breaking and load evaluation system for close-multiple coal seams extraction” suitable for Kailuan Group is developed, and the recommended selection results of setting load of shield in each coal seam are put forward. Through the field measurement of support capacity of shield, the load utilization rate of shield in each coal seam is generally low and the load margin of shield is too large after using the empirical selection results of the setting load of shield. After adopting the recommended selection results of the setting load of shield in each coal seam, the load utilization rate of shield in each coal seam is significantly improved and the load margin of shield is significantly reduced.