大采高综采面支架工作阻力的确定仍处于探索阶段，缺少成熟通用的计算公式。小保当煤矿的开采存在支架工作阻力确定的问题。研究小保当煤矿大采高综采面支架工作阻力具有重要的理论意义及实际价值。 论文结合小保当煤矿开采条件，通过物理相似模拟、数值模拟实验对7.5m、5.0m大采高综采面支架受力情况进行分析，同时运用动载荷法及“砌体梁”理论法对其工作阻力进行计算，确定出小保当煤矿7.5m、5.0m大采高综采面支架合理工作阻力分别为22000kN、13500kN； 物理相似模拟实验过程中工作面出现了“悬臂梁”结构，依此建立小保当“大采高悬臂梁”结构模型，给出了相应的支架工作阻力计算公式，利用该公式计算出7.5m、5.0m大采高支架工作阻力分别为23928.9kN、14613.6kN，其结果与相似模拟、数值模拟、动载荷法及“砌体梁”理论法计算综合得出的工作阻力基本一致； 通过分析一般采高条件下支架载荷经验估算法，对小保当大采高支架载荷经验估算相关参数进行调整，推导出大采高综采面支架载荷相当于采高的12～17倍岩柱的重量（定义为大采高经验公式）。相似模拟、数值模拟、动载荷法及“砌体梁”理论法计算综合确定的7.5m、5.0m大采高综采面支架工作阻力分别为采高的13.97、14.04倍岩柱重量，大采高经验公式取值范围与该结果一致，大采高经验公式可作为小保当煤矿2-2煤不同大采高综采面工作阻力确定的参考； 采用“大采高悬臂梁”结构工作阻力计算公式及修正后的大采高经验公式并结合数值模拟计算结果，最终确定出小保当煤矿7.0m、6.5m、6.0m、5.5m大采高综采面支架合理工作阻力分别为19000kN、17500kN、17000kN、16500kN。 论文研究结果为小保当煤矿大采高综采面的支架选型提供了依据。

The determination on working resistance of support for fully mechanized face with large mining height is still in the exploratory stage , lack of mature general calculation formula. The coal mining of Xiaobaodang is faced with the problem of determine support working resistance. study on support working resistance for fully mechanized face with large mining height of Xiaobaobang mine has important theoretical significance and practical value. Combining the condition of Xiaobaodang mine, based on simulation experiment and numerical, analysis of 7.5m, 5.0m large mining height mining support force,at the same time, using the method of dynamic load and rock lined beam theory for its working resistance calculation,determine the 7.5m,5.0m large mining height mining support reasonable working resistance of 22000kN and 135000kN respectively. Physical analog simulation experiment working face appeared in the process of cantilever beam structure,according to the Xiaobaodang large mining height cantilever structure model is established,corresponding support working resistance calculation formula is given,using the formula to calculate the 7.5m,5.0m large mining height support working resistance were 23928.9k N ,14613.6 k N,the results show good agreement with integrated computation results of analog simulation and numerical,the method of dynamic load and rock lined beam theory. Through anslysis the experience of support load estimation method under the general condition of mining height, experience of large mining height are broken estimate related parameters to adjust,large mining height mining is deduced equivalent to 12 to 17 of mining heighe rock pillars of support load or weight(Defined as the large mining height experience estimation method), using the method of analog simulation and numerical, dynamic load and rock lined beam theory to calculate the 7.5m,5.0m large mining height support working resistance were respectively 13.97,14.04 times the weight of rock pillars of mining height. large mining height empirical formula scope in accordance with the results,large mining height empirical formula can be used as 2-2 seal of Xiaobaodang coal mine different mining height the work resistance of the fully mechanized face certain reference. Work with large mining height cantilever beam structure resistance calculation formula and revised large mining height empirical formula,combined with numerical simulation results,eventually determine the 7.0m,6.5m,6.0m,5.5m large mining height reasonable mining support working resistance of Xiaobaodang coal mine,respectively is 19000 kN ,17000 kN ,17000 kN and 16500 kN. Thesis research results for Xiaobaodang coal mine large mining height on the surface of the fully mechanized support selection provides the basis.