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通过对山东省七五煤矿４个悬移支架放顶煤工作面开采实践的技术总结和分析研究，提出了利用改进后的悬移支架实现对２３ｍ以上煤层一次采全高的工艺适应条件，阐明了该工艺的优缺点。
Through the technical summary and analysis of 4 mining caving mining face practices in the 7th coal mine in Shandong Province, this paper proposed a new technology of adapting the whole mining height above 23m using the improved suspension bracket, Clarified the advantages and disadvantages of the process.