【摘要】 文中分析了无支护水力开采不稳定中厚煤层存在的主要问题;提出了有支护水采工艺方案、适用条件和可行性分析。指出了采用有支护水采需要进一步研究解决的问题更多还原

【Abstract】 Following an analysis of the main problems encountered in mining unstable medium thick seam with non supported mining sysytem,the author proposes a supported mining system,together with an analysis of the adaptable condotions and feasibility of this mining method,Finally the paper points out the problems of the mining method requiring to be solved through further study.更多还原