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沃尔库塔联合公司《永一雅加》矿个别采带开采厚1.7—2m急倾斜煤层(26—75°)时,由于顶底板岩石不稳定,一般采用采煤机和木支架。但由于大量不安全手工作业和坑木消耗大,技术经济指标比倾斜煤层低60～71％。 考虑了用1MKM型机组开采35°以下煤层经验,《永—雅加》煤矿及贝绍拉设计研究院工作人员提出了利用这种机组进一步改进开采这种煤层的技术方案。
In the case of the mining of the 1.7-2m thick steep coal seam (26-75 °) in the Yung Yak Jaya mine of the Vorkuta joint venture, shearers and wooden brackets are generally used due to the instability of roof and floor rock. However, due to the large amount of unsafe manual operations and pit consumption, the technical and economic indicators are 60-71% lower than those in inclined coal seams. Taking into account the experience of mining coal seams up to 35 ° with 1MKM units, the staff of “Yong-Jakarta” Coal Mine and Besaula Design and Research Institute put forward the technical scheme of further improving the mining of this coal seam with such units.