介绍了中厚煤层回采工艺的具体施工方法和效果，同时介绍了工作面支护参数的计算。
The concrete construction methods and effects of mining technology in the middle thick coal seam are introduced.
在大倾角中厚煤层推行走向短壁采煤方法，使用单体液压支柱，取得较好的技术经济效果。
The article introduces the shortwall mining method along strike in medium-thickness seam with great dip angle, which is based on individual hydraulic prop and has brought great economic effect.
介绍了急倾斜中厚煤层回采工艺的具体计算数据，以及在实际施工中的应用效果；同时介绍了采后沿空留巷的施工方法。
The specific calculated data of mining technology in the steeply pitching medium thick coal seam and it's application effect in real construction are introduced.
本文通过技术经济比较，对营城煤矿条件下，薄及中厚煤层群采区分层或分组的合理布置方式作了分析。用经济分析法确定了在这种条件下采区分组布置的合理界限。
Through the comparison of technical economy, this paper has analysed the proper layout of individual beds or separate groups for multiple seams of thin and medium thickness in the Ying Cheng Colliery.
介绍了厚煤层回采巷道中锚网(索)支护的施工组织及应用效果分析。
The organization of construction and application result of metal net support in thick coal seam mining are introduced.
在分析煤厚变化与构造作用之间的关系基础上，研究井田内在开拓开采中的煤层厚度变化规律。
Base on the analysis the relationship between the seam thickness changes and structure function, the paper studied the thickness change law of the seams in coal mining operation in the mine filed.
在分析煤厚变化与构造作用之间的关系基础上，研究井田内在开拓开采中的煤层厚度变化规律。
Base on the analysis the relationship between the seam thickness changes and structure function, the paper studied the thickness change law of the seams in coal mining operation in...
在含其它结核的薄煤层、普通薄煤层以及中厚、厚煤层同样可以采用。
The invention can be used for mining low coal seams containing other concretions, ordinary low coal seams, medium-thickness coal seams and high coal seams.
在含其它结核的薄煤层、普通薄煤层以及中厚、厚煤层同样可以采用。
The invention can be used for mining low coal seams containing other concretions, ordinary low coal seams, medium-thickness coal seams and high coal seams.
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