1) medium-thickness and high-thickness seams
中厚厚煤层
2) medium-thick seam
中厚煤层
1.
Selection of minning technology,support method and parameters of medium-thick seam is introduced.
介绍了中厚煤层一次采全高的回采工艺、支护方法和具体参数的选择,即工作面回采时不留底煤,增加煤炭回收率,对支柱布置形式进行改进,并在理论上进行安全系数验算。
3) medium-thickness seam
中厚煤层
1.
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.
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。
2.
The authors elaborate the application of longwall mining with descentional ventilation at 7327 working face in the medium-thickness seam with big dip-angle,and point out the ways of fire prevention by giving even air pressure,burying pipe and gelatinizing,and using atomizing inhibitor.
论述沛城煤矿7327回采工作面大倾角中厚煤层下行通风长壁开采,采用均压、埋管注胶、雾化阻化剂等防灭火措施及效果,提出了采煤工作面大倾角中厚煤层长壁开采的防灭火方法。
4) medium thick coal seam
中厚煤层
1.
Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam
中厚煤层区段煤柱留设宽度理论确定
2.
The adaptability of full-mechanized powered support in medium thick coal seam under the geology condition of coal seam in Wanbei minefield is studied and the rule of support design,equipment selection and mating in working face and the safety and technology measures in use are put forward.
结合国内外液压支架发展趋势,研究了皖北矿区煤层地质条件下,中厚煤层综采工作面液压支架适应性,提出液压支架设计、工作面设备选型配套原则以及使用中应采取的安全技术措施。
3.
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.
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。
5) middle thick coal seam
中厚煤层
1.
The concrete construction methods and effects of mining technology in the middle thick coal seam are introduced.
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。
6) medium-hard thick seam
"中硬"厚煤层
补充资料：厚厚
1.指大地。 2.很厚。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条