1) special mining and falling coal method
特殊放煤法
2) special coal mining
特殊采煤
1.
This paper summarized the achievements of modern underground mining technology theory and practice made by Mining Branch CCRI and pointed out the tendency of modern underground mining technology from fully mechanized caving and mining technology,hydraulic powered support technology,bolt support technology in seam roadway and special coal mining technology.
从综采与综放技术,液压支架技术,煤巷锚杆支护成套技术,特殊采煤技术等专业领域论述了煤科总院开采分院在地下开采现代技术理论与实践方面取得的成果及工程应用,展望了地下开采现代技术的发展趋势。
3) special coal types
特殊煤种
1.
A copious resources of special coal types exist in Western China.
我国西部地区蕴藏着较为丰富的特殊煤种资源 ,这些具有特殊工艺性质和用途的煤种具有很高的经济价值 。
4) special coal seam
特殊煤层
1.
LTCC mining method used for special coal seam of Jining No.2 coal mine;
济宁二号煤矿特殊煤层条件下综采放顶煤开采
5) special coal pillar
特殊煤柱
1.
In order to eliminate the triangular coal pillars—special coal pillars left due to the geological structure influences affected to the protected layer,taking 172202 coal mining face in Dashucun Mine as the trial location,according to the mutual relationship and the pressure released angle of the No.
为了消除由于受地质构造影响而留设的特殊煤柱——三角形煤柱对被保护层的影响,以大淑村矿的172202工作面为试验地点,根据2号煤层和4号煤层的相互关系及卸压角,确定了该三角形煤柱影响下的未保护范围,并根据软件模拟分析,提出了该特殊煤柱影响范围应为椭圆形区域;并对影响区域先后采取了瓦斯抽放措施和排放钻孔防突措施,使该区域的瓦斯抽放率达到31%以上,实现安全回采。
6) SS Special Sizing
特殊缩放
补充资料：综采放顶煤
综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
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