1) sub level caving in the steep seam
急倾斜煤层放顶煤
1.
The difficulty degree of roof coal caving can be exactly distinguished by the model ,which will play an important role in the sub level caving in the steep seam.
在总结分析现场工业性试验的基础上,建立了急倾斜煤层放顶煤法顶煤可放性识别的人工神经网络模型,模型能对不同开采条件下的顶煤可放性进行准确的识别,对推广急倾斜煤层放顶煤有重要的指导意义。
2) steep seam
急倾斜煤层
1.
Repetitive mining subsidence with thick soil layers and steep seam;
厚冲积层急倾斜煤层群开采重复采动下的开采沉陷
2.
Similar material simulation study on the mining overburden movement law in steep seam;
急倾斜煤层开采上覆岩层运动规律模拟研究
3.
Model and its application on the evaluation of degree of difficulty of top coal caving in steep seam;
急倾斜煤层顶煤可放性评价模型及应用
3) steeply inclined coal seam
急倾斜煤层
1.
Based on the analysis of problems in slope mining in steeply inclined coal seam in Datai Mine, 3 improvement projects were put forward according to on-the-spot application status.
分析了大台矿急倾斜煤层斜坡式开采存在的问题,结合现场应用情况,提出3种改进方案,条件适宜时,配合机械化水平的提高,可提高生产效率和经济效益。
2.
Aimed at the steeply inclined coal seam of Datai Mine,practicable prevention measures are put forward and better effective is obtained.
结合大台井急倾斜煤层提出了相应的切合实际的防治措施,如防治冲击矿压的钻孔布置、注水设备的选择、注水工艺参数的确定等,收到了较好的实效。
3.
Based on the #403 face entry of Guandi coal mine,the characters of steeply inclined coal seam entry maintenance is introduced.
以官地矿403工作面回采巷道为工程背景,介绍了急倾斜煤层巷道的维护特点,分析了该巷道的支护难题。
4) steep coal seam
急倾斜煤层
1.
Determination of local caving rule in steep coal seam repeated mining and safe mining height;
急倾斜煤层复采抽冒规律与安全开采高度确定
2.
In order to predict the mining effect and choice the technical decision,the comprehensive evaluation on steep coal seams was taken.
为了预测急倾斜煤层开采的效果和决策辅助技术,对急倾斜煤层可采工艺性进行综合评价。
3.
The paper summarised technology for guick-equiping and withdrawing powered support is suitable for steep coal seam and is ripe experience.
总结了液压支架快速安装与回撤技术,该技术适用于急倾斜煤层,且已日趋成熟。
5) steeply inclined seam
急倾斜煤层
1.
Aimed at the character of the steeply inclined seam,the reasonable roadway arrange,production technology and safety measure are used.
针对急倾斜煤层的特点,采用合理的巷道布置、生产工艺和安全措施,通过现场实际开采,摸索经验,实施巷道长壁长孔爆破采煤法,为今后急倾斜煤层开采寻找安全之路。
2.
By force of pratise of +615 m 49 coal in Xiaohua coal mine,the text introduces mina points of no-stumping technoloy in steeply inclined seam mining,by laying manual seam roof,the coal recovery rate will be increased,and visible economic benefit will be tokenout.
介绍急倾斜煤层无煤柱开采工艺技术要点,通过小华矿+615 m区段49#工作面实践,铺设人工假顶,提高资源回收率,取得明显经济效益。
6) steeply inclined and extremely thick coal seam
急倾斜特厚煤层
1.
Frequent and violent underground pressure behavior and dynamic disaster made roadways deform and damage instantaneously in full-mechanized caving mining face with horizontal sections in steeply inclined and extremely thick coal seam.
针对急倾斜特厚煤层水平分段综放工作面回采巷道频繁出现强烈矿压显现和动力灾害造成巷道瞬间变形破坏现象,通过现场测试和理论分析研究动力灾害发生机理,采取综合防治措施,很好地解决了动力灾害问题,促进了矿井安全生产。
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