论文部分内容阅读
Estimating underground mine ventilation friction factors from low density 3D data acquired by a movi
【机 构】
：
MiningSystemsLaboratory
【出 处】
：
矿业科学技术学报：英文版
【发表日期】
：
2018年4期
其他文献
As a contributing factor in the dynamic failure(bumping) of coal pillars,a bump-prone coal seam has been described as one that is ‘‘uncleated or poorly cleate
Coal and gas outburst is an extremely complex dynamic disaster in coal mine production process which will damage casualties and equipment facilities, and disord
A coal outburst is a severe safety hazard in room-and-pillar mining under deep cover. It is more likely to occur during pillar retreating. Multi-seam mining dra
基于大学英语AB级考试在全国高职院校范围内普及率较高的现状,高职英语AB级考试辅导模式需要朝着高效、互动式、个性化的方向改革。可借助信息技术手段,研究和推广适应时代发
This paper focuses on anisotropy of coal permeability and its stress sensitivity.Coal blocks were taken from Xinjing Coal Mine in Yangquan Coal District.Coal co
Development and evaluation of corrosion resistant coating for expandable rock bolt against highly co
Expandable rock bolts are widely used in hard rock mines as an efficient ground control product.However,capacity and service life can be significantly reduced i
Ground movements due to longwall mining operations have the potential to damage the hydrological balance within as well as outside the mine permit area in the f
Evaluation of line brattice length in an empty heading to improve air flow rate at the face using CF
线 brattice (磅) 的有效性通风系统取决于联系系统变量。然而，率关上当着标题的面的空气流动上的这些变量的效果不是广泛地学习了。在这篇论文，在与到达脸的空气流动率上的磅
Multiple coal seams widely develop in the deep Chinese coal-bearing strata. Ground in situ stress and coal seam gas pressure increase continuously with the incr