This study mainly investigates the mechanical mechanism of overlying strata breaking and
the development of fractured zones during close-distance coal seam group mining in the …

A thorough excavation of the deep ultra-thick mines is highly challenging in rock
engineering, which mainly depends on the rheological properties of coal-rock mass, high …

随着我国煤炭开采深度的不断增加, 坚硬顶板开采条件引发的强矿压动力灾害日益加剧,
严重威胁矿井的安全生产. 针对神东矿区坚硬顶板发育典型灾害发生区域, 综合采用物理模拟 …

There are a series of human or natural activities, including earthquakes, explosions, and
rockbursts, which have caused a number of safety accidents in geotechnical engineering …

Coal and gas outburst disasters in coal seams are becoming more serious as coal mines
extend deeper underground in China. Furthermore, the protective coal seam mining …

With the increasing of coal mining depth, the strong pressure dynamic disaster by hard roof
intensify day by day, which seriously threatens the safety of mine production. Based on …

For the characteristics of overburden deformation and energy release under different mining
sequences of close-distance coal seam groups, physical material similar simulation …

North China–type coal field of deep coal seam mining in Shanxi formation often faces the
threat of roof water inrush. In order to reduce or avoid the roof water disasters, on-site …

Rock burst has become one of the most serious world's problems in coal resources mining,
and fracture and movement of thick and hard strata in high position is the main reason to …

针对中国神东矿区浅埋近距离双厚煤层开采的工程实际, 建立三维物理相似模型, PFC2D
数值模型和理论模型, 对双厚煤层开采后的覆岩裂隙发育规律进行研究. 综合研究表明 …