摘要
针对急倾斜临界角近距离薄及中厚煤层群开采的特点,对回采工作面煤层巷道矿压显现规律进行研究分析,并采用实验室相似材料模拟试验的方法,分析回采工作面采动影响范围和规律,论证了该煤层结构应用无煤柱开采的可行性,并对试验前后的顶板移近量进行量化对比,确定出合理的无煤柱开采技术参数。
The rule of pressure appearances is analyzed based on the critical angles characters and mining technology in the inclined coal seams. With the simulative experiments in the laboratory, the effective rules and width in the coal winning working faces are analyzed. The feasibility of application of anthracitic column mining in this structure is proved. The parameters are confirmed with the quantized comparison of the roof displacement before and after the experiment.
出处
《煤》
2006年第1期20-23,共4页
Coal
关键词
急倾斜煤层群
矿压显现
模拟试验
无煤柱开采
inclined coal seams
pressure appearance
simulative experiment
anthracitic column mining
