摘要
为研究三软煤层复采工作面矿压显现的特征,采用现场矿压观测的方法,在教学三矿13012复采工作面布置3个观测站,并分原始煤层和复采区域2个阶段对观测站支架的工作阻力和最大工作阻力进行观测。经过对比分析,初步掌握了复采工作面矿压显现特征及其影响因素,为安全高效进行复采工作提供了科学依据。
To study the strata behaviors characteristics of repeated mining face in three soft coal seam, according to the tpplication of field observation on rock pressure,three monitoring points were set in the repeat mining face of Jiaoxue No. 3 Coal Mine,working resistance of support was observed in the two-stage, primitive coal seam and repeated mining zone. Through contrast and analysis ,rock pressure characteristics and influences factors of repeated mining face were grasped preliminary,which provides scientific bass for the safe and high-efficient exploitation of repeated mining face.
出处
《中州煤炭》
2014年第8期23-26,共4页
Zhongzhou Coal
关键词
三软煤层
复采
综放开采
矿压显现
周期来压
three soft coal seam
repeated mining
fully-mechanized top coal caving mining
strata behaviors
periodic pres sure
