摘要
以麻地梁煤矿507工作面为工程基础,采用现场监测和在线监测结合的方法对大采高综放工作面矿压显现规律进行分析、研究。结果表明:507工作面液压支架工作阻力普遍较小,低于额定初撑力,支架支护能力未得到充分发挥。工作面初次来压步距为47.4 m,周期来压步距为26.7 m。工作面范围内来压存在先后顺序,中部来压早于上部,下部来压不明显,来压位置存在明显差异。
ased on the 507 working face of Madiliang Coal Mine, this paper analyzed and studied the law of mine strata behavoir in large mining height fully-mechanized caving working face by the method of combination of onsite monitoring and on-line monitoring. The results showed that the working resistance of 507 working face hydraulic support is generally small, lower than the rated initial support force, and the supporting capacity is not fully developed. The initial step distance of working face is 47.4 m, and the periodic step distance is 26.7 m.There is a sequence of pressure coming from the working face, the pressure coming from the middle is earlier than that from the upper, the pressure coming from the lower is not obvious, and the pressure coming from the position is obviously different.
作者
吴劲松
WU Jin-song(Inner Mongolia Intelligent Coal Co.,Ltd.,Ordos,Inner Mongolia,017000)
出处
《煤炭科技》
2020年第2期30-33,共4页
Coal Science & Technology Magazine
关键词
首采工作面
矿压显现规律
工作阻力
初次来压
周期来压
first mining face
law of strata behavoir
working resistance
first weighting
periodic weighting
