大采高长工作面矿压显现研究

Study on Strata Behavior of Large Mining Height and Long Face

大采高长工作面具有开采效率高,减少工作面搬家次数及增加煤炭产量等优点,在矿井中的应用日益广泛,加强对大采高长工作面矿压的研究十分有意义。51206工作面是典型的大采高长工作面,笔者对大采高长工作面液压支架工作阻力、超前支撑压力及护巷煤柱内的应力分布进行分析研究,以期能为后续长工作面回采提供一定的指导。

Large mining height and long working face has the advantages of high mining efficiency,reducing the number of working face moving and increasing coal production,etc.It is increasingly widely used in mines,and it is very meaningful to strengthen the study of rock pressure in large mining height and long working face.51206 working face is a typical large mining height and long working face.Through the analysis and analysis of working resistance of hydraulic support,advanced support pressure and stress distribution in coal pillar of roadway protection,the author hopes to provide some guidance for the follow-up mining of long working face.