综采工作面超前应力集中区支护优化

Optimization of Support in Advance Stress Concentration Area of Fully Mechanized Face

8102工作面回采期间,5102巷超前应力集中区顶板下沉量大,采用单体液压支柱支护时不仅劳动作业强度大,支护成本高,而且单体液压支柱“π”型顶梁对顶板产生严重切顶破坏,为此对超前应力区临时支护进行优化,提出了双梁钢棚支护,取得了明显成效。

During the mining of 8102 working face,the roof of 5102 roadway in the area of stress concentration in advance has a large amount of subsidence.When single hydraulic prop is used for support,not only the labor intensity is great,the cost of support is high,but also the single hydraulic prop"π"roof beam causes serious roof cutting damage.Therefore,the temporary support in the area of stress in advance is optimized,and the double beam steel shed support is proposed,which has achieved remarkable results.