厚松散煤层大断面切眼刷大工艺的实践研究

A research on the practice of large cross-sectional open-off cut enlargement in loose and thick coal seams

介绍了田陈煤矿3下7106工作面大埋深特厚松散煤层托顶煤大断面切眼刷大工程,对边刷大边安装液压支架的施工工艺进行了研究与实践,实现了大断面切眼刷大的安全施工。

This paper introduces the project of enlarging the large cross-sectional open-off cut in the extra thick and loose coal seam in great dept of 3lower 7106 coal face in the mine.However,focus of this paper is laid on the simultaneous operation of the enlargement and the installation of powered supports and relevant technical process and practice.This large cross-sectional open-off cut enlargement turns out to be completed with excellent safety record.