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兖州矿业(集团)公司济宁二号煤矿在软岩类掘进过程中,采用迎头护网对暴露煤体进行全断面防护,有效增加迎头空顶范围内的安全系数,为作业人员创造了安全的作业环境。①掘进机迎头截割完毕后,首先进行临时支护,而后将两帮的菱形网(帮网)与顶网正常连接,使帮网自然下垂至底板,并与上一循环帮网按规定连接。此法使折落的煤块顺帮网下滑,能有效预防两帮折帮伤人,
Yanzhou Mining (Group) Company Jining No. 2 coal mine in the soft rock excavation process, the use of on-line protection of the exposed coal body full cross-section protection, effectively increase the head-and-ceiling area within the safety factor for the operator to create a safe operation surroundings. ① After heading machine cutting, the first temporary support, and then the two gangs of diamond mesh (mesh) and the top of the normal connection, so that the natural network to the droop to the bottom plate, and with the previous cycle to help the network connection . This method to make the collapse of the coal block along the net down, can effectively prevent the two gangs break wounding,