摘要
大采高工作面末采期间由于回采速度慢矿山压力显现尤为明显,传统的金属网加钢丝绳上网工艺速度慢,劳动强度大,人员需进入刮板输送机作业,危险系数高。长平矿顶底板强度低,煤质软,末采期间回采速度慢易引起顶板破碎漏矸,4321工作面采用“煤矿井下矿用聚酯纤维增强塑料网“假顶”(以下简称“柔性网”)进行末采,有效提高了4321工作面回采进度,杜绝了顶板漏冒事故,为安全、高效回采提供了保障。
Because of the slow mining speed and obvious mine pressure during the final mining period of high mining height face,the traditional wire mesh and wire rope surfing technology is slow,labor intensity is high,and personnel need to enter the scraper conveyor operation,and the risk factor is high.The strength of roof and floor in Chang Ping Mine is low,the coal quality is soft,and the mining speed during the end-mining period is slow,which easily causes the roof to break and leak gangue.In 4321 working face,the“false roof”of polyester fibre reinforced plastic net(hereinafter referred to as“flexible net”)is adopted to carry out the final mining,effectively improving the mining progress of 4321 working face,eliminating the roof leaking accident and providing a guarantee for safe and efficient mining.
作者
吴涛
胡冰
WU Tao;HU Bing(JINCHENG Coal Mine Group,Jincheng,048000,China)
出处
《山西煤炭》
2019年第2期68-71,共4页
Shanxi Coal
关键词
大采高
聚酯纤维增强塑料网
破碎漏矸
末采
large mining height
polyester fiber reinforced plastic mesh
broken waste
end-mining
作者简介
吴涛(1990-),男,山西临汾人,本科,助理工程师,从事采煤技术管理工作。
