摘要
针对永明煤矿5202工作面回采期间工作面瓦斯涌出量大、上隅角瓦斯积聚等现象,通过研究,决定对5202工作面采取“沿空留巷抽排+煤柱孔带抽”联合瓦斯治理技术。通过实际应用效果来看,采取联合瓦斯治理技术后上隅角瓦斯浓度控制在0.2%~0.4%之间,解决了上隅角瓦斯治理难度大、瓦斯积聚等技术难题,取得了显著成效。
In view of the large amount of gas emission and gas accumulation in upper corner during the mining period of the 5202 working face in Yongming Coal Mine,it is decided to adopt the combined gas control technology of"gob side entry drainage+coal pillar hole belt drainage"for the 5202 working face through research.According to the actual application effect,the gas concentration in the upper corner is controlled between 0.2%and 0.4%after adopting the combined gas control technology,which solves the technical problems of difficult gas control and gas accumulation in the upper corner,and achieves remarkable results.
作者
顾嵇毓
杨志勇
Gu Jiyu;Yang Zhiyong(China Inspection Group Gongxin Security Technology Co.,Ltd.,Shandong Zaozhuang 277500;Longwanggou Coal Mine of Guoyuan Mining Development Co.,Ltd.,Inner Mongolia Ordos 017000)
出处
《山东煤炭科技》
2021年第6期115-116,119,共3页
Shandong Coal Science and Technology
关键词
综采工作面
上隅角
瓦斯积聚
瓦斯抽排
fully mechanized working face
upper corner
gas accumulation
gas drainage
