摘要
七一煤业公司9106综采工作面推进至190 m时将揭露一条老巷道,回采前进行了工作面过老巷风险辨识评估,主要有片帮冒顶顶板、瓦斯、老空水等风险因素,编制了过老巷的安全技术措施,保证在生产期间的顶板、通风的安全。
An old roadway will be exposed when the 9106 fully mechanized mining face of Qiyi Coal Industry Co.reaches 190 m.The risk identification and assessment of the working face passing through the old roadway is carried out before the mining.The main risk factors include roof falling,gas,and goaf water.Safety technical measures for crossing old lanes have been compiled to ensure the safety of the roof and ventilation during production.
作者
袁振华
Yuan Zhenhua(Qiyi Coal Industry Co.,Ltd.,Shanxi Coal Transportation and Marketing Group,Changzhi 046200)
出处
《江西煤炭科技》
2021年第3期119-120,共2页
Jiangxi Coal Science & Technology
关键词
工作面过老巷
风险辨识
安全回采
working face cross the old alley
risk identification
safety mining
