摘要
针对双龙煤矿104工作面回风巷发生底鼓的情况,分析了巷道底鼓原因,进行了补强支护试验和变形监测。结果表明,顶、帮补强支护,防治底鼓效果最好,可有效减小底鼓对巷道的破坏,保证工作面正常生产。该项底鼓防治技术推广应用到该矿其他回采工作面巷道底鼓防治中,均取得较好效果。
According to the floor heave condition occurred in the air returning gateway of No.104 coal mining face in Shuanglong Coal Mine,the paper analyzed the floor heave causes of the gateway.The reinforcement support test and the deformation monitoring were conducted.The results showed that the reinforcement support of the gateway roof and sidewall would have the best floor heave prevention and control effect,could effectively reduce the floor heave damage to the seam gateway and could ensure the normal production of the coal mining face.The floor heave prevention and control technology was promoted and applied to the floor heave prevention and control of the gateway in the other coal mining faces of the mine and good effect was obtained.
作者
张伟国
ZHANG Weiguo(China Coal No.3 Construction Group Corporation Limited,Suzhou 234000,China)
出处
《建井技术》
2019年第3期8-9,47,共3页
Mine Construction Technology
关键词
煤巷
底鼓防治
补强支护
seam gateway
floor heave prevention and control
reinforcement support
