摘要
某煤矿2304工作面悬顶垮落,造成巷道变形严重。采用水力压裂切顶卸压技术破坏顶板岩层完整性,减小顶板垮落对工作面的破坏。现场工程实践表明,卸压后巷道最大顶底板变形量均在安全范围内,水力压裂切顶卸压取得良好的施工效果。
The suspended roof collapse of the 2304 working face in a certain coal mine causes severe deformation of the roadway.The hydraulic fracturing and roof cutting pressure relief technology is adopted to damage the integrity of the roof rock layer and reduce the damage of the roof collapse to the working face.On site engineering practice has shown that the maximum deformation of the roof and floor of the roadway after pressure relief is within the safe range,the hydraulic fracturing and roof cutting pressure relief have achieved good construction results.
作者
郭龙江
GUO Longjiang(Guizhou Branch of Hunan ABS Inspection and Certification Co.,Ltd.,Guiyang 550081,China)
出处
《中国资源综合利用》
2024年第5期104-106,共3页
China Resources Comprehensive Utilization
关键词
采煤工作面
巷道
水力压裂
切顶卸压
顶板垮落
coal mining face
roadway
hydraulic fracturing
roof cutting pressure relief
roof collapse
