摘要
本研究以祁东煤矿7_(1)32工作面为例,采用FLAC3D模拟矿压显现,并分析巷道在采动过程中的响应。结果表明,开采至120 m时,巷道受采动影响加剧,30 m厚中砂岩层为应力传递介质。水力压裂后,顶底板和两帮最大变形量分别为111 mm和123 mm,有效缓解采动应力,稳定巷道结构。研究证明,该技术可提升深部煤矿巷道稳定性,为类似工程提供科学依据。
In this study,FLAC3D is used to simulate the manifestation of mining pressure and analyze the response of the roadway in the process of mining in Qidong coal mine 7_(1)32 working face as an example.The results show that when mining to 120 m,the roadway is intensified by mining,and the 30 m thick medium sandstone layer is the stress transfer medium.After hydraulic fracturing,the maximum deformation of the top and bottom plates and the two gangs are 111 mm and 123 mm,respectively,which effectively relieves the mining stress and stabilizes the roadway structure.The study proves that this technology can enhance the stability of deep coal mine roadway and provide scientific basis for similar projects.
作者
董村
刘君
Dong Cun;Liu Jun(Anhui Hengyuan Coal Power Co.,Ltd.,Suzhou,China)
出处
《科学技术创新》
2025年第20期84-87,共4页
Scientific and Technological Innovation
关键词
水力压裂
切顶卸压
数值模拟
系统巷道
hydraulic fracturing
roof cutting and pressure relief
numerical simulation
system roadway
