水力压裂切顶卸压在动压巷道围岩变形控制中的应用  

Application of Hydraulic Fracturing Roof Cutting and Pressure Relief in Controlling Surrounding Rock Deformation of Dynamic Pressure Roadways

作　　者：武海涛 WU Haitao(Shanxi Fenxi Zhengsheng Coal Industry Co.,Ltd.,Lvliang 032202,Shanxi,China)

机构地区：[1]山西汾西正升煤业有限责任公司,山西吕梁032202

出　　处：《能源与节能》2025年第4期276-278,共3页Energy and Energy Conservation

摘　　要：山西一煤矿掘进工作面受邻近采面动压影响,导致52302掘进工作面在原支护措施下围岩变形严重,针对该问题采用水力压裂技术进行治理。采用数值模拟研究分析得出30 min和60 min时52302工作面上覆岩层压裂半径分别为4.0、7.0 m;制定了水力压裂技术措施,措施实施完成后进行效果考察,分析考察结果可知,水力压裂切顶技术实施完成后52302工作面运输顺槽最大变形量为120 mm,治理效果显著。研究成果和研究方法对于其他矿井动压巷道围岩控制具有一定指导意义和现实意义。A coal mine in Shanxi experienced severe surrounding rock deformation in 52302 excavation working face under the influence of dynamic pressure from adjacent mining faces,despite existing support measures.To address this issue,hydraulic fracturing technology was employed for treatment.Numerical simulation analysis revealed that the fracturing radii of the overlying rock strata in 52302 working face were 4.0 m and 7.0 m at 30 min and 60 min,respectively.Hydraulic fracturing measures were formulated and implemented,followed by an effectiveness evaluation.The results showed that the maximum deformation of the transport gateway in 52302 working face was 120 mm after the application of hydraulic fracturing roof cutting,indicating significant treatment effectiveness.The research findings and methodology provide valuable guidance and practical significance for controlling surrounding rock deformation in dynamic pressure roadways in other mines.

关 键 词：动压巷道 水力压裂 数值模拟 效果考察 

分 类 号：TD322[矿业工程—矿井建设]