电磁辐射在煤巷锚杆支护监测中的应用

The application of electromagnetic radiation in coal roadway bolting monitoring

煤巷锚杆支护由于其隐蔽性,围岩的破坏失稳没有明显的预兆,一旦发生冒顶,危害性较大。因此对工程质量的可靠性要求较高。但锚杆支护工程质量的监测技术一直没有得到很好的解决。从锚杆的支护理论及破坏失效入手,导出了煤岩变形破裂与电磁辐射的耦合规律,得到了煤巷锚杆支护监测的一种新方法。

Coal tunnel bolting has the feature of hiding. Surrounding rock damage hasn＇t obvious omen. So once roof of tunnel falls in very short time, more serious harm is often caused. As a result, it requires higher reliability of bolting quality. But the monitoring of anchoring quality has not been well solved. Beginning with the theory research on bonding mechanisms and rock deformation, the paper deduced the discipline of coal and rock fracture and electromagnetic radiation＇s coupling, and then a new method of monitoring of coal roadway bolting is obtained.