A Method for Coal Mine Seismic Network Detection Capability Calculation Based on Energy

Seismic monitoring is recognized as an effective tool for investigating rock bursts in coal mines; however, a universally accepted and rational assessment method for the detection capabilities of coal mine seismic monitoring systems has yet to be established. A method based on event energy has been developed to evaluate the monitoring performance of a mine seismic network. Utilizing statistical principles, this methodology quantifies the detection capabilities of individual seismic stations in mine monitoring and provides a comprehensive assessment of the overall network monitoring quality in critical surveillance areas. This is achieved by considering the detection probability of fixed-energy events and the minimum integrity energy across the entire seismic network. Experimental trials were conducted at the Dongtan Coal Mine, where a seismic network was established. A comparison of detection probability maps for different stations revealed performance variations under various energy and distance conditions. The overall detection capability of the network for the critical monitoring area, specifically the 6306 longwall, was calculated and validated using blasting test data. The experimental results demonstrate the successful application of this new method in practical mine environments, with potential advancements in the technology of mine seismic source monitoring for both academic and engineering practices.