DOI: 10.11799/ce202512013
Monitoring and early warning system of complex dynamic disasters in deep roadway heading face and its application
ZHANG Jianguo
WANG Wenchang
WEI Fengqing
FU Wenlong
ZHANG Xiaolei
DUAN Shoude
Abstract：Taking the Pingdingshan mining area,a typical deep mining region,as the engineering background,the gas occurrence characteristics controlled by geological structures were elucidated.Based on the distribution features of coal and gas outburst accidents and the evolutionary causes of compound dynamic disasters,it was revealed that in-situ stress,geological structures,and coal seam thickness variation zones are the key factors in monitoring and early warning for compound dynamic disasters.Consequently,a monitoring and early warning system based on the spectral acoustic method for such disasters,was introduced and applied to the driving faces of the Ji15-15080 transportation roadway and return airway at the No.8 Mine of Pingdingshan Tianan Coal Industry Co.,Ltd.Test results indicate that:the outburst risk indicators varied abnormally and exceeded the critical thresholds within a certain distance ahead of fault exposure,the locations exceeding the critical thresholds are distributed within coal thickness variation zones and dip angle change areas.Gas outburst and sudden coal extrusion indicators exceed critical values in fault influence zones and coal thickness variation zones,indicating the risk of dynamic disasters in these areas.The monitoring and early warning results are consistent with on-site working conditions.
Keywords：deep roadwaycompound dynamic disasterspectral acoustic methodmonitoring and early warning
Publication Date：2025-12-20
Online Publishing Date：2026-01-29(First online date of this platform, not the publication date of the document)
Pages：7( 97-103 )