Research on safety prevention and control technology for comprehensive detection and monitoring of gas roadway
In the process of gas roadway excavation,the in-situ balance state of coal seams and gas bearing strata has changed,especially in the coal measure strata section or the surrounding rock fracture development area,a large number of toxic and harmful gases such as gas flow into the working space.In order to ensure construction safety,the toxic and harmful gases were detected and monitored in real-time and full coverage.In view of the problems of uneven gas distribution,inadequate detection and monitoring,and high construction risk,through the study of the gas source and emission occurrence law,it was concluded that the gas often occured after construction blas-ting,and the space often occured near the driving face,the vault overbreak space,and the windy operation site.The comprehensive de-tection and monitoring safety prevention and control technology was adopted,by using intelligent monitoring system,manual detection,and key operation tracking detection,combined with on-site practice and the established gas warning management mechanism and meas-ures.The results showed that the construction period was three months ahead of the planned period,and the gas concentration was stable within the safety control range of 0 to 0.22％.Good safety and economic benefits have been achieved,which has reference significance for similar roadways.
gas roadwaywork spacedetection and monitoringsafety prevention and control
万方数据
维普
