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Research on the escape mechanism and influencing factors of harmful gas induced by blasting excavation in deep rock tunnel
The escape of toxic and harmful gases is a common disaster effect in tunnel engineering. Frequent drilling and blasting excavation disturbances under high in-situ stress environment will inevitably lead to cumulative damage effect on surrounding rock, which will increase the permeability coefficient of surrounding rock, increase the risk of toxic and harmful gas escape, and seriously endanger construction safety. In this paper, based on real-time monitoring data of harmful gases during blastingdoi:10.21203/rs.3.rs-1068339/v1 fatcat:r6saql4yojb5xg6tcg3ofplk4q