Abstract: Blasting in mines and tunnels will cause certain vibration hazards to adjacent buildings,and it is necessary to explore feasible vibration reduction measures during the construction process.Setting vibration-damping holes in the working face is a new type of active vibration-damping technology.The research on vibration-damping holes can provide a reasonable vibration-damping scheme for mine and tunnel blasting design.Combined with field measurement and numerical calculation,the law of vibration damping effect of vibration damping holes during blasting construction was analyzed,and the grey correlation degree theory was used to determine the degree of influence of vibration damping hole parameters on vibration damping effect,and each parameter affected vibration damping effect.The primary and secondary relationship can be described as:distance between the edge of the damping hole>distance between the damping hole and the explosion source>diameter of the damping hole>depth of the damping hole>row spacing of the double-row damping hole.Combined with numerical calculation and comprehensive analysis of on-site construction effects,it is found that during the construction process,the distance between the edge of the vibration-damping holes is 120 mm,the distance between the vibration-absorbing holes and the explosion source is 2 000 mm,the diameter of the vibration-absorbing holes is more than 120 mm,and the depth of the vibration-absorbing holes is 1 200~1 500 mm,double-row vibration-damping hole spacing is 50~100 mm,which can achieve better vibration-damping effect.The results of numerical simulation,gray correlation analysis and measured data show good consistency in the vibration reduction effect,which can provide a reference vibration reduction technology for blasting construction in mines and tunnels.It has certain reference value and guiding significance for vibration control.

Key words: mine blasting,damping hole,vibration reduction effect,grey correlation analysis,vibration speed