Study On Deep Hole Water-coupling Blasting To Preent Rock Burst Technology And Application

With the current increase in the depth of mining, roadway force status of the worse, burst gradually emerging, the frequency and intensity also increases. Therefore, the study took place in deep and high stress construction of the tunnel burst the problem, for the construction of the tunnel to ensure the safety of deep practical value. In recent decades, at home and abroad in the prediction and control of burst has done a lot of research,put forward many theory and control methods.In this paper, the issue has been fully researched rock structure about rock burst, and blasting of rock fragmentation mechanism progressively, to provide a theoretical basis for water-coupling blasting. Simulation environment developed coal mining face-water two-phase liquid-solid coupled burst test system, study the relationship between process of stress and strain of rock under the water-coupling blasting with the crack evolution-broken loose rock in the scope. In PingMei 12 coal mining belt down, using numerical simulation to study the effect of water stress and strain coupling blasting law, analysis and comparison of the process with not coupling the effect of distress blasting. Through simulation results, the crack field and water-coupling blasting vibration coupling medium and the relationship between stress and strain analysis of coal in the process and characteristics of rock deformation and damage process and to establish the role of water coupling blasting, the rock deformation Monitoring system, thereby crushing effect of the water coupled with the inherent relationship between the deep water pressure blasting burst pressure relief to prevent the development of blasting technology and provide new guidance.