Research and equipment development of rock mass drilling resistance index based on rock drill breaking theory
During the process of rock breaking by a rock drill,the drill bit of the rock drill has direct contact with the rock mass,and the various parameter information of the drill bit during the drilling process can comprehen-sively reflect the physical and mechanical properties of the rock mass.However,in the actual production and con-struction process,the various parameter information of the drill bit during the drilling process is ignored and not col-lected,which to some extent wastes exploration information resources.In order to study the correlation and collec-tion methods of various information during the drilling process of rock drills,this paper conducted research on the development of rock resistance index and collection equipment based on the rock breaking theory of rock drills.The research results indicate that the anti drilling index of rock mass is closely related to drilling rate v,vibration accel-eration a,drilling pressure p,and drilling rod speed N.In addition,based on the theoretical research of rock mass drilling resistance index,a device design method for collecting rock mass drilling resistance index has been pro-posed,providing theoretical and references for the development of exploration technology based on rock mass drill-ing resistance index in the later stage.
rock drillrock breaking theorymonitoring informationdrilling resistanceequipment develop-ment
万方数据
维普
