Grey Relation Analysis on the Sensitivity of Influencing Factors of Pneumatic DTH Hammer Drilling Efficiency

Abstract:

The factors that influence DTH hammer efficiency are analyzed and the mathematical model is established based on the experimental data. The sensitivity analysis is made on each influencing factor by grey relation analysis method to obtain the correlation degree of each factor and the drilling speed. By using the sensitivity analysis results, the scientific measures can be adopted to improve the drilling efficiency of pneumatic DTH hammer.