The drilling efficiency of down-the-hole (DH) integrated drilling rigs directly affects project progress and construction costs; therefore, understanding the key factors influencing drilling efficiency is crucial.
Rock hardness is the primary factor. Different rock formations have significantly different compressive strengths; high-hardness rocks increase drill bit wear and reduce drilling speed.
Air compressor performance has a significant impact on drilling efficiency. Insufficient compressed air pressure and flow rate prevent the DH impactor from performing optimally, thus affecting rock breaking effectiveness.
Drill bit quality is equally critical. High-quality drill bits have higher wear resistance and impact strength, maintaining stable drilling performance and improving work efficiency.
Operating parameter settings are also very important. Feed pressure, rotation speed, and air pressure parameters need to be adjusted appropriately according to formation conditions. Improper parameter matching not only affects efficiency but may also accelerate equipment wear.
