Simulation and Analysis of a Split Drill Bit for Pneumatic DTH Hammer Percussive Rotary Drilling

Y Shi, C Li - Geofluids, 2024 - Wiley Online Library
Reverse circulation impact drilling has the advantages of high drilling efficiency and less
dust, which can effectively form holes in hard rock and gravel layer. As integral reverse …

Mechanical response of stress wave attenuator with layered structure under impact load: experimental and numerical studies

Z Yang, J Peng, D Ge, Y Li, J Li… - Journal of Applied …, 2023 - asmedigitalcollection.asme.org
The fluidic down-the-hole (DTH) hammer drilling is generally regarded as one of the best
means for hot dry rock (HDR) drilling. The fluid oscillator, as the core part of the fluidic DTH …