Analysis of Reverse Circulation Performance of a Large-diameter Reaming Bit with a Guide Column for Mine Rescue Drilling

To address the urgent demand for rapid construction of large-diameter rescue shafts in mine emergencies, this study introduces a reverse-circulation reaming drill bit incorporating a guide column for down-the-hole (DTH) hammer systems. Computational Fluid Dynamics (CFD) simulations were conducted us...

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Principais autores:	Y. Cao, H. Y. Zhang, G. Q. Cui, Z. Chen, X. Q. Wang, D. X. Chen
Formato:	Artigo
Idioma:	Inglês
Publicado em:	Isfahan University of Technology 2026-04-01
coleção:	Journal of Applied Fluid Mechanics
Assuntos:	reverse circulation drilling reaming bit with guide column cfd simulations structural optimization mine rescue
Acesso em linha:	https://www.jafmonline.net/article_2895_6b8b8e3bd6ad94b985c1b1f1b7a94cb2.pdf
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