Drilling Processes with Hydraulic Percussion Rock Drills
Rock drills were developed about two hundred years ago, and hydraulic percussion rock drills are about half-century old. Performance and efficiency of rock drills have been increased by a number of researchers and engineers. Percussion energy was dramatically increased with changing the power source...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
The Mining and Materials Processing Institute of Japan
2017-09-01
|
Series: | Journal of MMIJ |
Subjects: | |
Online Access: | https://www.jstage.jst.go.jp/article/journalofmmij/133/9/133_223/_pdf/-char/en |