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Browsing by Subject "Rock drill"

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Develop tele-controls for self thrusting percussion drilling machine and associated interface.

Author: Ottermann, RW ; Von Wielligh, AJ ; Burger, NDL ; Kononov, VA Date: Oct 2000 The purpose of this project was to develop tele-controls to control drilling operations from a distance. The controls were fitted to the prototype quiet rock drill and demonstrated to be working. Noise is a generic hazard common to all ... Read more
Numerical modelling of mine workings: annual update 1999/2000.

Author: De wet Strydom, JP Date: Aug 2000 The main objective of this thesis was the development and testing of a concept that can potentially be implemented on a rock drill to attenuate the operating frequency of a rock drill. The concept must be able to account for minor changes in ... Read more
Technique for estimating the sound power level radiated by pneumatic rock drills and the evaluation of a CSIR prototype rock drill with engineering noise controls

Author: Kovalchik, PG ; Duda, FT ; Harper, GS Date: May 2009 This report describes the procedure for the measurement and reporting of noise from portable pneumatic tools such as jackleg drills. The technique used in this research allows for the determination of the source A-weighted sound power levels ... Read more

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Browsing by Subject "Rock drill"

Browsing by Subject "Rock drill"

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