The Application Of High Speed Photography To Explosive Rock Breaking Research In Underground Mining

J. R. Brinkmann

doi:10.1117/12.975539

1 September 1987 The Application Of High Speed Photography To Explosive Rock Breaking Research In Underground Mining

J. R. Brinkmann

Proceedings Volume 0674, 17th Intl Congress on High Speed Photography and Photonics; (1987) https://doi.org/10.1117/12.975539
Event: 17th International Conference on High Speed Photography and Photonics, 1986, Pretoria, South Africa

Abstract

A system for high speed photography of underground blasting with 16 mm rotating-prism cameras has been developed for the explosive rock break-ing research program in gold mine stoping at the Chamber of Mines Research Organization. This photographic system is a powerful research tool which has greatly enhanced understanding of the blasting process as it provides a visual account of the course of events following explosive initiation. The techniques which provide long duration viewing by means of controlling the expulsion of dust laden gases from the blast hole are presented. Also covered are the camera protection measures which enable camera placement within three metres of the blast. A lighting system consisting of expendable flashbulb banks coupled to a microprocessor based sequence controller has been developed and is described in a companion paper by Holden. Generalised accounts of the blasting process and specific findings from photographic studies are discussed.

Citation Download Citation

J. R. Brinkmann "The Application Of High Speed Photography To Explosive Rock Breaking Research In Underground Mining", Proc. SPIE 0674, 17th Intl Congress on High Speed Photography and Photonics, (1 September 1987); https://doi.org/10.1117/12.975539

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