Abstract
The author is indebted towards the excellent cooperation and support provided by the entire operational crew, staff and management of the BCCL and Shree Cement Ltd during collection of data for this study. Thanks to MOM, GOI, India for sponsoring projects “Development of eco-friendly blasting techniques”
Highlights
Drilling and blasting is an important rock excavation operation in mines
The fragmented rock generated by the drilling and blasting process affects the local productivity and unit costs of the mining it even influences the performance of the subsequent operations such as (McGill & Freadrich, 1994; Doktan, 2001; Singh & Yalçın, 2002; Khomenko, Kononenko, & Myronova, 2013)
OF THE STUDY The main objective of this study is to investigate the influence of blast induced rock fragmentation and muckpile angle on excavator performance in surface mines
Summary
Drilling and blasting is an important rock excavation operation in mines. The fragmented rock generated by the drilling and blasting process affects the local productivity and unit costs of the mining it even influences the performance of the subsequent operations such as (McGill & Freadrich, 1994; Doktan, 2001; Singh & Yalçın, 2002; Khomenko, Kononenko, & Myronova, 2013). Chakraborty, Ani Reddy, & Jethwa (1999) and Chakraborty et al (2004) reported the idle running time of face shovels for preparation of blasted muck to be related to the degree of fragmentation. It was suggested on the basis of field trials, that shovel operation and productivity monitoring may be expressed in terms of equipment operating and maintenance costs, which, in turn, may be related as a function of blast fragmentation (Mackenzie, 1967; Michaud & Blanchet, 1996; Singh, Baijal, & Fasihuddin, 1999; Doktan, 2001). A 10% improvement in bucket payload will directly translate to a 10% improvement in load and haul productivity and unit cost
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