Conference Proceedings
Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990
Conference Proceedings
Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990
Relationship of Joint Orientation with Hole Spacing Parameter in Multihole Blasting
Rock Discontinuities ("joints") affect blasting results. An investigation was carried out to understand if blast parameter such as spacing needs to be altered with the change in joint direction. Small scale laboratory studies in jointed limestone blocks have been carried out. It is shown that optimum spacing is variable with the "joint" orientations. Evidence is presented from field studies in four limestone quarries supporting laboratory studies. Reasons for success and failure of widespacing technique is also provided. Only with suitable orientations of "joints: widespacing is successful.
Contributor(s):
S Bhandari, R Badal
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- Published: 1990
- PDF Size: 0.512 Mb.
- Unique ID: P199005046