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http://hdl.handle.net/2080/405
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| Title: | Predicting blast-induced rockdamage(BIRD) in burn cuts using acceleration measurements |
| Authors: | Murthy, V M S R
Dey, K
Munshi, B
Sunil Kumar |
| Issue Date: | 2003 |
| Citation: | Proceedings of the Second National Seminar on Rock Excavation Technique(ROCKEX2003), April 7-8, Bhubaneshwar, pp 13-19.(NC19) |
| Abstract: | Most popular means of excavation for horizontal drivages/tunneling is drilling and blasting. In an
attempt to get longer pull, higher explosive per hole is used resulting blast-induced rock damage
(BIRD). The present existing damage assessment technique is based on peak particle velocity (PPV).
Geophone used for PPV measurement has an range upto 254 mm/s which is unable to measure in the
near-field. Far-field measured PPV when extrapolated may not be able to determine damage
threshold level accurately. Acceleration measurement in the near-field is possible with the presently
available accelerometers and damage threshold level can be determined with a better accuracy. |
| Description: | Copyright for this article belongs to the proceedings publisher |
| URI: | http://hdl.handle.net/2080/405 |
| Appears in Collections: | Conference Papers
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