Blast Induced Rock Mass Damage in Tunnels
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
View Archive Info| Field | Value | |
| Title |
Blast Induced Rock Mass Damage in Tunnels
|
|
| Creator |
Jethwa, J.L
|
|
| Subject |
Blasting
|
|
| Description |
Convergence caused damage (EDZ) and blast induced damage (BDZ) are explained with field data to show that BDZ is much smaller than the EDZ. Both EDZ and BDZ need to be minimized to preserve rock mass strength for improving tunnel face stability, and minimizing tunnel supports. Results of FLAC 2D used to show that BDZ increases with tunnel depth. Smooth blasting is suggested to mitigate blast induced damage. The need to consider tunnel blasting as a part of the rock mechanics discipline, and to improve the state – of – art on tunnel blasting are suggested for the benefit of both the rock blasting and the tunneling community.
|
|
| Publisher |
IME Publication Bhubaneswar
|
|
| Date |
2009-12
|
|
| Type |
Article
PeerReviewed |
|
| Identifier |
Jethwa, J.L (2009) Blast Induced Rock Mass Damage in Tunnels. Indian Mining & Engineering Journal , 48 (12). pp. 29-33. ISSN 0019-5944
|
|
| Relation |
http://cimfr.csircentral.net/417/
|
|