The propagation characteristics of blast-induced shock waves in a jointed rock mass have been monitored and studied. Accelerometers were set up on a rock surface along three lines, at 0ะ, 45ะ and 90ะ with respect to the orientation of the predominant joint strikes. Cylindrical charges were detonated
Characteristics of surface ground motions induced by blasts in jointed rock mass
โ Scribed by Hong Hao; Yaokun Wu; Guowei Ma; Yingxin Zhou
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 881 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0267-7261
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Current codes of practice in assessing the blast ground motion effect on structures are mainly based on the ground peak particle velocity (PPV) or PPV and the principal frequency (PF) of the ground motion. PPV and PF of ground motion from underground explosions are usually estimated by empirical for
Studies of structural responses and damage to high-frequency blast motion are very limited. Current practice uses some empirical allowable ground vibration limits in assessing structural performance. These empirical limits overlook the physical parameters that govern structural response and damage,