| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1630730 | Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material | 2006 | 6 Pages |
Abstract
On the basis of the theories of mechanics of explosive and rock fracture mechanics, the mechanism of crack initiation and its expansion of directional fracture controlled blasting with shaped charges in rock were studied, then the blasting parameters were designed and tested by a model test in laboratory and field experiment. The experimental and test results showed that the energy from blasting is directionally concentrated for the cumulative action. The directional expansion of cracks is satisfactory, the results of the model test and field test suggested that the orientation fracture blasting with shaped charge is a good means of excavating tunnels or cutting rock.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yong Luo, Zhaowu Shen,