Abstract
Due to the excellent characteristics of EPS foam, the numerical simulation of the blast response with columnar explosive in infinite rock mass was made based on the explicit dynamic analysis software LS-DYNA. The effective stresses in the rock blast uncoupled with three foam densities were compared to inspect the effect of the physical properties of EPS foam on blasting effects. Using the EPS foam of ρ0=21.0 kg/m3, the blasting response under six different uncoupled coefficients were numerically investigated, and the effective stress field around blasthole, the hydrostatic pressure, the speed and acceleration attenuation laws were obtained.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 425-430 |
| Number of pages | 6 |
| Journal | Meitan Xuebao/Journal of the China Coal Society |
| Volume | 36 |
| Issue number | SUPPL. 2 |
| State | Published - Sep 2011 |
| Externally published | Yes |
Keywords
- Blast
- EPS foam
- Rock mass
- Uncoupled coefficient
ASJC Scopus subject areas
- Fuel Technology
- Geotechnical Engineering and Engineering Geology
- Energy Engineering and Power Technology
- Mechanical Engineering
- Electrical and Electronic Engineering