Dynamic photoelastic research and engineering application of chamber blasting at different cavity ratios

GONG Min; CHEN Xiangdong

doi:10.13374/j.issn1001-053x.2005.06.002

Volume 27 Issue 6

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2005 > 27(6): 645-648

GONG Min, CHEN Xiangdong. Dynamic photoelastic research and engineering application of chamber blasting at different cavity ratios[J]. Chinese Journal of Engineering, 2005, 27(6): 645-648. doi: 10.13374/j.issn1001-053x.2005.06.002

Citation:

GONG Min, CHEN Xiangdong. Dynamic photoelastic research and engineering application of chamber blasting at different cavity ratios[J]. Chinese Journal of Engineering, 2005, 27(6): 645-648. doi: 10.13374/j.issn1001-053x.2005.06.002

Citation:

PDF( 597 KB)

Dynamic photoelastic research and engineering application of chamber blasting at different cavity ratios

doi: 10.13374/j.issn1001-053x.2005.06.002

Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2005-06-10
Rev Recd Date: 2005-10-08

Available Online: 2021-08-17

Abstract

Abstract

In order to analyze the blasting effect of linear charge at different cavity ratios, the changes of stress field and the destroyed effect at five cavity ratios were investigated by dynamic photoelasticity in experimental models. These were applied to 128 t chamber blasting in Shougang Mine in China. The results indicated that the cavity ratio above 4.0 was suitable. And a bigger cavity ratio in a broken stone area was designed for controlling fly rock.
- chamber blasting,
- cavity ratio,
- blasting effect,
- linear charge,
- dynamic photoelasticity