| Numerical Simulation of Blasting Effect with Divided Charge Structure |
| |
| 作者姓名： | Hu Tao Li Xianglong Guan Si He Lihua |
| |
| 作者单位： | Faculty of Land Resource Engineering,Kunming University of Science and Technology,Faculty of Land Resource Engineering,Kunming University of Science and Technology,Yunnan Minbao-Kungong Blasting Engineering Co Ltd,Faculty of Metallurgy and Mining Engineering,Kunming Metallurgy College |
| |
| 摘 要： | This paper numerically simulates the stress development and generates a three-dimensional model of the medium-deep hole blasting in infinite rock mass for continuous charge and divided charge in blasting by using the large-scale nonlinear dynamic analysis software LS-DYNA and the elastic-plastic model *MAT_PLASTIC_KINEMATIC and JWO-EOS. The difference of the decreasing rate in Von Mises effective stress of blasting, element effective stress peak in free face, the bore wall stress and acceleration are investigated. It is shown that divided charge could greatly improve the blasting effect by engineering blasting practice.
|
| 关 键 词： | moderate long hole bench blasting divided charge ANSYS/LS-DYNA numerical simulation |
| 收稿时间： | 2014/10/21 0:00:00 |
| 修稿时间： | 2014/10/21 0:00:00 |
Numerical Simulation of Blasting Effect with Divided Charge Structure |
| |
| Hu Tao,Li Xianglong,Guan Si,He Lihua.Numerical Simulation of Blasting Effect with Divided Charge Structure[J].Engineering Science,2014,16(6). |
| |
| Authors: | Hu Tao Li Xianglong Guan Si and He Lihua |
| |
| Affiliation: | Faculty of Land Resource Engineering,Kunming University of Science and Technology,Faculty of Land Resource Engineering,Kunming University of Science and Technology,Yunnan Minbao-Kungong Blasting Engineering Co Ltd,Faculty of Metallurgy and Mining Engineering,Kunming Metallurgy College |
| |
| Abstract: | This paper numerically simulates the stress development and generates a three-dimensional model of the medium-deep hole blasting in infinite rock mass for continuous charge and divided charge in blasting by using the large-scale nonlinear dynamic analysis software LS-DYNA and the elastic-plastic model *MAT_PLASTIC_KINEMATIC and JWO-EOS. The difference of the decreasing rate in Von Mises effective stress of blasting, element effective stress peak in free face, the bore wall stress and acceleration are investigated. It is shown that divided charge could greatly improve the blasting effect by engineering blasting practice. |
| |
| Keywords: | moderate long hole bench blasting divided charge ANSYS/LS-DYNA numerical simulation |
|
| 点击此处可从《中国工程科学》浏览原始摘要信息 |
|
点击此处可从《中国工程科学》下载全文 |
