Research on impact characteristics of inclined coal-rock composite body
Tan Yunliang, Zhang Yubao
Available Online October 2016.
- https://doi.org/10.2991/coal-16.2016.27How to use a DOI?
- coal-rock composite model; impact instability; different inclined angles; evolution of impact energy
- In this paper, the coal-rock composite models with different inclined angles were established using particle flow code, and the impact instability characteristics after unloading were analyzed. In addition, the evolution process of impact energy was studied. The research results show that the strain energy of coal-rock composite model firstly releases linearly, and then releases obeying a power function. What is more, the kinetic evolution process is divided into accelerated impact stage, stable impact stage, and residual impact stage. With the increase of the inclined angle of coal seam, the accumulated maximum strain energy decreases, while the obtained maximum kinetic energy increases. In the same inclined coal seam, the strain energy and the kinetic energy of the roadway in the lower end of the coal seam were larger than that in the upper end.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Tan Yunliang AU - Zhang Yubao PY - 2016/10 DA - 2016/10 TI - Research on impact characteristics of inclined coal-rock composite body BT - 8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety" PB - Atlantis Press SP - 134 EP - 137 SN - 2352-5401 UR - https://doi.org/10.2991/coal-16.2016.27 DO - https://doi.org/10.2991/coal-16.2016.27 ID - Yunliang2016/10 ER -