Numerical Simulation Study on Height Evolution Laws of Overlying Gas Flow Paths with Discrete Element Method
- 10.2991/lemcs-15.2015.372How to use a DOI?
- Gas flow path; Mining induced fracture; Gas extraction; Key strata; Discrete element method
In order to study height of overlying gas flow paths of a certain mine, Shanxi province, China, this paper studied the formation mechanism of overlying fractures induced by mining operation with the method of material mechanics, and the optimization arrangement of high-located borehole in working face through discrete element simulation software-UDEC and field gas extraction monitoring. The results showed that: the key stratum has controlling effects on the evolution of mining induced fractures, which depend on the development level of vertical fractures in the stratum. Instead of linearly develop, the height of mining induced fractures behaves a leaping develop with the advancing process of working face, and the height of development relates to the controlling height of the key stratum. The optimization height of borehole gas extraction is located in the third key stratum of roof, namely with 43-51m position in the roof.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Hui Guo AU - Ye Chen AU - Xiangdong Gao AU - Chuanqi Tao PY - 2015/07 DA - 2015/07 TI - Numerical Simulation Study on Height Evolution Laws of Overlying Gas Flow Paths with Discrete Element Method BT - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science PB - Atlantis Press SP - 1821 EP - 1825 SN - 1951-6851 UR - https://doi.org/10.2991/lemcs-15.2015.372 DO - 10.2991/lemcs-15.2015.372 ID - Guo2015/07 ER -