Impact Hazard Assessment of Mine Roadway Excavation in Fault and Karst Erosion Area
- 10.2991/coal-18.2018.10How to use a DOI?
- roadway excavation, FLAC3D, fuzzy comprehensive evaluation method, impact hazard assessment
The evaluation method of impact hazard during the recovery of the working face is mature, but the evaluation indexes or factors considered by these methods are difficult to apply to the risk analysis of roadway excavation in the areas with faults and karst. Therefore, the fuzzy comprehensive evaluation method is applied to the evaluation of the impact hazard during the excavation of the west track lane in a certain mine. At first, using FLAC3D to analyze the impact hazard of roadway excavation in fault and karst erosion area. Then, the fuzzy comprehensive evaluation method is used to establish the risk evaluation index system by considering geological factors and mining technical conditions, and the membership functions and the fuzzy matrix are determined. Then, the weight of each index is identified and the impact risk level is evaluated. The results show that the West track Lane has no impact hazard, which is consistent with the measured results of drilling cuttings method. The above conclusion shows that the fuzzy comprehensive evaluation method can be used to evaluate the impact hazard during roadway excavation.
- © 2018, 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 - Zenghui Zhao AU - Xiaojie Gao AU - Qing Ma PY - 2018/10 DA - 2018/10 TI - Impact Hazard Assessment of Mine Roadway Excavation in Fault and Karst Erosion Area BT - Proceedings of the 9th China-Russia Symposium "Coal in the 21st Century: Mining, Intelligent Equipment and Environment Protection" (COAL 2018) PB - Atlantis Press SP - 54 EP - 62 SN - 2352-5401 UR - https://doi.org/10.2991/coal-18.2018.10 DO - 10.2991/coal-18.2018.10 ID - Zhao2018/10 ER -