Research on Reasonable Lag Time of Gob-side Entry Driving in Deep Mine Based on On-line Monitoring of Lateral Stress and Deformation of Working Face
- 10.2991/coal-18.2018.19How to use a DOI?
- mining engineering, gob-side entry driving, lateral coal body, stress and deformation, on-line monitoring, reasonable lag time
The determination of reasonable lag time is the key to make the gob-side entry driving away from the violent mining of the working face. In this paper, the geological and mining conditions of the No.7432 Working Face in Kongzhuang Coal Mine is taken as the research background. Using an independently developed infrared acquisition and observation system consisting of a single beam with multi-line and multi-point (stress and deformation) sensors, the long-term and continuous on-line monitoring of the stress and deformation (displacement) change regulation of the lateral coal body in the No.7432 Working Face headentry during the whole process of mining was carried out. The monitoring results demonstrated that it took at least 5 months for the main roof to keep stable, which was the best lag time of the roadway driving along the goaf. The valuable technical experience and practical basis can be provided for the analysis and determination of reasonable lag time for gob-side entry driving in similar conditions, which is of great significance for relaxing the tense prospect of mining and driving continuance, and improving the comprehensive benefits of the coal mine.
- © 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 - Luyi Xing AU - Yongjie Yang AU - Jiakun Lv AU - Haiyu Ji AU - Yandong Zhang PY - 2018/10 DA - 2018/10 TI - Research on Reasonable Lag Time of Gob-side Entry Driving in Deep Mine Based on On-line Monitoring of Lateral Stress and Deformation of Working Face 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 - 109 EP - 114 SN - 2352-5401 UR - https://doi.org/10.2991/coal-18.2018.19 DO - 10.2991/coal-18.2018.19 ID - Xing2018/10 ER -