煤矿安全2019，Vol.50Issue(2)：76-80,5.DOI:10.13347/j.cnki.mkaq.2019.02.017
复杂地质条件下煤体-充填体协同控制技术
Co-control Technology of Coal Body and Filling Body Under Complex Geological Conditions
李柱 1谢锋2
作者信息
- 1. 重庆水利电力职业技术学院,重庆 402160
- 2. 重庆市武隆交通委员会,重庆 408500
- 折叠
摘要
Abstract
Based on the difficulties of traditional gob-side entry driving technology under deep complicated geological conditions, the technology of coal body and filling body co-protecting roadway and excavating roadway along the gob is proposed. The technical parameters of the backfilling in the roadway, the force of the contact surface between the coal body and the filling body, the two sides mechanics model, the influence factors of the plastic zone and the influence of the gas pressure are studied. The results show that the optimum width of the coal body filling body is 6 m at Ⅲ3302 working face, and the whole deformation of the surrounding rock in the roadway is within the controllable range without instability. It shows that the technical scheme achieves the desired control effect.关键词
沿空掘巷/高瓦斯/煤体-充填体/协同护巷/力学模型Key words
gob-side entry driving/high gas/coal body and filling body/collaborative roadway protection/mechanics model分类
矿业与冶金引用本文复制引用
李柱,谢锋..复杂地质条件下煤体-充填体协同控制技术[J].煤矿安全,2019,50(2):76-80,5.
