煤矿安全2017，Vol.48Issue(8)：151-154,4.DOI:10.13347/j.cnki.mkaq.2017.08.042
金竹山矿区地质构造特征及其对瓦斯分布的控制作用
Geological Structural Features of Jinzhushan Coalfield and Its Effect on Methane Distribution
毛党龙 1刘敏 2武静3
作者信息
- 1. 湖南省地质科学研究院,湖南长沙410007
- 2. 湖南地科院规划设计有限公司,湖南长沙410007
- 3. 中海石油研究总院,北京100028
- 折叠
摘要
Abstract
Based on the geological structure characteristics of Jinzhushan Coalfield,the characteristics of fracture and fold structure are studied.It is found that the structure is more complicated,and the subgrade fold is less,mostly in the northwest wing of the coalfield.The fault is developed mainly in the boundary of the coalfield and the shallow side of the two wings;the inverse fault is main,and the normal fault is less.By analyzing each tectonic activity in the coalfield,through establishing the mathematical model of fracture tectonic movement heat,and simulating the friction heat release quantity by estimating and comparing the heat in northwest wing mining area and the southeast wing of coal seam section activities,we find that the heat in northwest wing fault plane is higher,and the fault scale of 5.04×1011 J of Bashiting fault in the southeast is larger.The inverse fault of the southeast wing is connected with the normal faults,resulting in the release of stress,so that the early gas generation is effectively dissipated.The risk level of coal and gas outburst in the southeast wing near the fault should be smaller than that in the northwest wing.关键词
金竹山矿区/构造特征/断层/煤与瓦斯突出/构造热Key words
Jinzhushan coalfield/structural characteristics/fault/coal and gas outburst/tectonic thermal分类
矿业与冶金引用本文复制引用
毛党龙,刘敏,武静..金竹山矿区地质构造特征及其对瓦斯分布的控制作用[J].煤矿安全,2017,48(8):151-154,4.
