构造煤的成因属性分类

邓绪彪; 胡青峰; 魏思民

doi:10.13544/j.cnki.jeg.2014.05.34

构造煤的成因属性分类

doi: 10.13544/j.cnki.jeg.2014.05.34

1.
华北水利水电大学资源与环境学院郑州 450011;
2.
中国矿业大学北京煤炭资源与安全开采国家重点实验室北京 100083

基金项目:

国家自然科学基金项目（41301598）和华北水利水电学院自主科研项目（201111-001375）资助

详细信息

作者简介:
邓绪彪（1980- ），男，博士，讲师，主要从事岩石力学、构造地质及矿山动力灾害机理及预测方面的研究工作. Email: southhero@qq.com

中图分类号: P618.11
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出版历程
- 收稿日期: 2014-04-17
- 修回日期: 2014-08-25
- 刊出日期: 2014-10-25

GENESIS AND PROPERTY CLASSIFICATION OF TECTONIC COAL

1.
School of Resources and Environment, North China University of Water Resources and Electric Power, Zhengzhou 450011;
2.
College of Geosciences and Surveying Engineering, China University of Mining and TechnologyBeijing, beijing 100083

摘要

摘要: 前人研究认为构造煤是煤与瓦斯突出的必要条件，构造煤的分类对煤与瓦斯突出的预测和防治有重要意义。(1)根据构造煤参与煤与瓦斯突出过程的突出属性对构造煤重新进行了定义，认为构造煤是构造作用下强度降低、瓦斯异常的煤气双重介质，据此将构造煤划分为01类瓦斯构造煤和01类强度构造煤以及强度和瓦斯都变异的02类构造煤。(2)参考地质构造成因环境下岩石破坏的脆韧性划分方式，将突出属性分类与脆韧性的构造成因特性结合起来，划分出3类脆性构造煤和3类韧性构造煤，分别命名为01类脆性瓦斯构造煤、02类脆性构造煤等。(3)分析了构造煤在煤与瓦斯突出中的作用，低强度构造煤在其周围形成应力集中，瓦斯通过孔隙压力和吸附作用降低煤体强度，而高压瓦斯则是突出发展过程中煤体破坏和抛掷的重要动力源之一。(4)结合成因属性构造煤分类对各种地质因素对构造煤空间分布、构造煤瓦斯的生成和保存条件进行了分析。
- 构造煤 /
- 煤与瓦斯突出 /
- 成因属性分类 /
- 脆性破坏 /
- 韧性破坏
Abstract: It is well-acknowledged that the tectonic coal is necessary for the occurrence of a coal and gas outburst. Therefore, a good classification of the tectonic coal is significant to the prediction and precaution of the outburst. It firstly gives a new definition about tectonic coal according to the mechanical properties appeared by the tectonic coal during the outburst, which is a two-phase material combined by gas and coal, and characterized by low strength and different gas content from the origin coal. With these characters, three types tectonic coal are classified as 01 gas tectonic coal(01 GTC), 01 strength tectonic coal(01 STC) and 02 tectonic coal(02 TC),respectively correspond to coal with high gas content only, low strength only and both. Secondly, six types of genesis property tectonic coal are classified when combined the mechanical property classification and the brittle and ductile of rock failure, which is the traditional geology classification of rock failure form. It embodied three brittleness tectonic coals and three ductile tectonic coals, named as 01 brittle GTC(01 BGTC), 02 GTC,et al. Thirdly, it investigates the mechanism of the attendance in outburst by different tectonic coal. The stress concentration around STC,gas pore pressures and absorption weaken the effect on the coal. The high gas pressure to destroy and throw the coal are distinctive. Finally, based on the genesis property classification, it carries out a thorough investigation about the influence on the TC distribution and its gas genesis and storage condition by geology factors.
- Tectonic coal /
- Coal gas outburst /
- Genesis property classification /
- Brittle failure /
- Ductile failure

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