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研究表明,弱变形脆性系列构造煤发育区往往是煤层气开发的有利区,而韧性变形的糜棱煤分布区则是矿井瓦斯突出的危险地带。因此,面向煤层气勘探与开发和瓦斯突出预测与评价是学科领域亟待解决的关键科学问题及技术难题,构造煤的研究日益受到人们的高度重视。较为系统地阐述了构造煤的概念与分类,不同类型构造煤的变形特征、孔—裂隙结构和化学结构研究方面的主要进展,指出构造煤韧性变形机制研究还十分薄弱,是有待深入研究的关键科学问题;煤变形过程中元素的迁移与聚集的构造—地球化学过程是值得探讨的新领域,有可能通过应力敏感元素的提炼,揭示其在不同应力—应变环境和不同类型构造煤中的分布和演化规律,从而成为构造煤分布和瓦斯突出具有指示意义的预测指标;不同类型构造煤和瓦斯富集区的地球物理响应特征及探测理论和解释方法研究应为未来重要的发展方向。
The research shows that the weakly deformed brittle series of tectonic coal development areas tend to be the favorable areas for the development of coalbed methane, while the ductile deformation of mylonitized coal distribution areas are the danger zones for mine gas outburst. Therefore, the exploration and development of coalbed methane and the prediction and assessment of gas outburst are the key scientific and technological problems to be solved urgently in the field of disciplines. The research on tectonized coal is paid more and more attention by people. The concept and classification of tectonic coal, the deformation characteristics of different types of tectonic coal, the major progress in pore-fissure structure and chemical structure are systematically expounded. It is pointed out that the mechanism of tectonic coal ductile deformation is still very weak and is the key to be further studied Scientific issues; Elements of coal migration and accumulation during the deformation process - Geochemical process is worth exploring new areas, it is possible through the extraction of stress-sensitive elements to reveal its stress-strain in different environments and different types of tectonic coal distribution And evolvement rules of the tectonic coal so as to be indicative indicators for the tectonic coal distribution and gas outburst. The geophysical response characteristics of different types of tectonic coal and gas-rich areas and the exploration of theories and methods of interpretation should be an important development direction in the future.