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分析了华北聚煤区南缘逆冲推覆构造形成的动力学机制和构造特征,探讨了推覆构造对研究区内煤体结构、构造应力和瓦斯含量等方面的影响或控制,认为推覆构造对区内构造煤的发育与分布具有控制作用,区内构造特征主要为逆冲推覆构造下的压性、压扭性断裂,推覆构造有利于瓦斯的保存,高突矿区的范围宏观上具有沿推覆构造带分布的规律,揭示了推覆构造与煤与瓦斯突出灾害的密切联系。
The dynamic mechanism and tectonic features of the thrust nappe structure on the southern margin of the coal accumulation area in North China are analyzed. The influence or control of the nappe structure on the coal structure, tectonic stress and gas content in the study area is discussed. The tectonics has a controlling role on the development and distribution of tectono-coal in the area. The tectonic features in the area are mainly compressive and compressive-shear fractures under the thrust nappe structure. The nappe structure is favorable for the preservation of gas and the macroscopic range Which has a regular distribution along the nappe structure belt and reveals the close relationship between the nappe structure and coal and gas outburst disasters.