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豫西主采的二1煤厚度大且变化大,全层构造煤,煤厚变化对煤与瓦斯突出具有控制作用。新安煤田煤层厚度平均3.87 m,煤厚变异系数0.87,2个相邻的最薄煤厚点和最厚煤厚点的距离为25～185 m;突出点主要位于煤厚大,且煤厚变化大区域,煤厚及其变化通过控制瓦斯含量和地应力,进而起到了控制煤与瓦斯突出的作用。
The main coal mining in western Henan Province has a large thickness and large variation, with full-thickness tectonized coal. The variation of coal thickness has a controlling effect on the coal and gas outburst. The thickness of coal seam in Xin’an coalfield is 3.87 m on average, and the variation coefficient of coal thickness is 0.87. The distance between the two adjacent thinnest coal thickness points and the thickest coal thickness points is 25 ~ 185 m. The prominent points are mainly located in coal thick and coal thickness variation Large areas, coal thickness and their changes control the gas content and ground stress, and thus play a role in controlling coal and gas outburst.