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根据以往资料和实验测试结果,研究了下峪口井田煤与瓦斯突出的分布特征,采用定量的方法对煤与瓦斯突出的控制因素进行了分析,并确定了突出危险性预测指标及临界值。研究认为:本区突出点分布有明显的分区分带特点,影响煤与瓦斯突出的主要因素为褶皱构造、煤层埋深、煤体结构类型、瓦斯含量与瓦斯压力。瓦斯含量与瓦斯压力是突出产生的基础,褶皱构造、煤体结构类型与埋深是产生突出区域分布的主控因素。
Based on the previous data and experimental test results, the distribution characteristics of coal and gas outburst in Xiayukou coalfield were studied. The controlling factors of coal and gas outburst were analyzed by quantitative method, and the prediction index and critical value of outburst danger were determined. The study shows that the prominent spots in this area have obvious zonation and zonation. The main factors affecting the coal and gas outburst are fold structure, coal seam depth, type of coal body structure, gas content and gas pressure. Gas content and gas pressure are the prominent foundation of production. Fold structure, type and depth of coal body structure are the main controlling factors for the distribution of salient areas.