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为研究矿井的煤与瓦斯突出规律,以南山煤矿发生的192次煤与瓦斯突出(含动力现象)为事例,根据煤与瓦斯突出记录卡片,按突出的类型、标高和埋深、突出点地质情况、突出预兆、回采和掘进工作面突出发生情况,分类进行突出次数和百分比统计。分析得出南山煤矿煤与瓦斯突出规律以压出型居多;随着标高的降低、埋深的增大,突出发生的次数增多;地应力为矿井突出的主导因素,瓦斯压力和自重力为次要因素;突出诱因放炮占绝大部分;地质构造区域容易发生突出;绝大多数的突出事先都有突出预兆。
In order to study the law of coal and gas outburst in coal mines, taking 192 cases of coal and gas outburst (including power phenomenon) occurred in Nanshan Coal Mine as an example, according to the record card of coal and gas outburst, according to the prominent type, elevation and burial depth, Situation, highlight omen, mining and driving face prominent situation, classification of outstanding number and percentage statistics. It is concluded that the law of outburst of coal and gas in Nanshan coal mine is dominated by outburst. With the decrease of elevation and the increase of burial depth, the frequency of outburst increases. The earth stress is the predominant factor of mine outburst. The gas pressure and self-gravity To factor; highlighting the cause of induction blasting accounted for the vast majority; prone to prominent geological structure of the region; the vast majority of prominent prior promises.