被保护层突出危险性评价技术的研究

Study on Assessment Technique for Outburst Hazard of Protected Seam

介绍了保护层开采后被保护层的突出危险性评价技术的研究。以新庄孜煤矿5306SⅢ工作面为例,从对国内保护层开采实践的对比分析、保护层开采的理论分析、现场试验结果的类比分析及煤巷工作面瓦斯涌出和突出危险性预测结果的分析等四个方面,对5306SⅢ工作面突出危险性进行了评价,建立了一套可行的、普遍适用的对被保护层突出危险性进行评价的方法。

The paper describes assessment technique for outburst hazard of protected seam after the extraction of protective seam,and assessment was conducted on outburst hazard of No.53063III seam by taking this face as an example and through the contrast and theoretic analysis of the extraction of protective seam at home and abroad,the analogy analysis of site test results and the analy sis of prediction results of gas emission and outburst haz-ard in coal heading face,thus setting up a feasible and suitable assessment method for outburst hazard of protective seams.