突出矿井延深水平突出危险性区域综合预测技术

发布时间：2018-10-31 12:32

【摘要】：在对国内外突出危险性区域预测理论和预测技术进行系统研究的基础上,基于白山坪矿井延深水平(-400~-600 m)的煤层赋存、顶底板条件、地质构造条件等情况,以延深水平开拓前与开拓后为时间区段,分别应用多种现有区域预测技术与方法进行水平、新采区和工作面的突出危险性区域预测,以提供科学、准确的预测结果,为科学合理采用防突技术提供关键依据.在对矿井延深水平3162工作面煤巷掘进的效果考察中发现,在采用区域综合预测结果分析后,仅对预测有突出危险性区域进行局部防突卸压后,经钻屑指标法对全工作面进行效果检验,其钻屑瓦斯解吸指标△h2和每个钻孔的最大钻屑量Smax均小于《防突规定》中的参考临界值,取得理想卸压效果.
[Abstract]:On the basis of systematic research on the prediction theory and prediction technology of outburst risk area at home and abroad, the occurrence of coal seam, roof and floor conditions, geological structure conditions and so on, are based on the depth level (-400-600m) of Baishan Ping Mine. In order to provide scientific and accurate prediction results, several existing regional prediction techniques and methods are applied to predict the outburst danger area of new mining area and working face in the time section before and after the extended level development. It provides the key basis for the scientific and reasonable use of anti-outburst technology. In the investigation of the effect of coal roadway driving in the 3162 coal face with extended depth level, it is found that after analyzing the regional comprehensive prediction results, only the local anti-burst pressure relief is carried out on the predicted areas with outburst risk. The results show that both the gas desorption index H2 and the Smax of each drill hole are less than the critical value of the reference value in "Anti-outburst Regulation", and the ideal pressure relief effect is obtained by using the method of drilling cuttings index to test the effect of the whole working face.
【作者单位】：湖南科技大学能源与安全工程学院;煤矿安全开采技术湖南省重点实验室;湖南黑金时代长沙矿业有限公司;湖南黑金时代白山坪矿业有限公司;
【基金】：湖南省科技厅计划一般项目(2012FJ4268) 国家自然科学基金资助项目(51274100,51274098)
【分类号】：TD745

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