为保障回采工作面安全生产,通过分析近几年回采工作面的突出案例,找出了突出工作面区域防突技术存在的问题,并提出了相应的解决方案。研究结果表明:回采工作面普遍存在瓦斯基础参数缺乏,突出区域预测和区域防突措施效果检验指标不合理,地质构造带区域防突措施不到位,回采工作面开拓部署不合理,区域措施效果检验方法不完善等问题;针对以上问题提出如下对策:大量测试瓦斯基础参数,掌握回采工作面的瓦斯赋存规律,根据煤层的变质程度考察区域预测瓦斯含量临界值,编制回采工作面瓦斯地质图,加强地质构造带抽放钻孔的施工力度,合理布置采掘工作面,确定合理的瓦斯抽放预抽期,进行工作面消突效果预评价,确定检验孔的布置原则。

In order to protect the safety production of the coal mining face, the outburst cases of the coal mining faces in recent years were analyzed to seek the ex isted problems of the regional outburst prevention technology for coal mining face with the outburst in potential and to provide the related solutions.The study results sh owed that the coal mining face would lack the gas basic parameters generally and would have the irrational outburst regional prediction and the irrational effect inspecti on index of the regional outburst prevention measures, the improper regional outburst prevention measures of the geological structure zone, irational development layo ut of the coal mining face, the improper effect inspection method of the regional measures and other problems.To solve those technical problems, the following counter measures were provided, including the large number test of the gas basic parameters and the understanding on the gas deposit law of the coal mining face .According t 0 the seam degeneration degree, the critical value of the regional predicted gas content was investigated and the geological drawing of the coal mining face was prepar ed and made.The gas drainage boreholes constrution in the geological structure zone shall be enhanced.The layout of the excavation and mining working faces shall be rationally conducted.The gas drainage and gas pre-drainage period should be rationally set up.A pre-evaluation of the outburst elimination effect for the coal mining fac e shall be conducted and the principle of the checking borehole layout shall be set up.

国家自然科学基金资助项目(50904024)；国家重点基础研究发展计划(973计划)资助项目(2005CB221501)；河南省科技创新人才计划资助项目(084200510002)；