本煤层测压多级变径封孔试验研究  

Experimental Research on Multistage Reducing Nipele Hole Sealing in Coal Measure Gas Pressure

作　　者：杨宏民[1,2] 郭怀广[1] 王兆丰[1,2] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]煤矿灾害预防与抢险救灾教育部工程中心,河南焦作454000

出　　处：《煤炭技术》2011年第7期85-87,共3页Coal Technology

基　　金：河南省重点攻关项目(092102310037);国家自然科学基金资助项目(50974056)

摘　　要：准确获取煤层原始瓦斯压力是有效开展瓦斯预测和防治工作的重要技术保障。针对以往本煤层瓦斯压力测定过程中出现的一些问题,以及单一孔径封孔工艺的局限性,提出了本煤层测压的多级变径封孔方法,分析了其优缺点,并在成庄矿加以应用,在试验现场取得了较好效果,为更好地指导矿井下一步制定瓦斯综合治理措施提供了技术支持和依据。Accurately obtaining; the original coal seam gas pressure is an important technical support for developing gas predication, and prevention. Aimming at some problems appeared in the process of the coal gas pressure measurement and the limiations of single hole diameter sealing, the method of reducing nipple hole sealing is put forward. Its advantages and disadvanta ges are analyzed. The method is applied in Chengzhuang Coal Mine. The better effects are obtained at the experiment site. It can provide technical support and basis for drawing up the gas hazard control measures.

关 键 词：瓦斯压力 多级变径封孔 水泥砂浆 聚氨酯 

分 类 号：TD712[矿业工程—矿井通风与安全]