复杂地质条件下煤层瓦斯压力测试技术  

Testing Technology of Coal Seam Gas Pressure under Complicated Geological Conditions

作　　者：杨宏民[1] 焦云飞[1] 刘冠鹏[1] 

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

出　　处：《煤炭技术》2015年第2期159-161,共3页Coal Technology

摘　　要：针对裂隙发育顶板封孔难的问题,分析了水泥砂浆封孔技术的局限性。比较2类带压封孔技术,选用"两堵一注"封孔器封孔方法,阐述了封孔原理,并介绍了封孔工艺。现场测压结果准确地反映11-2煤层瓦斯压力,解决了裂隙发育条件下穿层孔封孔测压难题。Aiming at the difficult problem of hole sealing at fractured roof,analyzing the limitations of cement mortar hole sealing technology,comparing two kinds of pressure sealing technology,hole packer of two sealing and one grouting ' the method of sealing hole was proposed. Introduces the structure of the sealing principle,and also the sealing process. Measured results accurately reflected the gas pressure of 11-2 coal seam. Through beds hole pressure measured problems at the condition of the fracture development was solved.

关 键 词：两堵一注 裂隙发育顶板 封孔装置 煤层瓦斯压力测定 

分 类 号：TD712[矿业工程—矿井通风与安全]