Application of multi-step sectional sealing technology in gas pressure measurement in coal seam by a downward borehole

被引：0
|
作者：
He, Qilin [1 ]
Peng, Wei [2 ]
机构：
[1] Minist Educ, Key Lab Coal Mine Safety & Effecient Exploitat, Huainan, Anhui, Peoples R China
[2] Anhui Univ Sci & Technol, Sch Energy & Safety, Huainan, Anhui, Peoples R China
来源：
MINE SAFETY AND EFFICIENT EXPLOITATION FACING CHALLENGES OF THE 21ST CENTURY | 2010年
关键词：
D O I：
暂无
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
In order to get the exact value of gas pressure, high-pressure grouting method is used to sealing fracture around the borehole in rock, which can block the connection between the borehole and the fracture in rock. This article introduces a method that using multi-step sectional sealing technology to mesure the gas pressure in broken coal seam. An advanced method to measure the gas pressure in coal seam comes up according to a large number of actual measurements and analysis of the borehole sealing technology, which has certain value of extension and application.
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页码：197 / 200
页数：4
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