高位钻孔对特厚煤层瓦斯抽放效果考察及分析
The Survey and Analysis Aiming at gas Drainage Effect of High Level Borehole for Extremely TlncK Coal Seam
摘要
本文阐述了高位钻孔抽放的基本原理和特点,利用数值模拟分析了采动影响下的特厚煤层上覆顶板岩层裂隙分布特征,并通过水帘煤矿3801综放工作面的高位钻孔抽放实验,对比论证了高位钻孔抽放的可行性,为特厚煤层的安全高效开采提供了保障。
Abstract
The paper expound the basic principle and characteristics of high level borehole drawing. Making use of the result of numerical simulation analyze the overlying roof strata＇s distribution feature of cracking which influenced by mining extremely thick coal
关键词
高位钻孔/特厚煤层/数值模拟Key words
The high level borehole/The extremely thick coal seam/Similar simulation引用本文复制引用
出版年
2011
NETL
NSTL
万方数据