山东煤炭科技Issue(10)：67-69,3.DOI:10.3969/j.issn.1005-2801.2014.10.30
基于CFD的远距离煤层卸压瓦斯抽采数值模拟研究
Numerical Analysis of Relieved Gas Drainage in Long-distance Coal Seam Based on CFD Method
宋兆国 1李可可 1张继健2
作者信息
- 1. 济宁矿业集团霄云煤矿，山东金乡 272213
- 2. 中国矿业大学安全工程学院，江苏徐州 221116
- 折叠
摘要
Abstract
To investigate the lfow rules of goaf in the condition of surface borehole for relieved gas in overlying long-distance coal seam, the geometric model of goaf with “three zones” was established and the method of numerical simulation was adopted. The results show that the porosity and permeability of goaf surrounding is high, which are the main passage for lfow of gas. The central goaf of vertical direction has the characteristic of the gas concentration increases ifrst and then stay the same. It’s easy for the relieved gas in the bending zone to lfow toward the borehole, but dififcult to pour into the underpart of goaf.关键词
地面钻井/远距离保护层/采空区“三带”/FLUENT模拟Key words
surface borehole/overlying long-distance coal seam/three zones of gob/FLUENT simulation分类
矿业与冶金引用本文复制引用
宋兆国,李可可,张继健..基于CFD的远距离煤层卸压瓦斯抽采数值模拟研究[J].山东煤炭科技,2014,(10):67-69,3.
