摘要
结合祁东井田瓦斯地质资料,基于井田构造平面变形系数、构造煤分布特征、瓦斯赋存分布特征等将祁东井田划分为4个瓦斯地质单元。以魏庙断层为界,北部为第Ⅰ、Ⅱ、Ⅲ单元,南部为第Ⅳ单元。分析发现影响各单元煤层瓦斯赋存的主要因素均不相同,第Ⅰ单元为煤层埋深,第Ⅱ单元为断层构造,第Ⅲ单元为岩浆岩,第Ⅳ单元为地层隆起造成的煤层瓦斯大量逸散。
Combined with the gas geological data of Qidong coalfield, based on coalfield structural plane deformation coefficient, tectonic coal distribution feature and gas occurrence distribution characteristic, Qidong coalfield can be divided into four gas geological units. Taking Weimiao fault as a boundary, its north locates unit Ⅰ , Ⅱ ,Ⅲ and the south is unit IV. By analysis, it found that the main factors affacting each unit gas occurrence are different. The first unit is seam depth, the second unit is fault structure, the third unit is igneous rocks and the fourth unit is the seam gas mass loss caused by stratum uplift.
出处
《煤矿安全》
CAS
北大核心
2013年第11期172-174,共3页
Safety in Coal Mines
基金
"十二五"国家科技重大专项资助项目(2011ZX05040-005)
关键词
祁东井田
构造变形系数
瓦斯地质单元
构造煤
瓦斯赋存
Qidong coalfield
structural deformation coefficient
gas geological unit
tectonic coal
gas occurrence
