乌东煤矿急倾斜特厚煤层瓦斯卸压开采技术研究

Study on Mining Inclined Thick Coal Seam and Treatment Technology of Gas in Wudong Colliery

针对乌东煤矿急倾斜特厚煤层复杂条件,采用数值模拟、现场开采试验和监测等方法,开展了急倾斜特厚煤层瓦斯共采可行性研究。通过上层开采卸压下层煤层,便于下层通过巷道抽采瓦斯,分析了上层开采对下层煤层的应力和瓦斯等气体运移规律的影响,设计了现场瓦斯治理技术方案和管理措施,同时进行了效果分析。

Aiming at complicated geological conditions of the deeply inclined thick coal seam in Wudong coal mine, numerical simulation, field exploration test and monitoring methods were carried out to study deeply the feasibility of thick coal seam gas and hydrogen sulfide exploitation. It is carried out at the same time effectiveness analysis, to achieve the safe exploitation, roadway drainage through easy to lower gas, the effects of mining on the upper gas migration law in stress and lower seam gas are analyzed. The design on-site gas management technology solutions and management measures are designed. At the same time, the effects are analyzed.