摘要
杨村煤矿二、四采区放水试验是利用井下4个奥灰观测孔进行的。放水试验成果表明,二、四采区奥灰富水性中等,十三￣十四灰和奥灰含水层两者之间无明显的水力联系。放水试验成果对于评价该区十四灰和奥灰含水层对下组煤开采的影响、评价十四灰和奥灰水疏水降压的可能性、正确预计工作面涌水量均具有重要的意义。
The water draining tests, conducted through the four O-ash water observation holes at No.2 and No.4 mining areas of Yang Cun coal mine, show that the O-ash water in No.2 and No.4 mining areas has a medium level of water bearing, and that no evident hydraulic link is found between the 13 - 14 ash and 0-ash water hearing layers. The test results demonstrates magnificent significance in asessment of the influence exerted hy 14 gray and O-water bearing layers to lower group coal mining, the possihility of water-drainage and pressure-reducing in 14 ash water and o-ash water, as well as predietion of the water-flow at the workface.
出处
《煤矿现代化》
2008年第3期60-62,共3页
Coal Mine Modernization
关键词
放水试验
采区
奥灰含水层
杨村煤矿
water draining tests mining areas O-ash water-bearing layer Yancun Coal Mine
