田庄煤矿单体支柱作岩帽快速封堵奥灰出水技术

Tianzhuang Coal Mine Single Prop for Quick Seal Cap Ordovician Ash Water Technology

田庄煤矿主采下组石炭系薄层16、17层煤,开采煤层底板下伏十三、十四、奥灰承压含水层。为实现矿井对底板承压含水层的观测及矿井联合抽放水试验要求,井田32.07km2内施工奥灰水文长观孔20余个。水文孔因使用年限长、受矿压破坏,套管断裂、底鼓出水现象在全国各个矿山中时有发生。田庄煤矿利用单体支柱作岩帽,实现快速有效的封堵奥灰出水,开创了快速封堵奥灰出水的新思路。

Tianzhuang coal mine lower carboniferous main mining thin layer 16,17,coal mining under the coal floor v No.13,14 ,layer Ordovician Grey confined aquifer.Confined aquifer of the base for the realization of the mine for observation and mine joint pumping water test requirements,32.07 square kilometers mining field construction within the gray hydrological concept of long hole more than 20.Hydrological hole because of long service life,damage to the underground pressure,casing failure,the bass drum effluent phenomena occur in various mining in the country.Single prop is used as the cap rock of Tianzhuang mine to achieve fast and efficient of plugging the grey water,create a new way of thinking on quickly blocking the grey water.