矸石充填技术在深部中厚煤层中的应用

Application of Gangue Filling Technology in Deep Medium-thick Coal Seam

以王楼煤矿三采区13313充填工作面为研究背景,通过对三采区地质采矿条件的分析,根据地表村庄和建筑物分布状况,对工作面充填开采的原理,充填体压缩量及地表移动预测进行分析,提出了利用矸石充填工作面老空区开采方法。通过对水准基点观测,充填开采地表最大沉降在210 mm,能有效的控制顶板,提高煤炭资源回采率,避免了传统的村下开采造成严重的生态与人文环境破坏。

Taking the 13313 filling working face in the third mining area of Wanglou coal mine as the research background, based on the analysis of the geological and mining conditions in the three mining areas and the distribution of villages and buildings on the surface, the principle of filling mining in the working face, the amount of filling body compression and the prediction of surface movement are analyzed, and the goaf mining method using gangue filling working face is put forward. Through the observation of the water level base point, the maximum settlement of the filling and mining surface is210 mm, which can effectively control the roof and improve the recovery rate of coal resources,avoiding the serious ecological and human environment damage caused by traditional village mining.