摘要
青洼煤业煤层埋藏浅,地势低洼,地表存在裂隙,井田范围内有河滩,雨季期间地表水大量渗入老空区。虽然在工作面回采前将老空区积水疏放完毕,但是由于地表水渗透至采空区进行补给,仍然在回采过程中存在较大隐患。通过对青洼煤业2207工作面相邻空巷进行注浆充填治理,截断相邻空巷水源补充,从根本上消除工作面回采期间水患威胁。由于注浆充填效果良好,避免了煤柱遭受破坏,可以在相邻工作面2206工作面采用小煤柱开采,提高了煤炭资源的回收率。
To solve the water threat of coal seam in Qingwa Coal Industry,grouting and filling treatment has been carried out on the adjacent abandoned roadway of the 2207 working face,cutting off the water source supplement of the adjacent abandoned roadway,and fundamentally eliminating the water threat during the mining period of the working face.Due to the good grouting filling effect and the avoidance of damage to the coal pillars,small coal pillars can be used for mining in the adjacent working face 2206,which improves the recovery rate of coal resources.
作者
王佐
Wang Zuo(Jinneng Holdings Equipment Manufacturing Group Shengtai Energy Investment Co.,Ltd.Jincheng,Shanxi 048000)
出处
《江西煤炭科技》
2024年第3期166-168,172,共4页
Jiangxi Coal Science & Technology
关键词
老空区积水
地表水补充
注浆充填
截断水源补充
goaf water
surface water supplementary
grouting filling
cut off water source supplement
作者简介
王佐(1980-),男,山西晋城人,2005年毕业于中国矿业大学,采矿工程师,现从事生产管理工作。
