The No.12404 working face of Daliuta coalmine has a shallow buried coal seam under thick loosened aquifer with only thin bedrock there under,and the Muhe runnel flowing across on the surface.

• 大柳塔煤矿12404工作面煤层埋深浅、上覆基岩薄、松散含水层厚,地表让有母河沟横过。