摘要
With the development of deep coal resources, research on the water stability of soft rocks containing coals becomes very important. In Juye Coal field, the roof rocks and floor soft rocks, mainly consists of mudstone at 900~1 200 m below surface, is typical soft rocks for deep coal. The macro features and micro cale degradation mechanism of deep coal soft rocks in water in Juye Coal Field have been analyzed by water stability experiment, X-ray diffraction and scanning electron microscopy. The result shows that the water stability of soft rocks is poor, and soft rocks startet to disintegrate in 30 minutes after being soaked.