霍州矿区底板分类研究

Study on floor classification of HuozhouMiulng District

本文通过对霍州矿区各煤层底板比压、岩石强度和浸水崩解度的测定，研究了该区的煤层底板分类及其影响因素，文章强调崩解度对霍州矿区应是一个主要的分类参考指标，水可使该区底板降低１～２个类级。文章最后提出了预防单位支柱钻底的措施，并介绍了使用新产品空心柱鞋的优越性。

AbstractBy determination of the floor spocificpressure,strength and collapse degree in waterof rock,this paper studied the floor classification and the influence factors in Houzhu MiningDistrict.The paperr emphasized that the collapsedegree in water is major index of floorclassification in the district.Water may maketheclass of floor decrease 1 2 classes.The paperalso put forward a measure to prevent theindividual prop going into floor,and intreduceda new hollow prop shoes.