Besides,the predicting roles played by the isopach map of sand bodies of the roof(footwall) in coal seam for erosion zones are introduced,and the predicting methods,steps and examples are also given.

• 针对现有煤层冲刷带的分类及其命名存在的问题,提出了新的分类方案,阐述了煤层冲刷带各类型的主要特征,并介绍了煤层顶（底）板砂体等厚图对煤层冲刷带的预测作用,预测方法步骤及预测实例。