1 mine,using ArcGIS software to analyze the data and acquiring surface contour,coal seam floor contour and coal seam thickness isoline in mine area.

• 影响顶煤垮落和破碎特性的主要地质因素有煤体强度、煤层采深、夹矸层特征、煤层厚度、煤体裂隙、煤层顶板特征等。