Research and realization of cut/fill computation method based on ArcGIS

Based on the actual need and the shortage of the correlative computation,the computation method which can ensure the precision and meet the actual need of cut/fill computation is introduced in the paper.After analyzing the process of the computation,the author gives the method to implement the computation based on ArcGIS,and then establishes an application module of cut/fill calculation for a sea-span bridge.After giving the analysis on the precision of the computation,the author affirms the compution further.