结合工程实践，对编制市政工程及公路工程土石方工程量依据、计算要点进行了论述。
Based on the practice, discussion is made on the calculating methods and principles of amount of municipal and highway engineering earthworks.
在工程测量中，测量土石方是一件很普通的工作。但在计算土石方过程中，经常会遇到一些很难解决的问题。
Surveying earthwork in engineering measure is a very common work, but in the course of calculating earthwork we often face some difficult problems to solve.
水利水电工程施工过程中常常需要获得一些小范围的DTM数据，用于地形测绘、开挖形态监测及工程土石方量计算等。
In construction of hydroelectric project, small range DTM data are often needed for topographic surveying, mapping, excavated form detection, earthwork calculation and so on.
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