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河道土方的内业计算一般为套断面,数方格,如果测量数据较多,地形复杂,则内业工作量很大。利用计算机和微积分原理编制程序,计算挖填土方,则可以大幅度地提高工作效率。1 程序编制1.1 建立数学模型 为了便于建立数学模型,本系统以垂直于大堤轴线的直线为X轴,和大堤轴线竖直相交的直线为Y轴建立平面直角坐标系,规定各实测点距大堤中心桩的距离为横坐标,各实测点的高程为纵坐标,
The earthwork calculation of the canal earthwork is generally a set of cross-section, the number of squares, if the measurement data is more complex terrain, then a lot of work in the home. The use of computer and calculus principles of preparation procedures, calculation of earthwork excavation, you can greatly improve work efficiency. A programming 1.1 The establishment of mathematical model In order to facilitate the establishment of mathematical models, the system perpendicular to the levee axis of the straight line as the X axis, and the dike vertical line perpendicular to the intersection of Y axis and the Cartesian coordinate system, the measured points from the center The distance of the pile is the abscissa, the elevation of each measured point is the ordinate,