基于CASS9.0的河道绿化面积测量方法研究

Calculation method of river bank green area based on CASS9.0 software

为了提高河道绿化面积的计算精度,解决复杂河道边坡面积计算难的问题,同时给规划设计单位或施工甲乙双方的决算提供可靠依据。根据GPS实测的南川河谢家寨村段河道两侧绿地的坐标数据,利用南方CASS9. 0软件中的实体面积和表面积两种计算方法,分别计算出绿地的实体面积和表面积。结果表明:表面积法计算结果比实体面积法计算结果更符合地形现状,河道北侧表面积法比实体面积法计算结果多131. 88 m2,河道南侧表面积法比实体面积法计算结果多169. 46 m2,说明实体面积法适用于平坦无投影变化的场地计算面积,表面积法在不规则的地形计算中结果更为精确。

In order to improve the calculation accuracy of the green area of the river bank and solve the calculation problem of the slope area of the complex river,and provide a reliable basis for the fi-nal accounts of the planning and design units or construction parties,according to the coordinate da-ta of green areas on both sides of the river in Xiejiazhai Village section of Nanchuan River measured by GPS,the physical area and surface area of the green space were calculated using the two calcula-tion methods of the physical area and surface area with the South CASS9.0software.The results show that the surface area method calculation results are more in line with the terrain status quo than the physical area method calculation results.The area difference of the north bank of the river is131.88m^2,and the area difference of the south side of the river is169.46m^2,indicating that the physical area is suitable for flat and no projection changes in the site calculation area.The surface area is more accurate in irregular terrain calculations.