论文部分内容阅读
作者通过在广东LNG(液化天然气)接收站项目中土石方工程中的实践,发现在南方CASS软件中,坐标点和DTM三角形是以空间立体模型存在的,切断的DTM三角形残留图元保持原三维立体属性这一特点,其表现为切断的残破DTM三角形边的矢量方向不变和原节点三维属性不变;并且手工绘制的DTM三角形可直接参加计算,其生成的DTM三角形文件也可参加计算,根据这一特点采取措施,应用DTM法计算土方工程量更加准确、快速、灵活,能适应复杂工程的土方量计算。
Through the practice of earthwork in the project of Guangdong LNG (liquefied natural gas) receiving station, the authors found that the coordinate points and the DTM triangles exist in the spatial spatial model in CASS software of the south, and the cut-off DTM triangular residual primitives maintain the original three-dimensional Attributes of this feature, the performance of the broken DTM triangular edge of the edge of the same vector and the original three-dimensional properties of the original unchanged; and hand-drawn DTM triangles can be directly involved in the calculation, the generated DTM triangle file can also participate in the calculation, according to This feature takes measures to calculate earthwork volume using DTM method more accurately, quickly and flexibly, and can be adapted to the earthwork calculation of complicated engineering.