水工建筑物在施工前，先要按照设计图上的坐标高程与轮廓形状实地放样；建成后，又要将实际形状准确测制成竣工图，作为检查验收、科学研究和运行参考的基本资料。因此，和放样一样，竣工图的测量也是十分重要的。几年来，由于需要，我们在实际工作中革新和使用了一些方法，根据个人体会党得是比较好的，因此把它介绍出来。由于水平所限，不当或错误的地方，请读者指正。 Before the construction of a hydraulic structure, it is necessary to lay out the site in accordance with the coordinate elevation and contour shape on the design drawings; after completion, the actual shape shall be accurately measured as an as-built drawing, as basic information for inspection, acceptance, scientific research and operation reference. . Therefore, as with lofting, measurement of as-built drawings is also very important. Over the past few years, due to needs, we have innovated and used some methods in our actual work. Based on our personal understanding of the Party, it is better to introduce it. Due to the level of limitation, improper or wrong place, please correct the reader.