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航道疏浚施工中,如何用直观的图形来反映原地形地貌和后期的地形变化情况,用以控制施工进度和质量,是施工过程的重点和难点。以CASS数字测图所绘制平面二维图形为基础,结合Surfer软件所绘三维图形,对水底地形进行分析。该方法充分发挥三维模型在水深测量后期绘图中的优越性,取得了令人满意的效果。
In the construction of channel dredging, how to use the intuitive graphics to reflect the original topography and the later terrain changes to control the construction schedule and quality is the key and difficult point in the construction process. Based on the planar two-dimensional graphics drawn by CASS digital mapping and the 3D graphics drawn by Surfer software, the underwater topography was analyzed. The method gives full play to the superiority of the 3D model in the later stage of water depth measurement and achieves satisfactory results.