摘要
量测技术水平是决定河工模型试验成果质量的关键因素之一。为此,介绍了近期在河工模型断面板制作、河势与流场观测、动床地形三维测量方面的研发成果,包括:提出了基于文本编辑的自动断面板脚本绘制方法,同时结合激光切割机的应用,解决了人工绘制断面板费时费力、数控雕刻机成本高和一般科研人员难以使用等问题;将无人机航拍技术应用于实验室河工模型试验流态、河势和流场观测,与常规固定式摄像机相结合,为试验成果的进一步分析提供了独特视角和丰富、可靠的参考信息;将运动结构恢复三维地形重建技术应用于河工模型冲淤地形测量中,并结合河工模型试验冲淤地形的特点提出具体应用方法。
On the basis of the description of the recent research and development achievements in the aspects of the fabrication of the section board of river engineering model, observation of river regime and flow field and the3-D moving bed topographic survey, a text editing-based method for drawing the script of the automatic section board is put forward, meanwhile, the problems of that manually drawing of the section board is time-consuming and strenuous, while the cost of CNC engraving machine is higher and it is to be difficultly used by the general scientific research personnel are solved in combination with the application of laser cutter. Moreover, UAV aerial photographic technique is applied to the observations of the flow pattern, river regime and flow field for the indoor river engineering model experiment and is combined with the conventional fixed camera, and then provides the unique prospective as well as rich and reliable referential information for the further analysis of the experimental result. Finally, the structure from motion with multi-view stereo (SfM-MVS) reconstruction technique is applied to the river engineering model for the measurement of the scouring and silt topography and then the specific application method of the technique is proposed herein in combination with the characteristics of the scouring and silt topography of the river engineering model experiment.
作者
刘春晶
曹文洪
刘飞
谷蕾蕾
鲁婧
耿旭
LIU Chunjing;CAO Wenhong;LIU Fei;GU Leilei;LU Jing;GENG Xu(State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing100048,China;Laboratory of Hydraulics and Sediment Science and River Training of Ministry of Water Resources,Beijing100048,China)
出处
《水利水电技术》
北大核心
2019年第8期122-127,共6页
Water Resources and Hydropower Engineering
基金
国家重点研发计划项目(2017YFC0405206)
国家自然科学基金项目(5167091342)
中国水科院基本科研业务费项目(WE0145 B532017,WE0145C032017)
关键词
河工模型试验
量测技术
地形测量
河势
断面板
river engineering model experiment
measurementtechnique
topographic survey
river regime
section board
