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三维激光扫描与贴近摄影测量技术在边坡防护网计量对比分析

Metrology of Slope Protection Networks based on 3D Laser Scanning and Nap-of-the-Object Photogrammetry Techniques
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摘要 为了解决传统的人工统计方式存在着准确率差、效率低、安全风险高等问题,分别采用三维激光扫描和贴近摄影测量技术,以水电站边坡防护工程为实验对象,研究了数据采集、数据处理、工程量统计等过程及方法,比较分析了工程量统计的准确度、工作效率和安全性。结果表明:三维激光扫描技术应用后节约时间26 h,工作效率提高87%;贴近摄影测量技术应用后节约时间25.5 h,工作效率提高了85%;贴近摄影测量技术能够获取边坡毫米级分辨率的三维模型,防护网识别和统计的准确率能够达到100%。两种方式均能满足准确、高效、安全的工程计量需求,有效规避人工作业方式的风险,可极大提高工作效率,对类似工程具有指导作用。 In order to solve the problems of poor accuracy,low efficiency and high security risk of the traditional manual statistical method,the three-dimensional laser scanning and Nap-of-the-Object Photogrammetry technology are adopted respectively.The slope protection project of hydropower station is taken as the study object.The processes and methods of data collection,data processing and engineering quantity statistics are studied,and the accuracy,work efficiency and safety of engineering quantity statistics are compared and analyzed.The results show that:the application of 3D laser scanning technology saves 26 h and improves the working efficiency by 87%;the application of Nap-of-the-Object Photogrammetry technology saves 25.5 h and improves the working efficiency by 85%;Nap-of-the-Object Photogrammetry technology is able to obtain the 3D model of slope with millimeter resolution,and the accuracy of the protection network identification and statistics can reach 100%.Both methods can meet the needs of accurate,efficient and safe engineering measurement,effectively avoid the risks of manual operation,greatly improve the work efficiency,and have a guiding effect on similar projects.
作者 赵延岭 李登安 张枝枝 马卫昭 杨学敏 林兴稳 ZHAO Yanling;LI Deng'an;ZHANG Zhizhi;MA Weizhao;YANG Xuemin;LIN Xingwen(PowerChina Northwest Engineering Corporation Limited,Xi'an 710065,China;Northwest Branch of National Hydropower Wind Energy Research Center,Xi'an 710065,China;College of Geography and Environmental Sciences,Zhejiang Normal University,Jinhua 321004,China)
出处 《西北水电》 2024年第3期15-20,共6页 Northwest Hydropower
基金 国家自然科学基金项目(41901290)。
关键词 工程计量 三维激光扫描 贴近摄影测量 engineering metrology 3D laser scanning Nap-of-the-Object Photogrammetry
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