基于机载LIDAR技术的输电线路优化设计研究
Research on Optimal Design of Transmission Line Based on Airborne LiDAR Technology
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摘要:
在南方地表植被茂密、地形复杂的山区，传统的航空摄影测量技术所获取的DEM和DSM成果精度低、输电线路野外勘测强度大，通过分析机载LIDAR技术的优势特点，以滇西北特高压输电线路优化设计为例，阐述了机载LIDAR技术在准确提取平断面、优化交叉跨越设计以及有效估算拆迁与青苗赔偿等路径优化中的应用，及其产生的经济效益。实践表明：将机载LIDAR技术应用于输电线路优化设计，可有效提高输电线路的设计质量，优化工程投资预算。 Abstract:In some areas with dense vegetation and complicated terrain, both DEM and DSM have low result accuracy when acquired by traditional aerial photogrammetry technique, which leads to strong field survey burden in the transmission line. In this paper, we analyzed the strengths of Airborne LiDAR Technology and took optimal design of Ultra-high voltage transmission line in Northwestern Yunnan as an example to illustrate the path optimization applications and their economic efficiency of Airborne LiDAR Technology, such as precisely extract plane and profile mapping, optimize crisscross spanning design and effectively estimate demolition and crop compensation. Thus, we demonstrate the feasibility of Airborne LiDAR Technology when it is applied to optimal design of Ultra-high voltage transmission line, which can efficiently improve the design quality of the transmission line and release construction budget.
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