摘要
工程建设中土石方是一个主体工程,为解决采用传统方法计算施工过程土石方费时费力、且计算精度不高的问题,文章提出一种基于倾斜摄影技术的土石方量计量方法。利用无人机航拍,采集地形的点云数据,经简化处理后采用泊松重建方法建立具有足够精度的施工前后两期地形表面模型,进行布尔运算后计算两期模型之间体积的差异量即为土石方量,形成了一套从数据采集到模型建立再到工程量计算的完整路径,并通过工程实例进行了方法验证与应用。结果表明该方法可满足实际工程应用中对土石方量的精度要求,为快速并准确计算土石方工程量提供了参考,具有可行性。
Earthwork is a main part in the construction process.In order to solve time-consuming,laborious problems and low accuracy of earthwork calculation in construction process by traditional methods,a method for earthwork calculation based on tilt photography was proposed.Firstly,the unmanned aerial vehicle(UAV)tilt photography was used to collect point cloud data of terrain.Then,after point cloud simplification,it established the terrain surface model for different construction periods through Poisson surface reconstruction method.Finally,the volume difference between the two models was calculated as the volume of earthwork after Boolean operations,forming a complete path from data acquisition to model establishment and then to earthwork calculation,and the method was verified and applied through the engineering example.The results showed that the proposed method can meet the accuracy requirements of earthwork in practical engineering applications,providing reference for fast and accurate calculation of earthwork quantity.
作者
杨轸
覃毅媚
Yang Zhen;Qin Yimei(Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China)
出处
《华东交通大学学报》
2022年第2期8-16,共9页
Journal of East China Jiaotong University
基金
国家重点研发计划项目(2018YFB1600301)。
关键词
土石方量计算
倾斜摄影
地形点云
表面重建
体积计算
earthwork calculation
tilt photography
terrain point cloud
surface reconstruction
volume calculation
