| 基于近景摄影测量的基坑土方量计算及精度评价 |
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| 引用本文： | 李天子,刘志奇,杨振明,王晓华.基于近景摄影测量的基坑土方量计算及精度评价[J].测绘工程,2017,26(9). |
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| 作者姓名： | 李天子 刘志奇 杨振明 王晓华 |
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| 作者单位： | 河南理工大学 测绘与国土信息工程学院,河南 焦作,454000 |
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| 基金项目： | 河南省基础与前沿技术研究项目，国家测绘局基础测绘研究基金资助项目，河南省科技攻关基金资助项目 |
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| 摘 要： | 土方量的计算是工程建设中的重要环节,计算精度将对合理选择施工方案有很大影响。针对传统土方量测量方法外业任务繁重、作业复杂、不能快速计算等问题,提出一种以非量测数码相机、多基线数字近景摄影测量为基础,通过获取DTM数据来计算土方量的方法。研究表明,与传统测量方法相比,计算结果误差小于5%,满足土方量计算的精度要求。也验证了近景摄影测量用于土方量计算的实用性和可行性,为快速、精准计算土方量提供了可靠途径。
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| 关 键 词： | 近景摄影测量 多基线 非量测相机 土方量计算 |
Calculation and precision evaluation of foundation pit earthwork based on close-range photogrammetry |
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| LI Tianzi,LIU Zhiqi,YANG Zhenming,WANG Xiaohua.Calculation and precision evaluation of foundation pit earthwork based on close-range photogrammetry[J].Engineering of Surveying and Mapping,2017,26(9). |
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| Authors: | LI Tianzi LIU Zhiqi YANG Zhenming WANG Xiaohua |
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| Abstract: | The earthwork calculation is an important part in engineering construction.Computational accuracy has a great impact on the choice of reasonable construction scheme.To resolve the problem of traditional earthwork measurement method, which is heavy outside tasks, complex operations, slow calculation speed, this paper proposes an earthwork calculation method based on multi-baseline close-range photogrammetry with DTM data.Research result shows that the calculation error is less than 5% that meets the requirements of earthwork calculation accuracy by comparing with the traditional measurement method.Furthermore, the practicability and feasibility of close-range photogrammetry for earthwork calculation is verified.It provides a reliable way to calculate the earthwork quickly and precisely. |
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| Keywords: | close-range photogrammetry multi-baseline non-metric camera earthwork calculation |
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