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The principle and accuracy analysis of non-contact monitoring for tunnel based on free station of total station
Pages: 63-67
Year: Issue:  8
Journal: Geotechnical Investigation & Surveying

Keyword:  三维自由设站 三维坐标 精度评定 监控量测 隧道;
Abstract: 传统的隧道监控量测方法效率低,受人工、环境因素影响较大,为能快速、准确地完成隧道监控量测工作,本文提出基于全站仪三维自由设站的非接触隧道监控量测方法,同时推导了全站仪三维自由设站点和监测点的坐标计算、收敛值计算及精度评定的数学模型,在此基础上进行观测实验并对实验数据进行分析比较。研究和实验结果表明,该方法能够在隧道施工环境下实施,监测精度能够满足规范的要求,具有一次测量完成多个监测项目的优势,适合在隧道监控量测中应用。
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