| 基于精密三角高程测量的基坑变形监测方法研究 |
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| 引用本文： | 喜文飞,史正涛.基于精密三角高程测量的基坑变形监测方法研究[J].测绘与空间地理信息,2013(10):263-265. |
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| 作者姓名： | 喜文飞 史正涛 |
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| 作者单位： | 云南师范大学旅游与地理科学学院,云南昆明,650092 |
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| 摘 要： | 传统的基坑监测中，几何水准测量工作效率低，任务量大。针对这些不足，本文采用一种新的三角高程测量方法进行变形监测，该方法可以使全站仪在任意点设站，减少了工作量，在测量中，不用量取仪器高、棱镜高，减少了三角高程测量中的误差来源，提高了精度。通过分析三角高程测量的精度，验证了精密三角高程测量代替几何水准测量的可行性与可靠性，结合基坑监测实例，将三角高程测量的数据与几何水准测量的数据进行比较．比较的结果显示，该三角测量方法结合精密全站仪可以替代几何水准测量，在实际工作中具有一定的适用性和参考价值。
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| 关 键 词： | 几何水准测量 精密三角高程测量 变形监测 误差 精密全站仪 |
The Research and Application of Precision Trigonometric Elevation Measurement in Foundation Pit Monitoring |
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| XI Wen-fei
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SHI Zheng-tao.The Research and Application of Precision Trigonometric Elevation Measurement in Foundation Pit Monitoring[J].Geomatics & Spatial Information Technology,2013(10):263-265. |
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| Authors: | XI Wen-fei SHI Zheng-tao |
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| Institution: | XI Wen - fei, SHI Zheng - tao ( College of Tourism and Geographic Sciences, Yunnan Normal University, Kunming 650092, China) |
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| Abstract: | In the traditional foundation pit monitoring, geometrical leveling has low efficiency and large amount of tasks. Due to the shortage of the conventional geometric leveling measurement, a new way of trigonometric leveling method for deformation monitoring is conducted. It features measuring with any setting station without measuring the height of instrument and prism, which reduces the sources of error and the field workload to improve accuracy. Analysis of trigonometric leveling precision monitoring, the monitoring of trigonometric elevation measurement precision and feasibility of its alternative Geometrical leveling and reliability are discussed. Com- bined with the practice of foundation pit monitoring, the triangle elevation survey data and geometric leveling data are compared. The result shows that the triangulation method combined with the precision of total station can replace the geometric. The above mentioned way of measuring can be applied to some cases and offers certain reference. |
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| Keywords: | geometrical leveling precise trigonometric leveling deformation monitoring error precision electronic total station |
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