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首页> 外文会议>International Symposium on Geotechnical Measurements and Modelling; Sep 23-25, 2003; Karlsruhe, Germany >Influence of the zero reading time and position on geodetical measurements
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Influence of the zero reading time and position on geodetical measurements

机译：零读数时间和位置对大地测量的影响

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摘要

Geodetic measurements have become an accepted method to record tunnel deformations. With this increase in data quality different evaluation methods have been developed to assess the utilization of the support, as well as make short term predictions of the rock mass quality ahead of the excavation. The results from these evaluations are directly related to the quality of the input data. Settlement data from continuously measured chain inclinometers are used to assess the relative magnitude of the settlements occurring both ahead of the excavation and before the zero reading of the geodetic survey. It is shown that delays in this measurement can have a significant effect on the magnitude of the measured data and therefore on the quality of the evaluations made with this data.
机译：大地测量已成为记录隧道变形的一种公认方法。随着数据质量的提高，已经开发了不同的评估方法来评估支撑的利用率，并在开挖之前对岩体质量进行短期预测。这些评估的结果与输入数据的质量直接相关。来自连续测量的链式倾角仪的沉降数据用于评估在开挖之前和大地测量的零读数之前发生的沉降的相对大小。结果表明，这种测量的延迟可能会对测量数据的大小产生重大影响，从而对使用此数据进行评估的质量产生重大影响。

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