利用静力水准测量运营地铁竖向变形误差分析
Error Analysis for Measurement on Vertical Deformation of Existing Subway by Hydrostatic Leveling Sensor
摘要:
静力水准作为一种高精度的高程测量仪器在既有地铁的变形监测中应用广泛。但是列车运行会对静力水准的监测结果产生影响。为了更好的利用静力水准这一监测手段，本文结合工程实际，利用高精度静力水准仪对地铁隧道状况进行24小时实时监测，通过分析数据，探讨静力水准测量运营地铁竖向变形的误差，提出静力水准监测数据的选取方法，以确保既有地铁变形监测数据的准确性。
Abstract:
As a kind of high-precision measurement instrument, the hydrostatic leveling sensor system is widely used in measurement on the displacement of existing subway. However, the train opera-tion has an impact on the monitoring results. In order to make better use of hydrostatic leveling sensor system, combined with the engineering practice, the hydrostatic leveling sensor system is employed for 24 hours monitoring of existing subway. Based on the analysis of data, the error of measurement on vertical deformation of existing subway by hydrostatic leveling sensor is dis-cussed and the selection method of data is introduced.
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