东风水电站大坝垂线系统拟合计算

Fitting Calculation of Vertical System of Dongfeng Hydropower Station

东风水电站大坝步进垂线系统于2019年9月初瘫痪,已作报废处理。为确保监测数据的连续性,延续大坝的绝对水平位移,则需对另一套垂线系统(基康CCD垂线系统)的监测数据进行拟合计算。根据测点的安装情况,拟合方式采取了无缝衔接和跨时衔接。拟合成果显示两套垂线系统各测点的累计水平位移过程线几近重合,变化趋势及规律保持了很好的一致性。拟合后的基康CCD垂线系统监测成果值延续了大坝的绝对位移,可继续为大坝安全监测服务,为大坝安全运行性态分析提供可靠依据。

The stepped vertical system of Dongfeng Hydropower Station was paralyzed in early September 2019 and has been scrapped. In order to ensure the continuity of monitoring data and continue the absolute horizontal displacement of the dam, the monitoring data of another set of vertical system(Geokon CCD vertical system) need to be fitted and calculated. According to the installation of measuring points, the fitting method adopts seamless connection and cross-time connection. The fitting results show that the cumulative horizontal displacement process lines of each measuring point of the two sets of vertical systems are almost coincident, and the change trends and laws maintain good consistency. The fitted monitoring results of Geokon CCD vertical system continue the absolute displacement of the dam, which can continue to serve the dam safety monitoring and provide a reliable basis for the analysis of dam safety operation behavior.