Abstract: Regression analysis on the horizontal displacement monitoring data of dam sections No.17 and No. 22 of Baozhusi dam is carried out. The regression equation and influence components are obtained. At the same time, the accuracy of hydraulic pressure component is verified by application of deflection theory formula. The analysis method can be used for calibration of the hydraulic pressure components in deformation monitoring model for gravity dam, as well as for the determination of monitoring indexes for similar projects.

Key words: deflection, gravity dam, monitoring model, water pressure component, accuracy check

摘要： 对宝珠寺大坝17号和22号坝段顺流向水平位移监测资料进行统计回归分析，得到模型的回归方程及各影响分量，同时使用挠度理论公式验证了其中水压分量的精度。此分析方法对于重力坝变形监测模型中水压分量的精度校验、乃至确定相关项目的监控指标，有借鉴和参考意义。

关键词: 挠度, 重力坝, 监测模型, 水压分量, 精度校验