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结合公伯峡面板堆石坝坝体沉降变形、面板挠度和钢筋应力的实测资料,分析了坝体沉降变形规律以及面板挠度和钢筋应力的时间、空间变化规律;针对混凝土面板的各种观测方法布置的测点,进行了物理成因解析及年变幅分析。分析成果表明,不同观测方法得出的观测成果具有一致性,反映了大坝混凝土面板的变形和应力规律,时效因素对坝体和面板的稳定性有一定的影响,应加强观测和分析。
Combined with the measured data of settlement, panel deflection and reinforcement stress of dam body of Gongboxia Concrete Face Rockfill Dam, the law of settlement deformation of the dam body and the time and space variation of panel deflection and reinforcement stress are analyzed. According to various observation methods of concrete faceplate, Arrangement of measuring points, the physical causes of analysis and annual amplitude analysis. The analysis results show that the observation results obtained by different observation methods are consistent, reflecting the deformation and stress laws of concrete dam panels. Aging factors have some influence on the stability of dam body and panel, so the observation and analysis should be strengthened.