【摘要】 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。更多还原

【Abstract】 According to some measured data of dam settlement deformation,concrete faceslab deflection and reinforcement stress of the Gongboxia concrete faced rock-fill dam,this paper comprehensively analyzes the dam settlement deformation characteristics and the law of the concrete faceslab deflection and reinforcement stress of the dam.Various kinds of survey points are arranged and the physical causes and annual change of the concrete faced rock-fill dam is analyzed.The result indicates that different methods of observation give consistent results,reflecting the law of stress and deformation of the concrete faceslab.The time effect has some influence on the stability of dam and concrete faceslab;thus,its observation and analysis should be strengthened.更多还原