摘要
根据西北口面板堆石坝混凝土面板温度应力计算成果，结合观测资料显示的面板裂缝的特征，讨论了垫层料对混凝土面板的约束情况，提出了不同于大坝混凝土的强弱约束概念。
A research of the restrain problem of the face plate of CFRD is conducted based on the thermal stress of the face plate of CFRD in Xibeikou, combined with the measurement of the crack characteristics. A concept of strong and weak restains different from the concrete dam is presented.
关键词
混凝土面板
强弱约束
变温荷载
堆石坝
concrete face plate
strong and weak restrain
thermal load
thermal stress
