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面板堆石坝的安全依赖于良好的设计、施工和在大坝施工及运行期的实时监测,土工监测技术和测绘技术可以用来监测大坝位移,并对大坝的非正常变形提供预警。面板堆石坝一般在施工期和蓄水期会发生较大变形:在施工期,堆石体和上游面板会因为自重而相互积压发生变形;在蓄水期,堆石体和上游面板会在水压力的作用下发生变形。为了保证面板的整体性和大坝安全,特别要防止面板的变形超过其最大允许变形。由于对筑坝材料参数的不完全可知性和计算理论的不完善,必须对大坝及其周边变形进行严密监测以预防大坝发生较大变形。应用有限元方法对中国某面板堆石坝位移变化进行研究。
The safety of CFRD depends on good design, construction and real-time monitoring during dam construction and operation. Geotechnical monitoring and mapping techniques can be used to monitor dam displacement and provide early warning of abnormal dam deformation. In the construction period, the rockfill body and the upstream panel will be back-pressed with each other due to their own weight. During the water-storing period, the rockfill body and the upstream panel will be deformed Deformation under the action of water pressure. In order to ensure the integrity of the panel and dam safety, in particular, to prevent the deformation of the panel exceeds its maximum allowable deformation. Due to imperfect knowledge of dam material parameters and imperfect calculation theory, the dam and surrounding deformation must be closely monitored to prevent large deformation of the dam. The displacement of a concrete faced rockfill dam in China is studied by finite element method.