基于强度储备法的混凝土坝位移监控指标研究

安全监控指标是监测大坝安全的重要指标,科学、合理地制定安全监控指标,并利用安全监控指标及时发现大坝的安全隐患,意义重大。在对混凝土坝位移变形进行有限元分析的研究中,提出了通过引入强度储备法来拟定大坝水平位移的1,2,3级监控指标。该方法所拟定的水平位移监控指标可以考虑大坝可能遭遇到的各种水位荷载,比采用常规方法拟定的监控指标更为合理,可以为综合评判和决策大坝的运行状况提供有效的依据。

Indexes of Monitoring Concrete Dam Displacement Based on Strength Reserve Method

Safety monitoring index is important for monitoring dam safety. In the analysis of displacement deformation of concrete dam by FEM, we determined the first, second and third level monitoring indexes of the dam’s horizontal displacement by employing strength reserve method. The monitoring indexes determined by the method takes the various water level loads into consideration, therefore is more rational than monitoring indexes by conventional methods. This research provides an effective basis for the comprehensive evaluation and decision of the dam operation conditions.