摘要
对混凝土坝位移与影响因素相关分析的基础上,考虑混凝土坝系统演化过程中的非线性动力学特性,综合应用相空间理论、动力学结构突变理论等数值分析手段,有效辨识了测值突变位置。针对突变后形成的相对稳定的动力结构,探讨了混凝土坝长效服役安全监控模型的构建原理与算法。文末通过某混凝土拱坝实例验证,表明所提出的安全监控模型对混凝土坝位移的实时监测和预警都有重要意义。
Based on correlation analysis in displacement of concrete dam and its influencing factors, considering the com- plex nonlinear properties in the process of evolution of concrete dam, and integrated applying phase space reconstruction, dynamic structure mutational theory and other numerical analysis methods, effectively identified the mutational position. In response to the relative stability dynamic structure, this paper studies the realization method and principle of the safty monitoring model to concrete dam for long-term service. Through a concrete arch dam instance indicates that the fitting and prediction precision of the concrete dam displacement monitoring model can be effectively improved.
出处
《水科学与工程技术》
2012年第5期1-5,共5页
Water Sciences and Engineering Technology
基金
水利部公益性行业专项项目(201201016)
江西省科技支撑项目(2010BSA16800)
南昌工程学院青年基金项目(2010KJ003)
关键词
混凝土坝
位移混合模型
混沌理论
动力结构系统
concrete dam
displacement mixing model
chaos theory
dynamic structural system
