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本文基于坝体内部温度场变化滞后于环境温度变化的现象,将连续变化的环境温度离散化,研究得到单个瞬时环境温度变化过程引起坝体温度位移的函数关系,并考虑了环境温度场的时空分布规律与水温、气温等之间的相关关系,将其在目标监测日进行多元函数泰勒展开,得到了大坝位移安全监控模型温度分量的改进表达形式,据此提出了改进温度分量的大坝位移统计模型.
Based on the phenomenon that the variation of temperature field inside the dam lags behind the change of ambient temperature, the continuously varying ambient temperature is discretized. The function of temperature displacement caused by a single instantaneous ambient temperature change is studied. The time-space of the ambient temperature field Distribution law and water temperature, air temperature and so on, and carries out Taylor expansion on the target monitoring day by multi-element function, and obtains the improved expression form of the temperature component of the dam displacement safety monitoring model, and accordingly proposes a dam with improved temperature component Displacement statistical model.