【摘要】 基础约束区是拱坝温控防裂工作中比较重要的部位,高温季节浇筑会增加温控防裂的难度.对锦屏一级高拱坝河床坝段的约束区混凝土建立了有限元模型,采用冷却水管的离散算法,对高温季节的施工过程进行了仿真计算,得到了模型的温度场和徐变应力场,根据计算结果提出了高温季节施工可行的温控措施,为设计和施工提供了重要的参考.更多还原

【Abstract】 The base restrained dam block in an arch dam is always regarded as important position in temperature control work which will be more difficult if the block is poured in summer.Finite element model is established for the restrained concrete block in the riverbed dam section of Jinping I high arch dam.The construction procedure in summer is simulated with the discrete cooling pipe algorithm to get the temperature field and creep stress field of the model.According to the computation results,the reasonable temperature control measures in summer construction are presented to the designers and builders for important reference.更多还原