A large amount of heat will be released to form temperature cracks during the hardening process of mass concrete,which will affect the safety and durability of the structure.Based on the raft project of deep foundation pits at the Huanggang Checkpoint Station in Shenzhen,the temperature change and thermal stress of mass concrete rafts after pouring are numerically analyzed by MIDAS/FEA,and the influences of different pouring methods on the hydration heat of mass concrete are compared and studied.Results show that the segmented layered beveled pouring can effectively reduce the early temperature rise of mass concrete and control the generation of surface cracks.
关键词
大体积混凝土/筏板基础/水化热/分层浇筑/仿真模拟
Key words
Mass concrete/Raft foundation/Hydration heat/Pouring in layers/Simulation
维普
万方数据