摘要
碾压混凝土重力坝温控设计的重点在于控制基础温差、内外温差和新老温差,控制混凝土最高温度,以此达到防裂的目的。利用三维有限元法,对亚碧罗碾压混凝土重力坝温度场进行了多种温控方案的仿真计算,计算中考虑了混凝土绝热温升随时间的变化、通水冷却、分层浇筑和气温环境的变化等因素,得出了亚碧罗碾压混凝土重力坝合理的温控方案。
The design of temperature control of compacted concrete gravity dam is to control the fundamental temperature difference,internal and external temperature difference,new and old concrete temperature difference,and the maximum temperature of concrete so as to realize crack control.Three-dimensional finite element method is used in simulation calculation of many temperature control schemes of the temperature field of Yabiluo RCC Gravity Dam,in which the change of concrete thermal insulation temperature rise over time,cooling water,placement in layers and temperature environment are considered,and then reasonable temperature control program is derived.
出处
《水利水电工程设计》
2010年第1期12-16,共5页
Design of Water Resources & Hydroelectric Engineering
关键词
碾压混凝土
重力坝
温度场
仿真分析
有限元法
亚碧罗水电站
compacted concrete,gravity dam,temperature field,simulation analysis,finite-element method,Yabiluo hydropower station.
