摘要
结合西南地区某在建大坝工程,采用有限元反馈仿真分析方法模拟大坝基础置换块的真实温度和应力状态,从而弄清基础置换混凝土的内在开裂机理、明确不同时候的开裂风险,同时探讨避免此类置换混凝土开裂的有效温控方案和防裂措施,为类似工程的施工和防裂工作提供参考。
Based on the construction of a dam in Southwest China,the actual states of temperature and stress of the replacing concrete block for the dam foundation are simulated herein with the method of the finite element feedback simulation analysis,and then the inherent cracking mechanism of the replacing concrete and the cracking risks at different time periods are revealed,simultaneously,the relevant effective temperature control schemes and anti-cracking measures to avoid the cracking of such a kind of replacing concrete are discussed as well.This study can provide a reference for the similar project in the days to come.
出处
《水利水电技术》
CSCD
北大核心
2012年第1期57-60,68,共5页
Water Resources and Hydropower Engineering
基金
国家自然科学青年基金(50909105)
水利部行业公益科研专项(200801007)
国家科技支撑计划项目(2008BAB29B05)
中国水科院科研专项基金(材集1028
材集1118)
关键词
干热河谷
置换混凝土
温控
防裂
dry-hot valley
replacing concrete
temperature control
anti-cracking
