黄金峡泵站厂房坝段混凝土温控有限元分析
Finite Element Analysis of Concrete Temperature Control in Dam Section of Huangjinxia Pumping Station Powerhouse
柯贤博 1马腾 1韩发强1
作者信息
- 1. 陕西省引汉济渭工程建设有限公司,陕西西安 710010
- 折叠
摘要
水利水电工程是我国重要的基建工程,对发展国民经济和维护社会稳定起到至关重要的作用,因此其工程质量尤为重要.水利枢纽工程建设中会涉及到大体积混凝土碾压施工,由于温度或者工艺因素影响,会加重出现结构裂缝的风险,进而威胁大坝的安全,因此进行碾压混凝土坝段温控仿真有限元分析具有重要的现实意义.以黄金峡泵站厂房坝段为研究对象,对其混凝土施工过程进行温度场与温度应力仿真计算,分析结构温度场与温度应力时空分布规律以及变化情况.根据分析结果提出要合理控制温度,采取通水冷却,减少峰值温度,降低出现开裂的风险,提高工程施工质量.
Abstract
Water conservancy and hydropower project is an important infrastructure project in China,which plays a vital role in the development of national economy and the maintenance of social stability,so its engineering quality is particularly important.The construction of water conservancy project will involve the rolling construction of mass concrete.Due to the influence of temperature or process factors,the risk of structural cracks will be increased,which will threaten the safety of the dam.Therefore,it is of great practical significance to carry out the finite element analysis of temperature control simulation of roller compacted concrete dam section.Taking the dam section of Huangjinxia Pumping Station as the research object,the temperature field and temperature stress of the concrete construction process are simulated and calculated,and the spatial and temporal distribution and variation of the structural temperature field and temperature stress are analyzed.According to the analysis results,it is proposed to reasonably control the temperature,adopt water cooling,reduce the peak temperature,reduce the risk of cracking,and improve the construction quality.
关键词
水利水电工程/坝段混凝土/应力/温控/有限元分析Key words
Water conservancy and hydropower project/dam section concrete/stress/temperature control/finite element analysis引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据