水资源与水工程学报2016，Vol.27Issue(6)：146-152,7.DOI:10.11705/j.issn.1672-643X.2016.06.26
某碾压混凝土重力坝施工温控措施研究
Research on temperature control measures in construction of a roller-compacted concrete gravity dam
摘要
Abstract
During the construction and operation of roller-compacted concrete ( RCC) gravity dam, to control the generation of cracks is a key problem to consider. The study of specific temperature control measures can provide a important technical guidance for the future. Taking an instance of a RCC gravity dam project, the large-scale software ANSYS was used to establish models, and the three-dimensional finite element relocating mesh method was used to simulate the RCC dam construction process. According to the project construction progress and thermodynamic parameters of the compacted concrete, against the measures of pouring temperature and water cooling, three temperature control schemes were proposed pre-liminary, and the temperature and stress of each scheme were analyzed. The results showed that, in the high temperature seasons, to pour concrete had greater influences on the temperature and stress of the dam body, which easily induced cracks. By controlling the measures of pouring temperature and cooling with water, the maximum temperature decreased effectively, and the dam maximum stress met the re-quirement of permitted stress for roller-compacted concrete dam. This research can provide references for the temperature control designs of similar projects.关键词
碾压混凝土重力坝/温度场/温度应力/温控措施Key words
concrete RCC dam/temperature field/temperature stress/temperature control measures分类
建筑与水利引用本文复制引用
漆焕然,李守义,张晓飞,顾冬冬..某碾压混凝土重力坝施工温控措施研究[J].水资源与水工程学报,2016,27(6):146-152,7.基金项目
国家自然科学基金项目(51579208、51409207) （51579208、51409207）
