| 廊道布置对混凝土重力坝冻融破坏特性影响研究 |
| |
| 引用本文： | 李文博,熊勃勃,陈博夫,杨玉朋. 廊道布置对混凝土重力坝冻融破坏特性影响研究[J]. 水力发电, 2021, 0(5): 56-60 |
| |
| 作者姓名： | 李文博 熊勃勃 陈博夫 杨玉朋 |
| |
| 作者单位： | 三峡大学水利与环境学院 |
| |
| 基金项目： | 广西水工程材料与结构重点实验室项目(GXHRI-WEMS-2020-10);国家自然科学基金(52009068,51509142)。 |
| |
| 摘 要： | 冻融破坏是混凝土重力坝常见耐久性问题之一.通过大坝渗流和温度仿真分析确定潜在冻融破坏区域,基于已有混凝土冻融损伤本构模型分析大坝的塑性损伤分布,以此评价廊道布设形式对重力坝冻融损伤特性的影响.分析结果表明:混凝土结构的抗冻特性不等同于其本体材料抗冻特性,合理增设廊道数量对混凝土重力坝抗冻耐久性有利,该研究成果能为严寒区...
|
| 关 键 词： | 混凝土重力坝 廊道 冻融损伤 强度折减 耐久性 |
Study on the Influence of Corridor Layout on Freeze-thaw Damage Characteristics of Concrete Gravity Dams |
| |
| LI Wenbo,XIONG Bobo,CHEN Bofu,YANG Yupeng. Study on the Influence of Corridor Layout on Freeze-thaw Damage Characteristics of Concrete Gravity Dams[J]. Water Power, 2021, 0(5): 56-60 |
| |
| Authors: | LI Wenbo XIONG Bobo CHEN Bofu YANG Yupeng |
| |
| Affiliation: | (College of Hydraulic and Environmental Engineering,China Three Gorges University,Yichang 443002,Hubei,China) |
| |
| Abstract: | The freeze-thaw damage is one of the common durability problems of concrete gravity dams.The potential freeze-thaw damage areas are determined through seepage and temperature simulation analysis,and the plastic damage distribution of the dam is analyzed based on existing constitutive model of concrete freeze-thaw damage for evaluating the influence of corridor layout on the freeze-thaw damage characteristics of gravity dam.The results show that the frost resistance of concrete structure is not equivalent to the frost resistance of its body materials,and the reasonable number of corridors is beneficial to the durability of concrete gravity dams.The research results can provide reference for the design of frost resistance and durability of gravity dams in severe cold regions. |
| |
| Keywords: | concrete gravity dam corridor freeze-thaw damage strength reduction durability |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
