混凝土重力坝施工期温度应力仿真分析及温控标准研究  

Simulation Analysis of the Temperature Stress of a Concrete Gravity Dam during Construction Period and Corresponding Temperature Control Standard

作　　者：曾淏 胡国平 ZENG Hao;HU Guoping(Jiangxi Province Anlan Engineering Consulting Co.,Ltd.,Nanchang 330095,China;Jiangxi Academy of Water Science and Engineering,Nanchang 330029,China)

机构地区：[1]江西省安澜工程咨询有限公司,江西南昌330095 [2]江西省水利科学院,江西南昌330029

出　　处：《水电与新能源》2022年第11期36-40,共5页Hydropower and New Energy

摘　　要：为分析研究温度荷载对某电站混凝土重力坝最高挡水坝段的影响,对其建立三维仿真模型,计算分析了施工期的温度场,研究温度荷载影响下的应力时空变化规律。仿真分析结果表明温度荷载具有较大影响,但坝体应力仍满足现行规范要求;经初步分析确定了其温控标准,为大坝混凝土施工的温控措施提供了技术依据。In order to analyze the influence of the temperature load, a three-dimensional simulation model of the highest water retaining monolith of a concrete gravity dam is constructed. The temperature field of the dam during construction period is calculated and analyzed to get the temporal and spatial variation of the stress under the influence of the temperature load. The results show that the temperature load has a great influence on the stress distribution while the stress of the dam body still meets the specification requirement. Also, temperature control standard is determined, which provides technical basis for the temperature control measures during the concrete construction of the dam.

关 键 词：混凝土重力坝 施工期 温度应力 仿真分析 温控标准 

分 类 号：TV642.3[水利工程—水利水电工程]