冻结法施工环境高强度大体积混凝土温度场演化规律  

Evolution rules on temperature field of mass concrete with high strength in freezing construction method environment

作　　者：王军[1] 张祥吉 李长生 郭玉超 田一男 WANG Jun;ZHANG Xiangji;LI Changsheng;GUO Yuchao;TIAN Yinan(School of Civil Engineering and Geomatics,Shandong University of Technology,Zibo 255049,China;Administration Centre of Taihe Water Reservoir,Zibo 255500,China;Zichuan District Water Conservancy Bureau of Zibo City,Zibo 255100,China;Engineering Technology Research Institute Corporation of China Petroleum Group,Beijing 102206,China)

机构地区：[1]山东理工大学建筑工程与空间信息学院,山东淄博255049 [2]淄博市太河水库管理中心,山东淄博255500 [3]淄博市淄川区水利局,山东淄博255100 [4]中国石油集团工程技术研究院有限公司,北京102206

出　　处：《混凝土》2024年第6期226-230,共5页Concrete

基　　金：国家自然科学基金(51908342)。

摘　　要：为了研究冻结法施工环境下大体积高强度混凝土温度场的影响因素和发展规律,以我国西部地区某煤矿主井大体积高强度混凝土井壁为例,采用数值分析软件,研究混凝土强度等级、井壁厚度和环境温度对混凝土温度场的影响,并在施工现场进行温度监测。结果表明:数值模拟结果与现场监测结果温度场变化规律趋于一致;实测值比模拟值温度峰值低,出现的时间早;井壁混凝土厚度和强度等级对温度场影响明显。In order to research on the influencing factors and development laws of the temperature field of mass concrete with high strength in the construction environment of the freezing method,taking the mass concrete with high strength shaft line of a coal mine in western China as an example,numerical analysis software was used to study the influence of concrete strength grade,shaft thickness and ambient temperature on the concrete temperature field,and the temperature was monitored at the construction site.The results show that the numerical simulation results are consistent with the field monitoring results.The measured value is lower than the simulated temperature peak,and the time of occurrence is earlier.The thickness and strength grade of the shaft line concrete have a significant influence on the temperature field.

关 键 词：冻结法施工 大体积高强度混凝土 温度场 数值模拟 

分 类 号：TU528.01[建筑科学—建筑技术科学]