BSG高碾压混凝土拱坝温度场仿真分析  

Simulation analysis of temperature field of BSG high RCC arch dams

作　　者：赵文光 邱焕峰 ZHAO Wenguang;QIU Huanfeng(China Railway Resources Group Co.,Ltd.,Beijing 100039,China;Power China Guiyang Engineering Corporation Limited,Guiyang 550081,China;School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]中铁资源集团有限公司,北京100039 [2]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081 [3]武汉大学水利水电工程学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2020年第S01期299-303,共5页Engineering Journal of Wuhan University

基　　金：贵州省科技计划项目(黔科合基础[2016]1154、黔科合支撑[2018]2809、黔科合支撑[2019]2869号)

摘　　要：BSG水电站位于刚果(金)科卢维奇市卢阿拉巴河上,挡水建筑物为碾压混凝土双曲拱坝,坝高141.5 m,是国外最高的碾压混凝土双曲拱坝,也是刚果(金)最高的拱坝。基于工程所在区域水文气象特点,考虑施工-蓄水-运行等工程建设过程,采用有限单元法,开展了BSG拱坝施工期温度场及运行期温度场仿真分析。研究成果表明:1)BSG拱坝坝体分缝方案和浇筑计划均满足温控防裂要求;2)大坝运行阶段坝体温度应力均在允许范围内,封拱温度合理可行。The BSG hydropower station is located on the Lualaba River in Kolwich,Congo.The water-retaining structure is a RCC double-curved arch dam,whose height is 141.5 m.The dam of the BSG hydropower station is the highest RCC double-curved arch dam in Africa and is also the highest arch dam in Congo.Based on the hydrology and meteorological characteristics of the project area,and considering the construction,storage,and operation procedure,a finite element method is used to carry out a simulation analysis of the temperature field during construction and operation.The research results show that:1)BSG arch dam body jointing scheme and pouring plan meet the requirements of temperature control and crack prevention.2)The dam body temperature stress during the dam operation stage is within the allowable range,and the arch closing temperature is reasonable and feasible.

关 键 词：BSG拱坝 碾压混凝土 温度场 有限单元法 

分 类 号：TV642.4[水利工程—水利水电工程]