拉西瓦拱坝施工期温度应力反演计算与典型坝段裂缝成因分析  

Temperature Stress Inversion Calculation and Analysis On the Causes of Cracks in Typical Dam Sections during Construction Period of Laxiwa Arch Dam

作　　者：雷丽萍 黄天润[1] LEI Liping;HUANG Tianrun(Powerchina Northwest Engineering Corporation Limited,Xi'an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《西北水电》2020年第S01期60-66,共7页Northwest Hydropower

摘　　要：主要依托拉西瓦水电站工程,结合拉西瓦拱坝基本体型参数和施工期实测气象资料、施工期及运行期大坝监测资料和现场实际的温控措施,对坝体施工期温度应力进行全过程反演分析计算,进一步分析了高寒地区高拱坝混凝土施工期温度应力的实际变化规律,并对施工过程中出现的典型裂缝进行了裂缝成因分析。Based on the Laxiwa Hydropower Station project,combined with the structural parameters of the Laxiwa Arch Dam and the measured meteorological data during the construction period,the dam monitoring data during the construction and operation periods and the actual temperature control measures on site,the whole process inversion analysis and calculation of the temperature stress of the dam body during the construction period is carried out,and the actual change law of the temperature stress of high arch dam concrete in the Alpine-cold area during the construction period is further analyzed,and the cause of the typical cracks in the construction process is analyzed.

关 键 词：拉西瓦拱坝 施工期温度应力反演 裂缝成因分析 

分 类 号：TV642.4[水利工程—水利水电工程] TV315