平原地区泵闸工程温控防裂优化与反馈研究  

Study on Optimization and Feedback of Temperature Control and Crack Prevention of Pump and Sluice Project in Plain Area

作　　者：程井[1] 张宇 李明志 程慎伟 李同春[1] CHENG Jing;ZHANG Yu;LI Mingzhi;CHENG Shenwei;LI Tongchun(College of Water Conservancy&Hydropower Engineering,Hohai Univ.,Nanjing 210098,China;CCCC Water Resources&Hydropower Construction Co.,Ltd.,Ningbo 315200,China)

机构地区：[1]河海大学水利水电学院,南京210098 [2]中交水利水电建设有限公司,浙江宁波315200

出　　处：《三峡大学学报（自然科学版）》2021年第2期1-7,共7页Journal of China Three Gorges University：Natural Sciences

基　　金：国家重点研发计划(2018YFC0407102);贵州省水利厅科技专项经费资助项目(KT201812);水利部堤防安全与病害防治工程技术研究中心开放课题基金资助项目(2018003)。

摘　　要：针对平原地区泵闸混凝土施工期开裂问题,应用通水冷却等效算法,依托HTG泵站进行了温控措施优化与反馈研究.经温控方案比选说明分期通水冷却措施能有效控制最高温度及降温速率.底板防裂效果表明泵闸工程采用河水冷却,并利用回水调整水温控制降温速率,可取得良好温控防裂效果.对比底板温度场反馈计算值与实测值,说明反馈模型合理、实验数据可靠、算法可行,可用于后续工程计算.Aiming at the cracking problem of concrete during construction period for pump stations or sluices in plain area,the optimization and feedback of temperature control measures are studied based on HTG pumping station using water cooling equivalent algorithm.The comparisons of different temperature control schemes show that the staged water-cooling measures can effectively control the maximum temperature and temperature dropping rate.The anti-crack effect of the bottom plate shows that river water can be used for the cooling of pump station or sluice project,and the backwater can be recycled to raise the cooling water temperature,so as to release the water drop rate by stages and to achieve a good effect of crack prevention.Comparisons between feedback results and measured values of the bottom plate temperature field validated the reliability of the feedback model,the experimental data and the algorithm,and thus they can be used for the future prediction of the project.

关 键 词：泵闸 底板 墩墙 温控防裂 通水冷却 

分 类 号：TV315[水利工程—水工结构工程]