大型U型渡槽正常运行寒潮期仿真分析  

Simulation Analysis of Large-scale U-type Aqueduct under Cold Wave Period

作　　者：王潘绣[1] 赵海涛[1] 

机构地区：[1]河海大学土木与交通学院,江苏南京210098

出　　处：《水电能源科学》2010年第7期92-94,共3页Water Resources and Power

基　　金："十一五"国家科技支撑计划基金资助重大项目(2006BAB04A05)

摘　　要：针对跨流域调水工程中关键的裂缝问题,通过对南水北调中线湍河渡槽运行期寒潮工况和保温工况的计算分析,归纳了大型U型渡槽秋冬寒潮工况下温度场、温度应力分布规律及裂缝可能出现区域。结果表明,U型渡槽运行期遭遇寒潮可能导致边墙外侧和底板底面出现裂缝,建议应采取一定保温措施。Crack is a key problem of interbasin water transfer project.Based on the simulated calculation of aqueduct in middle routes of projects for diverting water from the south to the north under the operation conditions of cold wave and insulation,the distribution rules of temperature and stress filed and the potential crack range of large-scale U-type aqueduct are summarized.The results show that the U-type aqueduct is probable to cause crack on outside of sidewall and bottom slab during the cold wave period operation.Thus,some protection measures should be adopted.

关 键 词：渡槽 运行期 寒潮 仿真分析 Wave Period 跨流域调水工程 应力分布规律 南水北调中线 裂缝问题 工况 温度场 计算分析 保温措施 区域 秋冬 结果 归纳 底板 边墙 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程] TV7[水利工程—水利水电工程]