上海世博会电力电缆隧道的长期温度预测  

Long Term Temperature Prediction of Shanghai Expo Power Cable Tunnel

作　　者：王固萍[1] 韩晔[1] 孟毓[2] 

机构地区：[1]上海市电力公司电网建设公司,200002 [2]上海市政工程设计研究总院,200092

出　　处：《特种结构》2009年第6期11-15,共5页Special Structures

摘　　要：结合对上海地区电缆隧道热场的研究,分析了电缆的发热量与隧道温度分布情况的关系;通过所建立的数值模型,计算分析了隧道内的电缆发热引起的隧道热场,得到了500kV世博隧道热场随时间、电缆发热的变化规律,并采用了缩小比例试验及现场验证手段对模型准确性进行了验证。最后,提出了通过冬季通风方式降低500kV世博隧道温度的措施。Combined with the study of thermal field of cable tunnel in Shanghai area, the relationship between cable heat and temperature distribution in the tunnel is analyzed. Thermal field caused by cable heating inside the tunnel is calculated and analyzed through the establishment of a numerical model, the changing regularity according to the time and cable heating of 500kV Expo was also got. The model accuracy is validated by the reduced scale tests and field-proven means. Finally the measures to reduce the temperature of 500 kV Expo tunnel through winter ventilation is submitted.

关 键 词：500KV电缆 世博 隧道 热场 温度负荷 

分 类 号：U459.9[建筑科学—桥梁与隧道工程] TQ545[交通运输工程—道路与铁道工程]