寒区隧道保温设防长度工程实践与研究进展综述
|
庞小冲 1( ), 朱小明 1, 穆彦虎 2,3( ), 张坤 4, 张力杰 2,3, 郑波 5, 李凌洁 2,3
|
Review on engineering practice and research progress on thermal insulation length of tunnels in cold regions
|
Xiaochong PANG 1( ), Xiaoming ZHU 1, Yanhu MU 2,3( ), Kun ZHANG 4, Lijie ZHANG 2,3, Bo ZHENG 5, Lingjie LI 2,3
|
|
图4. 寒区隧道与空气相互作用及保温设防示意图 注:Tmax和Tmin分别为洞口年最高温度和年最低温度,T0为设防标准温度,x0为设防长度
|
Fig. 4. Schematic diagram of interaction between air and tunnel structures in cold regions and determination of thermal insulation length: seasonally frozen ground region (a) and permafrost region (b) (Tmax and Tmin represent annual maximum temperature and annual minimum temperature at the entrance of tunnel, respectively; T0 represents thermal insulation standard temperature; x0 represents thermal insulation length)
|
|
|
|
|