片块石路基在高温多年冻土区降温效果研究

片块石通风路基是一种典型的冷却路基的工程措施，为研究这种路基在高温多年冻土区的降温效果，进行了现场实体工程试验。试验结果表明，片块石路基可以产生对流换热机制，具有降温能力，有利于提高高温多年冻土区路基的热稳定性。

Study on Cooling Effect of Rubble (Block) Stone Subgrade in High-temperature Permafrost Regions

Rubble (block) stone ventilative subgrade is a typical engineering measure for cooling. For the purpose of studying such subgrade's cooling effect in high temperature permafrost regions, physical engineering test was conducted. The result shows that convective heat transfer mechanism may arise out of the rubble (block) stone subgrade, which plays a role of lowering the temperature and makes for increasing stability of the subgrade.