多年冻土区路基片石保温护坡效果研究

Analysis on the Cooling Effect of Block Stone Heat Preservation Revetment Embankment in Permafrost Regions

片石保温护坡是保护多年冻土的一种有效工程措施。本文结合国道214线病害整治工程和共和至玉树高速公路及青藏铁路试验工程的测试资料,通过片石护坡路基与普通路基的对比分析,研究在路基边坡上铺设了片石层后,片石层对路基及基底多年冻土降温效果特征。

Block stone heat preservation revetment embankment is one of effective engineering measure on protecting permafrost. The paper on the base of test materials of the engineering diseases repairing of National highway 214 and the higuway frome Gonghe to Yushu and the test engineering of qinghai-tibet railway,Through comparison of block stone heat preservation revetment embankment and common one,the paper presents characteristic of cooling effect on block stone lays for permafrost under the roadbed when the block stone layer have been paved on the slope.