东北多年冻土区公路路基工程研究进展

摘要

在气候变暖和人类工程活动共同作用下,东北多年冻土退化显著,进而影响到修建于多年冻土之上公路路基的稳定性.回顾了东北多年冻土区公路路基工程研究的现状和进展,对路基设计原则存在的问题及近期需要开展的冻土相关研究工作进行了讨论并提出建议.%On the effects of climate warming and human engineering activities, permafrost had degraded significantly in the Northeast China, which results in instability of highway subgrade on it. The paper reviews the current situation and advances of highway subgrade engineering in permafrost regions of northeast China. Then the problems for design principle of subgrade and the present relative research about permafrost engineering are discussed and recommedations are proposed.