多年冻土地区道路病害及对策探讨

Diseases of Road in Perennially Frozen Soil Area and Countermeasure Discussion

对青藏高原多年冻土区进行研究,分析路基路面、桥梁涵洞病害原因。研究了水、热的变化规律对多年冻土的稳定性影响,其中冻胀、融沉等对道路产生的病害应得到重视,总结现已成功的常用冻土防护措施,分析道路工程相关冻害处置技术,提出多年冻土地区亟待研究的相关技术,为我国后期在多年冻土地区道路建设提供一定的参考。

The research on perennially frozen soil area of Qinghai-Tibet Plateau is made,and reasons for diseases like subgrade pavement,bridge culvert are analyzed. The research on influence of change rule of water and heat on the stability of perennially frozen soil is made,of which diseases of road like frost heave,thaw collapse and so on shall be paid attention to. The successful protective measures for common frozen soil are summarized,relevant disposal technologies of freeze injury for road engineering are analyzed,and relevant technologies that are urgent to be studied in perennially frozen soil area are put forward,so as to provide certain reference for the road construction of perennially frozen soil area in our country at later period.