共和至玉树(结古)公路多年冻土路基病害及其防治研究

Prevention research of roadbed disease in permafrost region of Gonghe to Yushu( Jiegu) Highway

本文以共和至玉树(结古)公路为例,以冻土区路基病害现场调查为依据,重点分析了路基病害与冻土类型、路基处理类型、路基高度、路基平整度之间的关系,揭示了共和至玉树(结古)公路路基病害随着冻土性质的变差而严重,片块石通风路基段出现病害的原因,路基高度过高或过低都将影响路基病害的产生,路基病害越严重,路基平整度(RQI)指数离散性越大,最后提出了冻土区路基病害处理的关键技术.

This articla relies on the Gonghe te Yushu( Jieyu ) Highway, Based on field investigation of roadbed diseases in frozen soil aree, The analysis focuses on the relationship between roadbed diseses and type of frozen soils, Subgrade procesfina type, Subgrade heighi, Subgrade flatnyf ( RQI), It reveals that the subgrade disese of Gonghe to Yuehu (Jiegu) Highway is serious with the detevoration of the nature of frozen soil;The cause of the disease in the base section of the block stone ventilation road;If the subgrade height is too high oo too low, it wili affect the roadbed dissse. The more serious she roadbed dissse, the greatev ahe dispersion of the roadbed flyness (RQI) index, Findliy, the key technoloay of roadbed disease todlmient in frozen soil area is proposed. Findliy, the key technoloay of roadbed dissse treatwent in frozen soil ares is proposed.