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通过对膨胀土力学性质和工程性质的分析,指出了膨胀土地区公路遭受的主要病害形式,并对膨胀土按照传统的评判指标进行了详细的分类。简要介绍了膨胀土路基传统的防治措施,并在此基础上介绍了交通部西部建设项目中对于膨胀土新型分类指标体系与标准,以及将膨胀土直接作为路基填料的新型处治方法。
Through the analysis of mechanical properties and engineering properties of expansive soil, the main forms of road disease suffered in expansive soil areas are pointed out, and the expansive soil is classified according to the traditional evaluation indexes. The traditional control measures for expansive soil subgrade are briefly introduced. Based on the introduction, the new index system and standard for expansive soil in the construction project of the western part of the Ministry of Communications and the new treatment method using expansive soil as subgrade filler are introduced.