论文部分内容阅读
我国西南地区分布着大量的高液限土,这些具有特殊性质的高液限土能否用于高速公路的填筑需要进行必要的技术论证。通过对现场取样的详细室内试验,对高液限土含水率、击实功与密实度、CBR强度、线膨胀率的关系进行分析,发现高液限土稠度在1.1~1.3之间时,采用适当的压实功,可以保证路基下路堤的最小强度和压实度的要求,作为路基填料能满足高速公路强度和长期稳定性的要求。
The distribution of a large number of high liquid limit soil in the southwest of our country, whether these high-liquid limit soil with special properties can be used for expressway filling, need to carry out the necessary technical demonstration. Through the detailed laboratory tests on the spot, the relationship between high liquid limit soil moisture content, compaction work and compaction, CBR strength and linear expansion rate was analyzed. It was found that when the consistency of high liquid limit soil is between 1.1 and 1.3, Proper compaction can guarantee the minimum strength and compaction requirement of embankment under roadbed. As a subgrade filler, it can meet the requirements of expressway strength and long-term stability.