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本文以胶州市兰州东路翻修改造工程为背景,采取挖坑灌砂法检测,从现场得到试样的密度,室内采用控制恒温的烘箱烘干土样,计算得到试样的含水率和干密度,与室内击实试验得到的最大干密度进行比较测得公路路基底基层压实度,对得到的试验结果通过最小二乘法进行回归分析,说明了误差来源,且计算得到压实度代表值评定了压实度合格率。
In this paper, based on the renovation and reconstruction project of Lanzhou East Road in Jiaozhou City, the method of digging and filling sand was adopted to obtain the density of the sample from the site. The oven was used to control the oven temperature to dry the soil samples. The moisture content and dry density , Comparisons with the maximum dry density obtained by indoor compaction test were carried out to measure the compaction degree of the subgrade of highway subgrade. The test results obtained were analyzed by the least square method, the sources of error were explained, and the compaction representative value was calculated Compaction pass rate.