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针对贵州毕生高速公路建设中遇到的高液限土,对毕生高速沿线的高液限土路用性能进行试验研究。分析了含水率、击实功与干密度、压实度的关系,泡水前后密实度变化,含水率与CBR关系以及压实度与CBR的关系。然后,对典型填筑工艺条件下路基的碾压试验结果进行了分析,并且通过沉降观测分析了施工过程对沉降时变规律的影响。
Aiming at the high liquid limit soil encountered in the construction of Guizhou Lifelong Expressway, experimental study on the performance of high liquid limit soil roadway along the lifelong high speed road is carried out. The relationship between moisture content, compaction strength, dry density and compaction degree, the change of compactness before and after soaking water, the relationship between water cut and CBR, and the compaction degree and CBR were analyzed. Then, the roller compaction test results of roadbed under typical filling conditions are analyzed, and the influence of construction process on settlement time-variation law is analyzed by settlement observation.