快速测定粘性土液、塑限指标的单点试验法

Single Point Experiment for Quickly Measuring Liquid and Plastic Limit Indexes of Clay Soil

液、塑限是反映粘性土物理性质的重要指标,测定该指标的试验过程较为复杂,且人为因素的影响较大。经过对珠海某工程试验数据的分析研究发现,实测锥体沉入深度和对应含水率之间存在相关关系,据此可以确定不同标准下的液限含水率和塑限含水率,从而提高土工试验的效率和数据质量。

Liquid and plastic limit indexes are major one that reflect the physical property of clay soil. The whole process to test the indexes is very complicated and affected greatly by man-induced factor. By analyzing and researching the experiment data of some project in Zhuhai, it is found that the correlativity exists between the measured cone sinking depth and the corresponding water content. The above correlativity can be used to determine liquid and plastic limit water content under different standards, and advance the efficiency and data quality of soil experiment.