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归纳了有关学者在静压桩挤土效应模型试验方面所做的工作,对挤土效应室内模型试验的实验装置、土样的制备、测点布置等方面进行了分类阐述,总结了室内模型试验所得到的总体近似规律和单桩、群桩沉桩挤土效应的近似规律,揭示了挤土效应室内模型试验土体内部规律较难揭示、试验土样难以使用原状土、群桩相互作用下挤土效应机理研究有待深入,提出了考虑孔隙水压力进行数值验算、考虑“时间效应”对挤土效应进行研究等观点。
The paper summarizes the work done by the scholars on the model test of squeeze-soil effect of static pressure pile, classifies the experimental equipment for the soil model test, the preparation of soil samples and the arrangement of measuring points, and summarizes the indoor model test The general approximation rule obtained and the approximate rule of pile squeezing effect of single piles and group piles reveal that the internal rules of squeezed soil model are hard to reveal and the test soil samples are difficult to use. The study of squeezing-soil effect mechanism needs to be further studied. The viewpoint that pore water pressure should be calculated and the squeeze-soil effect should be considered considering the “time effect” is proposed.