Pile Friction Freeze Effects - A Lab Prediction Study & Field Demo

“冻结”是桩/土相互作用的位移， 并且经常导致桩容量的显著增加。 这种能力的提高，在很大程度上是由于 侧摩擦增加，这是执业工程师公知的， 但人们对此知之甚少，因此未得到充分利用。 拟议 研究将研究孔隙压力和老化现象 利用时间加速， 离心模型的优点 模型原位试验 离心机和现场全尺寸试验将用于评估 它们作为桩冻结预测测试的潜力。

"Freeze" is a displacement pile/soil interaction that happens over time and often results in a major increase in pile capacity. This improvement in capacity, which for the most part is due to side friction increase, is well known to practicing engineers, but poorly understood and therefore underutilized. The proposed research will study the pore pressure and aging phenomena involved with side friction freeze using the time-accelerating advantages of centrifuge modeling. Model insitu testing in the centrifuge and full scale tests insitu will be used to evaluate their potential as predictor tests for pile freeze.