基于荷载传递法的后注浆自平衡试桩沉降特性研究

以长平高速公路K94+920.9通道桥改扩建工程为依托，以荷载传递法为基础，分别对自平衡试验中后注浆桩和未注浆桩的沉降量进行计算及分析。结果表明:利用荷载传递法计算结果与现场试验值基本一致。因此，建议在以沉降控制为主的桩基设计时，可以根据基于荷载传递法预估桩的沉降量进行设计。

Study on Settlement Characteristics of Post-grouting Self-balanced Testing Pile Based on Load Transfer Method

In relation to the reconstruction engineering of the passage bridge K94+920.9 on Changle-Pingtan Highway, and based on load transfer method, the settlement of post-grouting and non-grouting piles in the self balance test, was calculated and analyzed, respectively. The result shows that the value calculated by load transfer method is consistent with the test value in the field. Hence it is advised that, during the design of pile foundation, which pays attention to settlement control, the pile settlement may be predicted by load transfer method, and the work goes on according to this predicted value.