Fundamental Study on lateral Behavior of Piles in Slope during an Earthquake.

本研究的目的是探讨在侧向荷载作用下边坡中桩的破坏行为。基于理论和实验手段的研究结果可以总结如下：1。给定桩土体系的侧阻力一般随着坡面正角的增大而增大，且正角为荷载方向的逆时针方向。正角处的极限侧向阻力大于负角处的极限侧向阻力，正角处的极限侧向位移小于负2角处的极限侧向位移。2 .组内前排桩比后排桩承受更大的侧荷载，其差值之比随坡角的增大而增大。群效率有随位移增大最终趋近于常数的趋势，且在正角处的值大于负角处的值。虽然我们所开发的分析预测与小载荷下的试验结果一致，但与大载荷下的试验结果有些出入。

The purpose of this study is to investigate the behavior of piles in slope up to failure under lateral load. The research results on the basis of both theoretical and experimental means can be summarized as follows.1.The lateral resistance of the given pile-soil system generally increases with increasing the plus angle of the slope on condition that the plus means the counterclockwise to the loading direction. The ultimate lateral resistance at the plus angle is greater than that at the minus, while the ultimate lateral displacement at the plus is less than that at the minus.2.The piles in the front row of the group carry greater lateral load than those in the back row, and the ratio of the difference increases with increasing the slope angle.3.The group efficiency is in a tendency that its value finally converges to the constant, increasing with the displacement, and also that its value at the plus angle is greater than that at the minus.4.Although the predictions by the analysis which has been developed by us agree to the test results under small loads, they somewhat diverge from the test results under larger loads.