This paper is based on a shaking table test of 2 × 2 straight pile groups and 2 × 2 inclined pile groups in non-liquefied sand and saturated sand with different thicknesses. Under the sine wave with a certain peak acceleration and frequency, the lateral dynamic response characteristics, the distribution law of the maximum bending moment envelope diagram, and the p–y curve of the straight and inclined pile groups are studied. The results show that the bending moment of the straight pile group is 3~4 times that of the inclined pile group at the bottom section of the pile in the 300 mm saturated sand. When the thickness of the saturated sand increases to 380 mm, the maximum bending moment of the straight pile group is 6~7 times that of the inclined pile group at the bottom section of the pile. Through the comparison of indicators, it shows that the inclined pile group can have better bending resistance when subjected to the same lateral dynamic load.

中文翻译：

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饱和砂岩直斜桩群动力响应特性及p-y曲线研究

本文基于 2×2 直桩组和 2×2 斜桩组在不同厚度的非液化砂和饱和砂中的振动台试验。研究了在一定峰值加速度和频率的正弦波下，横向动力响应特性、最大弯矩包络图分布规律以及直、斜桩组的p-y曲线。结果表明，在300 mm饱和砂土中，直桩组的弯矩是斜桩组的3~4倍。当饱和砂层厚度增加到380 mm时，直桩组的最大弯矩是桩底斜桩组的6~7倍。通过指标对比，