Load imposed by laterally spreading soil increases the vulnerability of pile foundations to seismic damage. A probabilistic investigation has been carried out for evaluation of behavior of single piles, with different batter angles (0°, ± 10°, ± 20°) and slenderness ratios (15, 20, 25), subjected to laterally spreading ground displacements through Beam on Nonlinear Winkler Foundation approach. Effect of shapes of p–y curves of liquefiable soil layer on the response of piles has been evaluated. It is inferred that the conventional concave p–y curves underestimate the pile response compared to the convex p–y curves. Prediction models for maximum bending moment and pile head displacement are proposed for piles with different batter angles. Probability of failure of piles under different performance criteria are then evaluated using Monte–Carlo simulation technique. Finally, probabilistic risk factors are evaluated to assess the risk imposed by various random parameters on the overall response of piles.

横向传播的土壤所施加的载荷增加了桩基对地震破坏的脆弱性。已经进行了概率研究，以评估不同击球角（0°，±10°，±20°）和细长比（15、20、25）的单桩的性能，这些桩通过梁横向位移关于非线性Winkler基础方法。的形状的效果p - ý液化土层上桩的响应的曲线已被评估。据推断，传统的凹p - Ÿ相比凸曲线低估桩响应p - ÿ曲线。针对不同面角的桩，提出了最大弯矩和桩头位移的预测模型。然后使用蒙特-卡洛模拟技术评估在不同性能标准下桩的破坏概率。最后，评估概率风险因素，以评估各种随机参数对桩的整体响应造成的风险。