针对桩基水平承载力计算的2种方法——m法和p-y曲线法，运用2个工程实例计算结果，进行了2种桩基水平承载力的计算方法对比分析。结合舟山与大陆联网大跨越工程，分析了各种因素对桩基水平承载力及变形的影响；为了优化承台厚度，计算时考虑了承台与群桩的共同作用。

Both m method and p-y method are used to study the lateral bearing capacity of pile foundations. The comparisons between two methods are performed combined with the engineering practice. Based on Zhoushan-Mainland large-crossing project, the effects on lateral bearing capacity and distortation of pile foundations are analyzed. To optimize the thickness of pile cap, pile cap and pile group interaction is considered.