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利用数值模拟方法对斜向受荷桩的承载特性进行了分析计算,主要研究加载角度对桩基承载特性影响。结果表明:(1)随着加载角度的增大,桩身水平位移显著增大;桩的承载方式由竖向承载为主逐渐向水平承载为主转化;(2)随着加载角度的增大,桩身最大弯矩逐渐增大,发生位置逐渐向深部移动;桩身弯矩的变化主要受荷载水平分量的影响。(3)斜向荷载下,随着加载角度θ的增大,桩侧土反力0点位置向深部移动;桩前最大土反力p1max和桩后最大土反力p2max与sinθ有很好的线性递增关系;(4)随着加载角度的增大,桩端阻力减小。
The load-bearing characteristics of inclined-loaded piles are analyzed and calculated by numerical simulation. The influence of loading angle on the bearing characteristics of pile-foundation is mainly studied. The results show that: (1) As the loading angle increases, the horizontal displacement of the pile increases significantly. The bearing capacity of the pile changes from vertical load to horizontal load. (2) With the increase of load angle , The maximum bending moment of the pile gradually increases and the position gradually moves to the deep; the change of pile bending moment is mainly affected by the load level component. (3) Under the oblique load, with the increase of the loading angle θ, the soil reaction force at 0 o’clock position moves to the deep; the maximum soil reaction force p1max before the pile and the maximum soil reaction force p2max and sinθ after the pile have very good Linearly increasing relationship; (4) With the increase of loading angle, the resistance of pile tip decreases.