A New Hyperbolic p-y Curve Model for Laterally Loaded Piles in Soft Clay
A New Hyperbolic p-y Curve Model for Laterally Loaded Piles in Soft Clay
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DOI：
10.1061/40865(197)19
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发表时间：
2006-05
期刊：
影响因子：
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通讯作者：
D. Dewaikar;P. Patil
中科院分区：
文献类型：
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作者：
D. Dewaikar;P. Patil
桩基用于导管架型海洋结构物，其承受由海浪和风引起的大幅度横向载荷。用非线性p-y曲线来表示桩侧土静阻力是分析水平荷载桩反应的常用方法。本文提出了一种简单而改进的软粘土静载双曲线的构造方法。Py曲线的初始刚度被认为是随着深度而增加的，这完全取决于土壤的性质。一个长的，灵活的，不受约束的直桩在软粘土中进行了分析，其中采用了迭代分析与割线模量的方法，使用的力矩面积法开发的Sawant等。（1996年）。使用马特洛克（1970）、Georgiadis等人（1980）和J.（1992）和提出的双曲py曲线。并将计算结果与马特洛克（1970）报道的现场试验数据进行了比较。
Pile foundations are used for jacket type offshore structures, which are subjected to large magnitudes of lateral loads due to ocean waves and winds. Use of non-linear p-y curves to represent the static soil resistance is the common approach for analyzing the response of laterally loaded piles. In this paper, a simple and improved method for the construction of hyperbolic py curves for a soft clay is proposed for static loading conditions. The initial stiffness of the py curve is taken to be increasing with depth which depends entirely on the soil properties. A long, flexible, unrestrained vertical pile in a soft clay is analysed in which an iterative analysis is employed with the secant modulus approach, using the moment area method developed by Sawant et al.(1996). The analysis is performed using the py curves developed by Matlock (1970), Georgiadis et al.(1992) and the proposed hyperbolic py curves. The results are compared with the field test data reported by Matlock (1970).