用有限差分法计算变截面横向受载的桩身位移和内力  

Calculation of Displacement and Internal Forces of Piles by Means of Finite DifferenceMethod

作　　者：洪学福[1] 顾心怿[1] 韩益民[1] 高兴坤[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院

出　　处：《中国海洋平台》1997年第3期112-115,共4页China offshore Platform

摘　　要：利用有限差分法,推导出根据土的p-y计算变截面桩,在横向荷载的作用下,本身的位移和内力的计算公式,克服了以前利用有限差分法,只能对等截面桩进行计算的缺点。By means of finite difference method, an equation is derived to calculate the displacement and internal forces of piles with different cross sections under laterally loads. In compare with the pervious method, this equation is obviously superior than that of the previous ones which can on-ly calculate the displacement and internal forces of piles by asseming the cross sections of piles are unchanged. By using the equation mentioned in this paper, considerable amount of material can be saved in the design of piles.

关 键 词：桩身位移 有限差分法 海上油气田开发 安全技术 

分 类 号：TE58[石油与天然气工程—油气田开发工程]