黄河中下游冲积平原深长桩极限桩长研究  

STUDY ON LIMIT LENGTH OF LONG PILES IN MIDDLE AND LOWER REACHES OF HUANGHE RIVER ALLUVIAL PLAIN

作　　者：董三升[1] 雷自学[1] 史文智[2] 

机构地区：[1]长安大学建筑工程学院,西安710064 [2]长安大学基建处,西安710064

出　　处：《建筑技术》2011年第3期262-266,共5页Architecture Technology

基　　金：河南省交通厅资助项目(2007P325)

摘　　要：基于黄河中下游冲积平原郑州公铁两用桥桩基传统静载试验,采用有限元软件ABAQUS对大量常用桩径不同桩长的深长桩进行非线性数值模拟,根据模拟结果给出该地区几种桩径的极限桩长取值。模拟结果与试验吻合较好,说明有限元的建模方法、参数设置及结论可靠。Based on the traditional static loading tests of piles for Zhengzhou Road-rail Bridge located in the middle and lower reaches of the Yellow River alluvial plain, finite element software ABAQUS was adopted to simulate the nonlinear performance of a large number of long piles with different lengths in the region. The limit lengths of piles with typical diameters in the region were obtained from the simulation. The simulated results are in good agreement with the test results, indicating the reliability of modeling method, selection of teehnieal parameters and conclusions.

关 键 词：深长桩 数值模拟 承载能力 桩径 极限桩长 

分 类 号：TU473[建筑科学—结构工程]