岩土力学2017，Vol.38Issue(8)：2434-2440,2447,8.DOI:10.16285/j.rsm.2017.08.033
大口径钢管斜桩竖向承载特性数值模拟与现场试验研究
Numerical simulation and field test study on vertical bearing behavior of large diameter steel of inclined piles
摘要
Abstract
Currently,there are few studies on inclined pile field test.Four piles at the position of 40 # and 41 # fans (two vertical piles,two inclined pile) were tested for their vertical bearing capacity in Donghai Bridge Wind Farm Phase Ⅱ project.Prior to testing,the ABAQUS was used for preliminary analysis on vertical piles and inclined piles under reasonable conditions and selected soil parameters.it found that the calculated results and post-test results are close,and after comparing calculated results and the results of test piles,it showed:1) at the project site conditions,finite element analysis and experimental results showed that the vertical ultimate bearing capacity of inclined pile was less than vertical ultimate bearing capacity of vertical pile.2) when the inclined pile was under axial load,the settlement and the settlement value range on the anticline side of the soil were significantly greater than that on the oblique side;3) the finite element analysis and the parameter value were more reasonable,which could provide reference for similar project preliminary analysis;4) ultimate bearing capacity of the two vertical piles was less than design value:ultimate bearing capacity of the two inclined piles was greater than the design value;the proportion of pile side resistance of the two inclined piles was higher than that of two vertical piles;the proportion of pile side resistance was lower than two vertical piles.关键词
大口径钢管桩/倾斜桩/有限元分析/现场试验/竖向承载特性Key words
large diameter steel pile/inclined piles/finite element analysis/field test/vertical bearing behavior分类
建筑与水利引用本文复制引用
徐江,龚维明,张琦,戴国亮,霍少磊,杨超..大口径钢管斜桩竖向承载特性数值模拟与现场试验研究[J].岩土力学,2017,38(8):2434-2440,2447,8.基金项目
江苏省普通高校学术学位研究生科研创新计划(No.KYLX16-0238) （No.KYLX16-0238）
国家自然科学基金项目(N0.51478109) （N0.51478109）
国家重点基础研究发展计划(No.2013CB036304).This work was supported by the Research Innovation Program for College Graduates of Jiangsu Province (KYLX16-0238),the National Natural Science Foundation of China (51478109) and the National Basic Research Program of China(2013CB036304). （No.2013CB036304）
