南华大学学报（自然科学版）2009，Vol.23Issue(2)：101-106,6.
超长桩承载性状分析的无网格局部彼得罗夫-伽辽金法
Meshfree Local Petrove-Galerkin Method for Studying Bearing Behavior of Super Long Pile
摘要
Abstract
Based on weighted residual method,the construction or selection of test function and weight function of Meshfree Local Petrov-Galerkin (MLPG) were introduced.Then,the dealing method of displacement boundary conditions,simulation method of elastic-plastic behavior of reinforcement and surrounding soil,dealing method of non-continuous on the interface and how the relevant program process brough about were deeply discussed,and the codes were also programed.The accracy of the local Petrove-Galerkin method was verified by comparing the calculating result to the classical solution in mechanics.Lastly,the bearing behavior of super-long pile was analyzed by the codes,and the relationship between pile length-diameter ratio and pile top settlement,nonlinear behavior of load-settlment curve was got.And the results also showed that,there is a effective pile length,which is related to the soil stiffness,when a pile longer than it,the bearing capacity of pile can not be enhanced by enlarging the pile length.关键词
桩基工程/超长桩/无网格法/荷载-沉降曲线Key words
pile foundation/super-long pile/meshfree mthod/load-settlement curve分类
建筑与水利引用本文复制引用
贺炜,陈永贵,梁斌..超长桩承载性状分析的无网格局部彼得罗夫-伽辽金法[J].南华大学学报（自然科学版）,2009,23(2):101-106,6.基金项目
国家自然科学基金资助项目(40802064) （40802064）
长沙理工大学人才引进基金资助项目(1004178) （1004178）
