同济大学学报（自然科学版）2017，Vol.45Issue(12)：1783-1790,8.DOI:10.11908/j.issn.0253-374x.2017.12.007
桩筏基础固结沉降实用计算方法
Practical Method for Piled Raft Consolidation Settlement Calculation
摘要
Abstract
A practical method for calculating the consolidation settlement of frictional piled raft foundation in deep clay was presented.Nonlinear model considering pile-soil-raft interaction and alternating direction implicit finite difference algorithm were adopted to solve excess pore water pressures at different positions in two-dimensional plain strain domain,average consolidation degree of soil below pile tip and consolidation settlement of piled raft in any time.The results from comparison with the accurate solution of finite element method show that the proposed model and the simplified assumptions are basically reasonable.Finally the method was successfully applied to the consolidation settlement prediction of two pile raft cases in saturated clay.关键词
桩筏基础/固结/沉降计算/非线性/隐式差分算法Key words
piled raft/consolidation/settlement calculation/nonlinearity/implicit finite difference algorithm分类
建筑与水利引用本文复制引用
杨军,杨敏..桩筏基础固结沉降实用计算方法[J].同济大学学报（自然科学版）,2017,45(12):1783-1790,8.基金项目
国家自然科学基金(41372274) （41372274）
