工程地质学报2016，Vol.24Issue(6)：1222-1229,8.DOI:10.13544/j.cnki.jeg.2016.06.023
基坑悬臂支护桩的双参数有限差分算法研究
FINITE DIFFERENCE METHOD OF BI-PARAMETER ELASTIC FOUNDA-TION FOR CALCULATIONS OF CANTILEVER RETAINING PILES
摘要
Abstract
On the basis of the single parameter method recommended by the specification of foundation excavations,the finite difference method of bi-parameter elastic foundation for cantilever retaining piles in excavations was proposed.The cantilever retaining pile was regarded as a whole rather than be divided into two segments-cantilever segment and anchored segment as usual.Meanwhile,the soil reaction which exceeded the limit of passive earth pressure stress was corrected,so the accuracy and efficiency of the calculation was improved. Taking the practical project as an example,the subgrade resistances bi-parameters m and n were obtained through inverting the field data.And the result showed that the calculated value by the method and the measured data were in good agreement.Thus it could be proved that finite difference method has a good advantage under the same condition.At the same time,the effects of shear strength parameters and embedded depth on stress correction were discussed,and some conclusions which were beneficial to the projects were obtained.关键词
悬臂支护桩/双参数弹性地基梁法/有限差分法/应力修正Key words
Cantilever retaining pile/Bi-parameter elastic foundation beam method/Finite difference method/Stress correction分类
建筑与水利引用本文复制引用
陈林靖,王志刚,戴自航..基坑悬臂支护桩的双参数有限差分算法研究[J].工程地质学报,2016,24(6):1222-1229,8.基金项目
福建省教育厅科技项目（JA12042）资助． （）
