郑州大学学报（工学版）2019，Vol.40Issue(6)：84-89,6.DOI:10.13705/j.issn.1671-6833.2019.03.003
基于Hansbo渗流的未打穿砂井地基固结分析
Consolidation Analysis of Partially Penetrated Sand-drained Foundation Based on Hansbo's Flow
摘要
Abstract
In the paper, the investigation focused on the consolidation of partially penetrated sand-drained foundation. The governing equations for the consolidation of soft ground with partially penetrated sand drains were put forward by introducing Hansbo's flow model. And the effect of the depth of sand drains, the parame-ters of Hansbo's flow model, and the smear zone on consolidation behaviors was analyzed in detail. The results showed that the depth of sand drains could affect the average consolidation degree of sand-drained foundation significantly; and the required consolidation time corresponding to Up=90% was about ten times more than that of ideal sand-drained foundation, when the depth of sand drains was 60% of the total depth of the founda-tion. The consolidation rate decreased with the increasing of the parameters m and I1 of Hansbo's flow, and it also decreased with the increasing of the scope of smear zone and the decreasing of the permeability coefficient of smear zone.关键词
Hansbo渗流/未打穿砂井地基/涂抹区/固结特性/FlexPDEKey words
Hansbo's flow/partially penetrated sand-drained foundation/smear zone/consolidation charac-teristics/FlexPDE分类
建筑与水利引用本文复制引用
时刚,康一,刘忠玉..基于Hansbo渗流的未打穿砂井地基固结分析[J].郑州大学学报（工学版）,2019,40(6):84-89,6.基金项目
国家自然科学基金项目(51578511) （51578511）
