摘要
通过一系列不同埋深情况下的圆形基础承载力离心模型试验研究基础埋深对基础尺寸效应的影响。试验结果表明,基础尺寸效应的程度和影响范围均随基础埋深的增大而增大,即随着基础埋深的增加,承载力试验中的基础尺寸效应逐渐变得显著,由此推测,不仅承载力系数Nγ存在基础尺寸效应问题,承载力系数Nq同样存在随基础尺寸增大而减小的基础尺寸效应问题,且随着基础埋深的增加,Nq的基础尺寸效应增强。
The bearing capacity tests were conducted in a centrifuge to examine the influence of the footing embedment on the scale effect of the footings. Test results showed that the scale effect became more significant with the increasing of footing embedment. Not only the bearing capacity factor Nr decreased as the footing size increased, but also the bearing capacity factor Nq decreased as the footing size increased. Namely there also existed a scale effect for the bearing capacity Nq. Furthermore, Nq decreased more sharply as the footing embedment increased.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第9期117-122,共6页
Periodical of Ocean University of China
基金
国家自然科学基金项目(50779062)资助
