岩土工程学报2026，Vol.48Issue(z2)：79-83,5.DOI:10.11779/CJGE2026S20028
砂土中桶形基础竖向动力响应试验研究
Experimental study on the vertical dynamic response of bucket foundations in sand
木林隆 1徐硕 1周涛1
作者信息
- 1. 同济大学地下建筑与工程系,上海 200092||同济大学土木工程防灾减灾全国重点实验室,上海 200092
- 折叠
摘要
Abstract
This study conducts vertical steady-state harmonic excitation model tests of suction bucket foundations in dry and saturated sand under different excitation force amplitudes and aspect ratios.The amplitude-frequency characteristics of bucket-top displacement are analyzed to elucidate the vertical vibration behavior of a single bucket foundation embedded in sand.The results indicate that the overall shapes of the frequency-response curves of the bucket-soil system remain consistent across test conditions,with significant amplification occurring near resonance.With increasing excitation amplitude,the bucket-top response increases,whereas the resonance frequency remains essentially unchanged.An increase in the length-to-diameter ratio markedly reduces the bucket-top displacement response,and its influence on resonance characteristics is mainly manifested in low-order modes.Compared with the dry-sand condition,the saturated-sand condition exhibits lower resonance peaks and flatter peak shapes.The findings provide a basis for evaluating the vertical dynamic performance of bucket foundations in saturated seabed soils.关键词
桶形基础/竖向稳态激振/长径比/孔隙水/自振频率Key words
bucket foundation/vertical steady-state excitation/aspect ratio/pore water/natural frequency分类
建筑与水利引用本文复制引用
木林隆,徐硕,周涛..砂土中桶形基础竖向动力响应试验研究[J].岩土工程学报,2026,48(z2):79-83,5.
