江苏大学学报（自然科学版）2013，Vol.34Issue(1)：86-90,5.DOI:10.3969/j.issn.1671-7775.2013.01.017
扭剪荷载作用下桶形基础与土相互作用机理模型试验
Mechanism model test of interaction between bucket foundation and soil subjected to torsional resistance
摘要
Abstract
Based on the model test, the failure mechanism of bucket foundation subjected to torsional resistance was investigated with different draw radio. The results show that the curves from model test are in good consistency with numerical calculations. The rotation angle of bucket foundation is increased by the increasing of torsional loading with almost linear relationship. At initial stage, the remarkable torsional loading variety leads to slight increase of rotation angle. When the imposed loading reaches a stable value, slight enhancement of torsional loading can result in marked variety of rotation angle with almost linear relationship. The inside and outside earth pressures of bucket foundation are axial symmetry. The inside earth pressure of foundation is increased from top to bottom with almost identical outside earth pressure. The annulus shear failure at the bottom of foundation is generated by torsional loading. The rotated shear deformation around the bucket foundation is generated with foundation axis as centre, and propagates a-round the foundation.关键词
桶形基础/模型试验/扭剪荷载/土压力/有限元Key words
bucket foundation/model test/torsional resistance/earth pressure/finite element分类
建筑与水利引用本文复制引用
武科,马明月,范庆来,陈榕,郝冬雪..扭剪荷载作用下桶形基础与土相互作用机理模型试验[J].江苏大学学报（自然科学版）,2013,34(1):86-90,5.基金项目
国家自然科学基金资助项目(50909048) （50909048）
中国矿业大学深部岩土力学与地下工程国家重点实验室开放基金资助项目(SKLG-DUEK0910) （SKLG-DUEK0910）
山东省自然科学基金资助项目(ZR2011DQ008) （ZR2011DQ008）
山东省自然科学基金资助项目(ZR2010EQ036) （ZR2010EQ036）
