Mechanism model test of interaction between bucket foundation and soil subjected to torsional resistance
1.Geotechnical and Structural Engineering Research Institute, Shandong University, Jinan, Shandong 250061, China; 2.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China; 3.Civil and Construction College, Shandong University of Science and Technology, Qingdao, Shandong 266510, China; 4.School of Civil Engineering, Ludong University, Yantai, Shandong 264025, China; 5.School of Civil and Architecture Engineering, Northeast Dianli University, Jilin, Jilin 132012, China
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 around the foundation.
武科1,2, 马明月3, 范庆来4, 陈榕5, 郝冬雪5. 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.
WU Ke, MA Ming-Yue, FAN Qing-Lai, CHEN Rong, HAO Dong-Xue. Mechanism model test of interaction between bucket foundation and soil subjected to torsional resistance[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2013, 34(1): 86-90.
2013, Vol. 34 
