Dragload and Downdrag Performances of Inclined Pile Group Embedded in Consolidating Soil

• Published in: Transactions of Tianjin University Vol. 17; no. 3; pp. 175 - 180
• Main Author: 孔纲强 杨庆
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University 01.06.2011; Key Laboratory for Geomechanics and Embankment Engineering of Ministry of Education,Geotechnical Research Institute, Hohai University, Nanjing 210098, China%State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
• Subjects: Engineering; Humanities and Social Sciences; Mechanical Engineering; multidisciplinary; Science; 三维数值模型; 倾斜角度; 土壤; 实验比较; 嵌入式; 桩间距; 群桩; 表演; negative skin friction; downdrag; pile group; dragload; consolidating soil; neutral plane
• ISSN: 1006-4982; 1995-8196
• DOI: 10.1007/s12209-011-1580-x

The performance of inclined pile group embedded in consolidating soil under surcharge load was investigated by experiment in comparison with vertical pile group and single pile under the same conditions; dragload, down- drag, and layered soil settlement were measured. A three-dimensional numerical model was built via FLAC3D soft- ware, and verified by the experimental results. Influence factors, such as consolidation time, pile spacing, and pile tilt angle were analyzed. The results show that dragload of inclined pile group increases with the increase of consolidation time and pile spacing or the decrease of pile tilt angle. Downdrag of inclined pile group increases with the increase of consolidation time, pile spacing and pile tilt angle.