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

作     者：孔纲强 杨庆 KONG Gangqiang 1,YANG Qing2 (1. Key Laboratory for Geomechanics and Embankment Engineering of Ministry of Education, Geotechnical Research Institute, Hohai University, Nanjing 210098, China;2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China)

作者机构：Key Laboratory for Geomechanics and Embankment Engineering of Ministry of Education Geotechnical Research Institute Hohai University State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2011年第17卷第3期

页      面：175-180页

核心收录：

学科分类：081401[工学-岩土工程] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0814[工学-土木工程] 090301[农学-土壤学] 

基　　金：Supported by National Natural Science Foundation of China (No. 51008116) State Key Laboratory of Coastal and Offshore Engineering (No. LP1014) Fundamental Research Funds for the Central Universities (No. 2009B14514) China Postdoctoral Science Foundation (No. 20090461062) 

主　　题：pile group negative skin friction consolidating soil downdrag dragload neutral plane 

摘      要：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, downdrag, and layered soil settlement were measured. A three-dimensional numerical model was built via FLAC3D software, 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.