ZHANG Zhongmiao, XIN Gongfeng, WU Qingyong, WANG Nianxiang, ZENG Youjin. Centrifuge model tests on super-long piles with large diameters considering mudcake effect[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(12): 2066-2071.
Citation:
ZHANG Zhongmiao, XIN Gongfeng, WU Qingyong, WANG Nianxiang, ZENG Youjin. Centrifuge model tests on super-long piles with large diameters considering mudcake effect[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(12): 2066-2071.
ZHANG Zhongmiao, XIN Gongfeng, WU Qingyong, WANG Nianxiang, ZENG Youjin. Centrifuge model tests on super-long piles with large diameters considering mudcake effect[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(12): 2066-2071.
Citation:
ZHANG Zhongmiao, XIN Gongfeng, WU Qingyong, WANG Nianxiang, ZENG Youjin. Centrifuge model tests on super-long piles with large diameters considering mudcake effect[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(12): 2066-2071.
1.Institute of Geotechnical Engineering Zhejiang University Hangzhou 310027 China 2.Shandong Transportation Instistute Jinan 250031 China 3.Nanjing Hydraulic Research Institute Nanjing 210024 China
Based on the centrifuge model tests,the bearing and deformation characteristics of super-long piles with large diameters considering mudcake effect were studied.It was shown that the ultimate shaft resistance of piles considering mudcake was about 65%~85% of that without mudcake and the ultimate bearing capacity decreased about 20%.The effect of pile diameters,pile lengths and bearing stratum on ultimate bearing capacity and shaft resistance was studied.The shaft resistance degraded under heavy load.The shaft resistance of super-long piles degraded little with the increasing diameters in mucky clay.The shaft resistance decreased with the increasing embedded depth in a soil layer at a given depth and could be expressed as the function of h/R.