Failure mechanisms of embankment on inclined soft foundation reinforced by pipe piles
GU Xing-wen1, 2, HUANG Wei-wang3, TAN Xiang-shao3, REN Guo-feng1, 2
1. Nanjing Hydraulic Research Institute, Nanjing 210029, China; 2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China; 3. CRCC Harbour & Channel Engineering Bureau Group Survey & Design Institute Co., Ltd., Guangzhou 510000, China;
Abstract：Four groups of centrifuge model tests are performed to investigate the failure mechanisms of embankment on inclined soft foundation reinforced by pipe piles. The influences of embedded depth of pile toe into stiff stratum and lattice beams are analyzed with comparison to the natural inclined soft ground situation. The results show that the failure mechanisms are as follows: (1) For the deep embedded situation, soil may flow around piles, leading to leaning of piles at the downhill side and overall failure; (2) For the shallow embedded situation, soil also flows around the piles, leading to more leaning of piles and overall failure; (3) The lattice beams are efficient in preventing piles from leaning, but soil still flows around piles.
顾行文,黄炜旺,谭祥韶,任国峰. 基底倾斜的管桩复合地基路堤破坏模式研究[J]. 岩土工程学报, 2017, 39(s1): 204-208.
GU Xing-wen, HUANG Wei-wang, TAN Xiang-shao, REN Guo-feng. Failure mechanisms of embankment on inclined soft foundation reinforced by pipe piles. Chinese J. Geot. Eng., 2017, 39(s1): 204-208.
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