Failure mechanisms of embankment on inclined soft foundation reinforced by CFG Piles
GU Xing-wen1, 2, TAN Xiang-shao3, HUANG Wei-wang3, 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 centrifugal model tests are performed to investigate the failure mechanisms of embankment on inclined soft foundation reinforced by CFG piles. The tests simulate four kinds of grounds: natural inclined soft ground, normal CFG composite ground, inclined CFG composite ground, and inclined defect CFG composite ground. The results show that the failure mechanisms are as follows: (1) CFG piles are prone to fracture into many rigid short piles moving with soil failure; (2) For the inclined ground, fractures of CFG piles occur more greatly along the downhill direction, and the deformation is larger; (3) For the defect CFG pile composite ground, the deformation is significantly larger.
顾行文,谭祥韶,黄炜旺,任国峰. 倾斜软土CFG桩复合地基上的路堤破坏模式研究[J]. 岩土工程学报, 2017, 39(s1): 111-115.
GU Xing-wen, TAN Xiang-shao, HUANG Wei-wang, REN Guo-feng. Failure mechanisms of embankment on inclined soft foundation reinforced by CFG Piles. Chinese J. Geot. Eng., 2017, 39(s1): 111-115.
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