Effect of Scour on the Behavior of Laterally Loaded Single Piles in Marine Clay

Li, Fen; Han, Jie; Lin, Cheng

doi:10.1080/1064119x.2012.676157

Cited by 72 publications

(18 citation statements)

References 17 publications

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“…The shallow surface layers are of great interest for this study because laterally loaded piles typically receive most of their support from the soil in the upper 7-10 times pile diameters (Briaud, 1997). Therefore, Young's modulus E s and Poisson's ratio ν of the upper marine clay (Li et al, 2013;Kim et al, 2009) are used in this analysis. The lateral load was applied at a point 0.5 m above the ground surface and increased substantially up to a maximum load of 900 kN.…”

Section: Validation Of the Analytical Modelmentioning

confidence: 99%

Variational solution for the effect of vertical load on the lateral response of offshore piles

2015

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Section: Validation Of the Analytical Modelmentioning

confidence: 99%

Variational solution for the effect of vertical load on the lateral response of offshore piles

2015

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“…The soft ground at the test site was deposited under a marine environment and has a very high compressibility and low bearing capacity (Zhu 2003;Li et al 2013 …”

Section: Geotechnical Profile and Soil Propertiesmentioning

confidence: 99%

Evaluation of the Strength Increase of Marine Clay under Staged Embankment Loading: A Case Study

Shen

et al. 2014

Marine Georesources & Geotechnology

102

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This article presents a case history of the performance of a full-scale test embankment constructed on a marine soft clay deposit improved by prefabricated vertical drains (PVDs) in the east of China. For analyzing the subsoil behavior, a 2D FEM model is established, in which the PVD-improved effect is considered by a simplified method of equivalent vertical hydraulic conductivity. The calculated results can predict the settlement behavior well, however, the FEM gives an underestimate for the value of excess pore pressures and it predicts similar values for the dissipation rate of excess pore pressures. The measured undrained shear strength of subsoil, u C , is compared with the predicted value based on Ladd's empirical equation and the Modified Cam-Clay model (MCC). The shear strength predicted by Ladd's equation agrees well with the measured value, whereas the MCC overestimates the ability to improve subsoil shear strength during consolidation. The undrained shear strength of subsoil, u C , increased as the Downloaded by [University of Western Ontario] at 07:23 07 October 2014 2 construction progressed, and the shear strength incremental ratio, ' u Cp , decreased slightly with the degree of consolidation, U.

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“…According to Askarinejad et al (2017) the effective zone of influence around a lateral loaded pile is within one pile diameter, thus it was considered that outside the 1D region from the pile outer surface the small change of the scour shape will have negligible influence on the pile load behaviour. Li et al (2013) indicated that when the scour hole bottom width is larger than 1D, the influence of the slope angle on the pile lateral displacement is negligible. The scour hole side slope angle was assumed to be 45˚ in the physical situation, therefore the modelling of the scour slope was simplified by adding an additional length of scour hole base of 0.5ds in the analysis and maintaining the side slope angle at 90˚.…”

Section: Introductionmentioning

confidence: 99%

“…Effect of scour of stiff clayey soils on piles is more pronounced than that of soft clayey soils. Based on the FLAC 3D, Li et al (2013) calibrated the numerical model of a single pile in soft marine clay against field test data without scour and analyzed several key factors of scour, such as the depth, width and slope of the scour hole and the diameter and head fixity of the pile. The relationships of the ultimate lateral capacity of a single pile with depth, width and slope angle of the scour hole were obtained.…”

Section: Introductionmentioning

confidence: 99%