A finite element–based approach for predictions of rigid pile group stiffness efficiency in clays

Sheil, Brian B.; McCabe, Bryan A.

doi:10.1007/s11440-013-0240-9

Cited by 28 publications

(10 citation statements)

References 20 publications

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“…Researchers and engineers more popularly use Plaxis as it is friendlier in soil modelling to solve simple problems in complex strata. Beyond that point, it can analyse all cases in geotechnical engineering including pile design [84], ground foundation [85], retaining wall [86], slope stability [87], and dam [88].…”

Section: Design and Analysis Methodsmentioning

confidence: 99%

A Review of Road Embankment Stability on Soft Ground: Problems and Future Perspective

Mamat

Kasa

Razali

2019

IIUMEJ

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This paper presents an exhaustive review of the challenges faced in the construction of road embankments on soft ground and proposes a direction for future development. Frequently used techniques for soft ground improvement are discussed. The factors that contribute to the stability of the road embankment are reviewed by approach, results of past studies, and historical cases. The findings show that settlement, slope stability, and soil bearing capacity are all challenges to constructing the road embankment. Additionally, it is found that geometric data is a key factor in embankment design. Pre-loading with prefabricated vertical drain (PVDs) methods and lightweight fill were found to be widely used techniques in soft ground improvement. The information from this study can be used to develop design guidance systems, numerical modelling, and to give an overview and knowledge to other researchers who are or will conduct research in this field. Finally, future perspectives for research are related to predictions of factors that affect the stability of road embankment with an artificial intelligence approach. ABSTRAK: Kertas ini membentangkan ulasan kajian menyeluruh mengenai cabaran yang dihadapi dalam pembinaan benteng jalanraya di atas tanah lembut dan mencadangkan ke arah pembangunan kajian masa depan. Teknik-teknik penambahbaikan tanah lembut yang sering digunakan turut dibincangkan. Faktor- faktor yang menyumbang kepada kestabilan benteng jalanraya diulas dengan pendekatan kepada kajian lepas dan sejarah kes. Hasil kajian ini didapati bahawa enapan, kestabilan cerun dan keupayaan galas tanah merupakan cabaran dalam pembinaan benteng jalanraya. Selain itu, ia didapati bahawa data geometri merupakan faktor penting kepada rekabentuk benteng. Kaedah pra pembebanan dengan prefabrikasi saliran menegak (PVDs) dan isian ringan didapati teknik yang popular digunakan dalam pembaikkan tanah lembut masa kini. Maklumat dari kajian ini boleh digunakan untuk membangunkan sistem panduan reka bentuk, pemodelan berangka serta memberi gambaran dan ilmu kepada penyelidik lain yang sedang atau akan menjalankan kajian dalam bidang ini. Akhir sekali, perspektif masa depan untuk penyelidikan berkaitan ramalan faktor-faktor yang mempengaruhi kestabilan embankment jalanraya dengan pendekatan kepintaran buatan.

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Section: Design and Analysis Methodsmentioning

confidence: 99%

A Review of Road Embankment Stability on Soft Ground: Problems and Future Perspective

Mamat

Kasa

Razali

2019

IIUMEJ

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“…Additional information on the formulation of this constitutive model is available elsewhere (Herle and Gudehus 1999;Niemunis and Herle 1997;von Wolffersdorff 1996). Schanz et al (1999), Sheil and McCabe (2014).…”

Section: Constitutive Modelsmentioning

confidence: 99%

Biaxial Loading of Offshore Monopiles: Numerical Modeling

Sheil

McCabe

2017

Int. J. Geomech.

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In this paper, the FE software package PLAXIS 3D (2013) is used to examine the influence of biaxial lateral loading of a monopile foundation. Two different soil models are adopted to investigate the influence of state-dependent and anisotropic behaviour of soil on monopile response. A series of analyses were carried out where both cyclic and static lateral loads were applied to the pile. Results show that the consideration of biaxial loading significantly influences the pile head load-displacement response in addition to the development of significant accumulated displacements and co-existent soil loosening and densification. Moreover, predictions determined using a state-independent soil model are shown to be significantly non-conservative; these findings have important implications for environmental loading of offshore monopiles.

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“…2) shown in Table 2, required in simulations where E 2 /E 1 >1 (section 7.2), are provided in Table 3. Further details on the development and validation of the HS model parameters are provided in Sheil and McCabe (2013).…”

Section: Belfast Soil Parametersmentioning

confidence: 99%

Pile Group Settlement Estimation: Suitability of Nonlinear Interaction Factors

McCabe

Sheil

2015

Int. J. Geomech.

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Publication InformationMcCabe, B.A., Sheil, B.B. (2015) 'Pile group settlement estimation: suitability of nonlinear interaction factors'. ASCE International Journal of Geomechanics, 13 (3). PublisherAmerican Society of Civil Engineers AbstractIn this paper, predictions of pile settlement determined by appropriate superposition of two-pile interaction factors are compared with those computed from continuum analysis. PLAXIS 3DFoundation is used in conjunction with the non-linear Hardening Soil model and pile group sizes studied are greater than in previous research. The study is presented in two phases: (i) examination of the modulus variation within the group allowed the elimination of some variables and (ii) a comparison of pile settlement predictions in the context of the significant variables. The research shows that predictions using the former approach match the continuum analyses very closely for friction piles and reasonably well for end-bearing piles and show potential for reducing computational time and effort in such problems. The paper also distinguishes between alternative definitions of interaction factor and shows that most accurate predictions arise from interaction factors calculated when only one of the two piles is loaded.

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A finite element–based approach for predictions of rigid pile group stiffness efficiency in clays

Cited by 28 publications

References 20 publications

A Review of Road Embankment Stability on Soft Ground: Problems and Future Perspective

A Review of Road Embankment Stability on Soft Ground: Problems and Future Perspective

Biaxial Loading of Offshore Monopiles: Numerical Modeling

Pile Group Settlement Estimation: Suitability of Nonlinear Interaction Factors

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