Field Study of a Sustainable Land Reclamation Approach Using Dredged Marine Sediment Improved by Horizontal Drains under Vacuum Preloading

Yin, Jian-Hua; Chen, Wen-Bo; Wu, Pei-Chen; Leung, Andy Y. F.; Yin, Zhen-Yu; Cheung, Chris K. W.; Wong, Anthony H. K.

doi:10.1061/jggefk.gteng-12632

J. Geotech. Geoenviron. Eng.

2024

DOI: 10.1061/jggefk.gteng-12632

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Field Study of a Sustainable Land Reclamation Approach Using Dredged Marine Sediment Improved by Horizontal Drains under Vacuum Preloading

Jian-Hua Yin,

Wen-Bo Chen,

Pei-Chen Wu

et al.

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Cited by 2 publications

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Large strain consolidation model for very soft soils with prefabricated horizontal drains considering nonlinear compression and creep

Li,

Song,

Yin

et al. 2024

Acta Geotech.

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The use of horizontal drains assisted by vacuum loading is an effective method for speeding up the consolidation of dredged soil slurry. However, few studies developed models for the large strain consolidation of clayey slurry with prefabricated horizontal drains (PHDs) under self-weight and vacuum loading considering the effects of nonlinear compression and creep. This study introduces a PHD-assisted finite strain consolidation model considering nonlinear compression and limited creep by incorporating an improved elasto-viscoplastic constitutive equation. Firstly, the governing equations for the consolidation of very soft soil with PHDs were derived and solved by the finite-difference method. Subsequently, the proposed consolidation model was verified by comparing the calculations with the finite element solutions, a laboratory model test, and a field trial performed in Hong Kong. Good agreement with the numerical solutions and measured results indicates that the proposed model can capture the consolidation features with PHD combining staged filling and time-dependent vacuum loading. Then, the proposed model was used to estimate a self-weight consolidation test and field test in Japan to show the performance of the proposed model. Finally, parametric studies were conducted to explore the influence of nonlinear compression and creep on the consolidation of soft soil with PHDs.

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Large strain consolidation model for very soft soils with prefabricated horizontal drains considering nonlinear compression and creep

Li,

Song,

Yin

et al. 2024

Acta Geotech.

View full text Add to dashboard Cite

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Fully coupled large-strain radial consolidation analysis for dredged marine slurry treated by prefabricated vertical drain with vacuum and heat preloading

Liu,

Wu,

et al. 2025

Computers and Geotechnics

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Field Study of a Sustainable Land Reclamation Approach Using Dredged Marine Sediment Improved by Horizontal Drains under Vacuum Preloading

Cited by 2 publications

References 47 publications

Large strain consolidation model for very soft soils with prefabricated horizontal drains considering nonlinear compression and creep

Large strain consolidation model for very soft soils with prefabricated horizontal drains considering nonlinear compression and creep

Fully coupled large-strain radial consolidation analysis for dredged marine slurry treated by prefabricated vertical drain with vacuum and heat preloading

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