A modified equal-strain solution for consolidation behavior of composite foundation reinforced by precast concrete piles improved with cement-treated soil

C Zhang, S Liu, D Zhang, F Lai, T Lu, Y Liu - Computers and Geotechnics, 2022 - Elsevier
To effectively mobilize concrete strength, a newly developed composite pile, the so-called
“Precast Concrete Piles Reinforced with Cement-treated soil (PCCS)”, has been used to …

Towards an improved analytical framework to estimate active earth pressure in narrow c–ϕ soils behind rotating walls about the base

F Lai, D Yang, S Liu, H Zhang, Y Cheng - Computers and Geotechnics, 2022 - Elsevier
Retaining walls are sometimes unavoidably constructed near existing stabilized structures to
maintain stability of narrow retained c-ϕ soils. Although some analytical approaches have …

Bearing capacity of conical footing on anisotropic and heterogeneous clays using FEA and ANN

VQ Lai, J Shiau, CN Van, HD Tran… - Marine Georesources …, 2023 - Taylor & Francis
The paper presents axisymmetric FEA solutions for the bearing capacity of conical footings
embedded in anisotropic and inhomogeneous clays using NGI-ADP model. The bearing …

Determining seismic bearing capacity of footings embedded in cohesive soil slopes using multivariate adaptive regression splines

VQ Lai, F Lai, D Yang, J Shiau, W Yodsomjai… - International Journal of …, 2022 - Springer
Seismic bearing capacity of strip footings in cohesive soil slopes considering various
embedded depths is investigated in this study. Novel solutions using pseudo-static method …

A machine learning regression approach for predicting basal heave stability of braced excavation in non-homogeneous clay

W Yodsomjai, VQ Lai, R Banyong, VB Chauhan… - Arabian Journal of …, 2022 - Springer
This study employs a two-dimensional plane strain finite element limit analysis method to
examine the stability of fully-braced excavations in non-homogeneous clay. The excavation …

Earth pressure in narrow cohesive-fictional soils behind retaining walls rotated about the top: An analytical approach

D Yang, F Lai, S Liu - Computers and Geotechnics, 2022 - Elsevier
There is currently a lack of an available design approach to estimate the earth pressure in
narrow backfills behind retaining walls rotated about the top (RT). The considerations of …

[HTML][HTML] Undrained stability of pit-in-pit braced excavations under hydraulic uplift

F Lai, F Chen, S Liu, S Keawsawasvong, J Shiau - Underground Space, 2022 - Elsevier
Abstract Pit-in-pit (PIP) excavations in an aquifer–aquitard system likely undergo
catastrophic failures under the hydraulic uplift, the associated undrained stability problem …

[HTML][HTML] Physics-based and data-driven modeling for stability evaluation of buried structures in natural clays

F Lai, J Shiau, S Keawsawasvong, F Chen… - Journal of Rock …, 2023 - Elsevier
This study presents a hybrid framework to predict stability solutions of buried structures
under active trapdoor conditions in natural clays with anisotropy and heterogeneity by …

Progressive failure mechanism in granular materials subjected to an alternant active and passive trapdoor

Y Zhao, Q Gong, Y Wu, Z Tian, S Zhou, L Fu - Transportation Geotechnics, 2021 - Elsevier
Underground structures/machines may undergo upward and downward movements due to
construction activities or environmental changes. The ground state could be significantly …

Soil arching effect in reinforced piled embankment for motor-racing circuit: Field tests and numerical analysis

G Wang, X Zhang, X Liu, H Wang, L Xu, H Liu… - Transportation …, 2022 - Elsevier
When constructing superstructures on soft soils, severe issues including excessive
settlements, bearing failures, and large lateral displacements arise and cause challenges for …