Three-dimensional numerical simulation for mechanized tunnelling in soft ground: the influence of the joint pattern

NA Do, D Dias, P Oreste, I Djeran-Maigre - Acta Geotechnica, 2014 - Springer
The main purpose of this study was to provide a three-dimensional numerical model, which
would allow the tunnel lining behaviour and the displacement field surrounding the tunnel to …

Modelling of soil behaviour with hypoplasticity

D Mašín - Springer Series in Geomechanics and Geoengineering …, 2019 - Springer
Hypoplasticity has been around for some thirty years now. Starting from the crazy and yet
brilliant idea of Dimitrios Kolymbas in 1980s, it matured in the first half of 1990s into a …

Clay hypoplasticity model including stiffness anisotropy

D Mašín - Géotechnique, 2014 - icevirtuallibrary.com
A hypoplastic model for clays is developed to predict anisotropy of very small strain stiffness.
The existing hypoplastic model, with explicit formulation of the asymptotic state boundary …

Clay hypoplasticity with explicitly defined asymptotic states

D Mašín - Acta Geotechnica, 2013 - Springer
A new rate-independent hypoplastic model for clays is developed. The model is based on
the recently proposed approach enabling explicit incorporation of the predefined asymptotic …

Influence of grouting on rehabilitation of an over-deformed operating shield tunnel lining in soft clay

D Zhang, Z Liu, R Wang, D Zhang - Acta Geotechnica, 2019 - Springer
A number of shield tunnels in soft clay often undergo large deformation during their service
life especially when subjected to nearby engineering activities. The grouting on two sides of …

Model validation and calibration via back analysis for mechanized tunnel simulations–The Western Scheldt tunnel case

C Zhao, AA Lavasan, T Barciaga, V Zarev… - Computers and …, 2015 - Elsevier
Abstract In this research, Finite Element (FE) method is applied to simulate the shield
supported mechanized excavation of Western Scheldt tunnel in the Netherlands. Both 2D …

Dynamic stability assessment of reservoir colluvial landslide using a hypoplastic clay constitutive model considering the effects of drying-wetting cycles on the hydro …

Y Xue, F Miao, Y Wu, D Dias - Engineering Geology, 2022 - Elsevier
The hydro-fluctuation belt of reservoir landslides undergoes repeated drying-wetting (D–W)
cycles due to the annual fluctuation of water level in the Three Gorges Reservoir Area …

The influence of cyclic preloadings on cyclic response of Zbraslav sand

J Duque, J Roháč, D Mašín, J Najser… - Soil Dynamics and …, 2023 - Elsevier
This article presents a comprehensive experimental investigation on Zbraslav sand under
monotonic and cyclic loading. Initially, the material response at large strains was …

Protective effect of partition excavations of a large-deep foundation pit on adjacent tunnels in soft soils: a case study

X Bian, H Hu, C Zhao, J Ye, Y Chen - Bulletin of Engineering Geology and …, 2021 - Springer
The safety of metro tunnels is seriously threatened when protective measures are not well
organized during adjacent foundation pit excavations in soft ground. To date, the protective …

Pile responses to side-by-side twin tunnelling in stiff clay: Effects of different tunnel depths relative to pile

MA Soomro, CWW Ng, K Liu, NA Memon - Computers and Geotechnics, 2017 - Elsevier
In densely built areas, the development of underground transportation systems often
involves twin tunnels, which are sometimes unavoidably constructed adjacent to existing …