Failure analysis of progressive instability and deformation law of excavation face in sand cobble stratum under cutting disturbance by shield cutter

Q Xu, J Xie, L Zhang, X He, L Lu, Y Li - Engineering Failure Analysis, 2023 - Elsevier
Shield construction plays a crucial role in the development of underground infrastructure.
However, as a complex engineering process, it can lead to excavation face instability and …

The effects of excavating twin tunnels during cyclic loading on the progressive settlement of existing footing

J Xiao, J Ma, Z Liu, J Xue - Engineering Failure Analysis, 2024 - Elsevier
Tunnels may be constructed in a pair undercrossing existing geotechnical structures
exposed to cyclic loading. Such construction changes the stress state in the ground in …

Effect of Particle Size Distributions (PSDs) on ground responses induced by tunnelling in dense coarse-grained soils: A DEM investigation

Y Xie, J Yang, X Zheng, T Qu, C Zhang, J Fu - Computers and Geotechnics, 2023 - Elsevier
Tunnelling-induced ground responses in coarse-grained soils often exhibit complex
behaviours such as soil arching and progressive ground instability. However, the effect of …

Effect of the symmetrical eccentric load on the soil arching effect in granular soil via 2D DEM trapdoor tests: An insight from particle motion to mechanical behaviour

X Ou, S Yin, J Gong, J Jiang, M Chen - Advanced Powder Technology, 2024 - Elsevier
The soil arching effect under the symmetrical eccentric load (SEL) is vital for the design of
the tunnel or buried pipeline. However, the mechanism of the soil arching effect under the …

[HTML][HTML] Numerical and analytical studies on the coupling effects of unloading and cutterhead vibration on tunnel face in dry sandy ground

J He, S Liao, M Liu, M Iwanami, Y Men - Underground Space, 2024 - Elsevier
When tunnelling in difficult ground conditions, shield machine would inevitably produce
significant ground loss and vibration, which may disturb the ground ahead of the tunnel face …

[HTML][HTML] Stability of tunnel face in unsaturated sand possessing apparent cohesion: A micro-macro analytical approach

J He, S Liao, M Liu, I Motoi, J Xiao - Soils and Foundations, 2023 - Elsevier
Although the stability of tunnel face in the dry and saturated sandy ground is widely studied,
the unsaturated sandy ground which possesses apparent cohesion is more common in …

[HTML][HTML] Three-dimensional hydro-mechanical coupling numerical simulation of shield-driven cross-river twin tunnels: A case study

C Wang, X Liu, D Song, E Wang, G Yan, R Zhou - Underground Space, 2024 - Elsevier
With the rapid development of urban underground space, the construction of shield-driven
cross-river twin tunnels is increasing, and the complex hydro-mechanical coupling effects …

Evaluating Ground Reaction Curves from Single to Multiple Trapdoor Tests

R Rui, R Ding, J Han, Y Ye, S He… - Journal of Geotechnical …, 2024 - ascelibrary.org
Ground reaction curves (GRCs) are increasingly used to simulate the progressive
development of soil arching resulting from differential movement in soil. In this study, 20 …

Ground Deformation of Shield Tunneling through Composite Strata in Coastal Areas

X Wu, J Xu, S Wang, P Sha, Z Han, X Chen, S Shu… - Buildings, 2024 - mdpi.com
In order to mitigate ground deformation during shield construction in both upper soft and
lower hard strata of coastal areas, a numerical simulation was executed. This simulation …