Supporting behavior evolution of ultra-deep circular diaphragm walls during excavation: Monitoring and assessment methods comparison

Q Xu, J Xie, H Zhu, L Lu - Tunnelling and Underground Space Technology, 2024 - Elsevier
Ultra-deep circular excavations present unique challenges in geotechnical engineering due
to their complex behavior and the scarcity of relevant case studies. This paper presents a …

Predicting long-term displacements of deep tunnels using an artificial neural network optimized by sand cat swarm optimization with Chebyshev map

M Zaheri, C Li, M Ranjbarnia, D Dias - Environmental Earth Sciences, 2024 - Springer
Long-term tunnel displacement prediction is of great engineering significance to tunnel
maintenance and hazard warning. To that end, this paper provides a novel combination idea …

Numerical modelling of multiple excavations in an ultra-deep foundation using an enhanced distinct lattice spring model with modified cam clay model

Z Li, GF Zhao, X Wei, X Deng - Tunnelling and Underground Space …, 2024 - Elsevier
The control of foundation deformation has garnered significant attention. This study focuses
on understanding the deformation induced by excavation activities in real foundation …

Effects of fissure properties on the tunnel damage evolutions: Insights from DIC-based 3D printing experiments and meshless numerical simulations

S Yu, J Wang, Y Gao, W Sun, J Lu, R Liu… - … and Underground Space …, 2024 - Elsevier
Unknown pre-existing fissures have great impacts on the failure modes and mechanical
properties of tunnels. However, there are few discussions about the influence of different …

[HTML][HTML] Improved calculation method for corresponding characteristics of foundation pit excavation on the diaphragm wall

X Cui, Z Li, H He, S Ma - Alexandria Engineering Journal, 2024 - Elsevier
The excavation of the pit causes displacement of the surrounding soil, and the excessive
deformation causes damage to the existing support structure, which in turn affects the safety …

Longitudinal analysis model for segment lining uplift during shield tunnelling considering shearing dislocation of circumferential joints

L Ma, C Xue, H Yang, Y Mo - Applied Mathematical Modelling, 2024 - Elsevier
During shield tunnelling, longitudinal deformation occurs in the shield tunnel structure owing
to the buoyancy generated by the synchronous slurry, which has adverse effects on the …

Numerical modeling of ground surface settlement due to tunneling in urban areas

D Wang, Y Lin, Y Wu, C Lin, C Zong - Multiscale and Multidisciplinary …, 2023 - Springer
The rise in urban traffic challenges has spurred the expansion of subterranean
transportation systems within metropolitan areas. In densely populated regions, surface …

Centrifuge Model Tests on the Effects of Navigable Channel Excavation and Seawall Construction on a Subsea Shield Tunnel Below

X Wang, D Yuan, W Luo, S Zhang, H Liu - Symmetry, 2023 - mdpi.com
As subsea shield tunnels are becoming increasingly popular, especially in coastal or river
cities, the complicated construction environment poses multiple challenges that need to be …

Optimizing Sequential Excavation Method for Ground Settlement Control in Tehran Subway Tunnel Line 6

M Aghajari, AN Dehghan, SH Lajevardi - Geotechnical and Geological …, 2024 - Springer
The present study aims to investigate the excavation method, excavation sequence, and
optimum trailing distance between excavation stages of the tunnel face to control ground …

An automated health monitoring system for uncoordinated deformation between the metro station side wall and row piles

W Fan, F Zhou, S Xie, M Zhao, S Deng, J Li… - Journal of Civil …, 2023 - Springer
With the rapid development of urban rail transportation, there is a growing number of
projects involving new foundation pits near existing metro stations. One particular risk …