Stability analysis of twin horse-shoe shaped tunnels in rock mass

O Rahaman, J Kumar - Tunnelling and Underground Space Technology, 2020 - Elsevier
This study examines the stability of a single and twin horse-shoe shaped unlined tunnels
laid in rock media and loaded with surcharge pressure on ground surface. The tunnels are …

Stability of dual circular tunnels in a rock mass subjected to surcharge loading

R Zhang, Y Xiao, M Zhao, H Zhao - Computers and Geotechnics, 2019 - Elsevier
This paper investigates the stability of dual circular tunnels in a rock mass subjected to
surcharge loading using adaptive finite element limit analysis (AFELA). The tunnels are …

Stability of dual square tunnels in rock masses subjected to surcharge loading

Y Xiao, M Zhao, R Zhang, H Zhao, G Wu - Tunnelling and Underground …, 2019 - Elsevier
The stability of dual unlined square tunnels subjected to surcharge loading in rock masses,
obeying Generalized Hoek-Brown (GHB) failure criterion, is investigated by adaptive finite …

Investigation of the cause of shield-driven tunnel instability in soil with a soft upper layer and hard lower layer

J Zhang, Y Liang, T Feng - Engineering Failure Analysis, 2020 - Elsevier
This paper presents a limit analysis of a tunnel in non-homogeneous soil using the upper-
bound limit analysis in combination with finite element technology and a mesh adaptive …

Evaluation and analysis of the causes of a landslide and treatment measures during the excavation of a tunnel through a soil-rock interface

J Zhang, M Kuang, Y Zhang, T Feng - Engineering Failure Analysis, 2021 - Elsevier
Combined with the results of field tests and field investigations, the upper-bound finite
element adaptive encryption method based on the strength reduction method was used to …

Advanced finite element limit analysis and machine learning for assessing the stability of square tunnels in rock slope

A Kumar, VB Chauhan - Transportation Infrastructure Geotechnology, 2024 - Springer
This study investigates the stability of an unlined square-shaped tunnel in a rock slope
subjected to a uniformly distributed surcharge loading using numerical simulation based on …

A stable node-based smoothed finite element method for stability analysis of two circular tunnels at different depths in cohesive-frictional soils

T Vo-Minh, L Nguyen-Son - Computers and Geotechnics, 2021 - Elsevier
This paper investigates the stability of two circular tunnels at different depths in cohesive-
frictional soils subjected to surcharge loading using a stable node-based smoothed finite …

Semianalytical solution to determine minimum safety thickness of rock resisting water inrush from filling-type karst caves

ZH Xu, J Wu, SC Li, B Zhang… - International Journal of …, 2018 - ascelibrary.org
A semianalytical solution to determine the minimum safety thickness of the rock resisting
water inrush from filling-type karst caves was investigated. Mechanical analyses of the filling …

Stability of two circular tunnels at different depths in cohesive-frictional soils subjected to surcharge loading

Y Xiao, M Zhao, R Zhang, H Zhao, W Peng - Computers and Geotechnics, 2019 - Elsevier
Adaptive finite element limit analysis (AFELA) is employed to investigate the stability of two
circular tunnels at different depths in cohesive-frictional soils subjected to surcharge loading …

Upper bound analysis of stability of dual circular tunnels subjected to surcharge loading in cohesive-frictional soils

F Yang, X Zheng, J Zhang, J Yang - Tunnelling and Underground Space …, 2017 - Elsevier
The stability of dual circular tunnels subjected to surcharge loading in cohesive-frictional
soils, obeying the Mohr–Coulomb failure criterion, is determined by an upper bound finite …