Numerical modelling of tunnel face stability in homogeneous and layered soft ground

ASN Alagha, DN Chapman - Tunnelling and Underground Space …, 2019 - Elsevier
Soft ground tunnelling in urban areas is more frequently being performed using the shield
method. Due to its great influence on both ground settlement and construction safety, face …

Reliability analysis with scarce information: Comparing alternative approaches in a geotechnical engineering context

M Beer, Y Zhang, ST Quek, KK Phoon - Structural Safety, 2013 - Elsevier
In this paper the problem of dealing with scarce information in a reliability analysis is
investigated in a geotechnical engineering context. Common probabilistic methods are …

Load-transfer-associated settlements of a piled building during shield tunnelling in soft ground

G Zheng, R Wang, H Lei, T Zhang, Q Fan - Tunnelling and Underground …, 2023 - Elsevier
This study investigates the response of piled buildings to shield tunnelling in soft ground
based on both a case history and numerical modelling. The findings indicate that building …

Reliability-oriented sensitivity analysis in presence of data-driven epistemic uncertainty

G Sarazin, J Morio, A Lagnoux, M Balesdent… - Reliability Engineering & …, 2021 - Elsevier
Reliability assessment in presence of epistemic uncertainty leads to consider the failure
probability as a quantity depending on the state of knowledge about uncertain input …

Study of the collapse mechanism of shield tunnels due to the failure of segments in sandy ground

G Zheng, T Cui, X Cheng, Y Diao, T Zhang… - Engineering Failure …, 2017 - Elsevier
Catastrophic tunnel collapses usually start with the partial failure of tunnel linings. However,
research on the mechanism of such progressive collapses is limited. Among such collapses …

A multi-factor comprehensive risk assessment method of karst tunnels and its engineering application

SC Li, J Wu - Bulletin of Engineering Geology and the Environment, 2019 - Springer
The tunnel collapse, a large deformation of surrounding rock, water and mud inrush are the
main geological disasters in the process of tunnel construction. In order to control the above …

Face stability analysis of EPB shield tunnels in dry granular soils considering nonuniform chamber pressure and a dynamic excavation process

X Hu, C He, G Walton, Y Fang - International Journal of …, 2021 - ascelibrary.org
The support pressure at the tunnel face of earth pressure balance (EPB) shield machines is
usually assumed to be uniform from the crown to the invert, which is a notable simplification …

Dual-failure-mechanism model for face stability analysis of shield tunneling in sands

X Liu, F Wang, H Fang, D Yuan - Tunnelling and Underground Space …, 2019 - Elsevier
This study proposes an improved model for face stability analysis with a dual-failure-
mechanism based on the limit equilibrium method. The failure mechanisms consist of …

Horizontal Deformation Efficiency of a Pile Controlled by the Capsuled Expansion Technique: A Field Trial and Numerical Analysis

J Huang, Y Diao, G Zheng, Y Su, M Wang… - International Journal …, 2024 - ascelibrary.org
The capsule expansion technique (CET) is a novel active measure to control the
deformation of subsurface structures induced by underground engineering construction …

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 …