Influence of ground temperature on shotcrete‐to‐rock adhesion in tunnels

L Duan, Y Zhang, J Lai - Advances in Materials Science and …, 2019‏ - Wiley Online Library
Long and deep tunnels are increasingly designed and built worldwide, often in severe
geothermal environments characterized by high temperature in the rocks. This issue cannot …

Theoretical analysis on the deformation of existing tunnel caused by under-crossing of large-diameter slurry shield considering construction factors

Z Ding, MB Zhang, X Zhang, XJ Wei - Tunnelling and Underground Space …, 2023‏ - Elsevier
With the expansion of underground space networks, new tunnels especially large-diameter
shields under-crossing existing tunnels have been commonly practiced. To obtain a better …

[HTML][HTML] Centrifuge modelling of tunnelling below existing twin tunnels with different types of support

Q Fang, X Liu, K Zeng, X Zhang, M Zhou, J Du - Underground Space, 2022‏ - Elsevier
Tunnel excavation below existing tunnels produces ultimate and serviceability problems to
the existing tunnels. The behaviours of induced stresses on the existing tunnels haven't yet …

Parameterized modeling and safety simulation of shield tunnel based on BIM-FEM automation framework

H Huang, B Ruan, X Wu, Y Qin - Automation in Construction, 2024‏ - Elsevier
To address the challenges of low modeling efficiency and data loss in traditional methods,
an automated numerical simulation analysis framework is proposed to enhance the safety …

Construction techniques and mechanical behavior of newly-built large-span tunnel ultra-short distance up-crossing the existing shield tunnel with oblique angle

Y Zhang, L Tao, J Liu, X Zhao, F Guo, L Tan… - … and Underground Space …, 2023‏ - Elsevier
In recent years, with the rapid increase of urban subway lines, crossing engineering has
become another complex problem of modern tunnel construction techniques, and especially …

Settlement characteristics of large-diameter shield excavation below existing subway in close vicinity

Q Fang, J Du, J Li, D Zhang, L Cao - Journal of Central South University, 2021‏ - Springer
A case of Qinghuayuan tunnel excavation below the existing Bei**g Subway Line 10 is
presented. The new Qinghuayuan tunnel, part of the Bei**g-Zhangjiakou High-speed …

An upper-bound analytical model of blow-out for a shallow tunnel in sand considering the partial failure within the face

P Li, K Chen, F Wang, Z Li - Tunnelling and Underground Space …, 2019‏ - Elsevier
This paper proposes a three-dimensional analytical model of blow-out for a shallow tunnel
in sand. Upper bound theorem is adopted to deduce the analytical solutions of limit support …

Mechanical behaviours of existing tunnels due to multiple-tunnel excavations considering construction sequence

X Liu, H Fang, A Jiang, D Zhang, Q Fang, T Lu… - … and Underground Space …, 2024‏ - Elsevier
An analytical method utilizing the extended complex variable approach is presented to
investigate the mechanical characteristics of pre-existing tunnels affected by the excavation …

Analytical solutions of non-Darcy seepage of grouted subsea tunnels

Y Zhang, D Zhang, Q Fang, L **ong, L Yu… - … and Underground Space …, 2020‏ - Elsevier
Fluid flow in porous media is very important in a wide range of hydraulic and geotechnical
engineering fields. The theoretical basis of fluid flow in porous media is based on the …

Improved analytical method for pile response due to foundation pit excavation

J Liu, C Shi, C Cao, M Lei, Z Wang - Computers and Geotechnics, 2020‏ - Elsevier
Owing to the rapid growth of urban population and fast developments of urbanization, new
pit excavations are inevitably conducted in close proximity to existing structures, which will …