Results 51 to 60 of about 16,972 (255)

Performance monitoring and analysis of a yield-control support system in squeezing rock [PDF]

open access: yes, 2010
ISBN 978-0-415-58654-
Barla, Giovanni Battista   +2 more
core  

Multifield Coupling Mechanisms and Support Strategy for Creep–Seepage Interaction in Water‐Bearing Argillaceous Soft Rock Tunnels

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Water‐bearing argillaceous soft rock, characterized by high porosity, low bearing capacity, and water sensitivity, is prone to instability under creep–seepage coupling effects in tunnel engineering, threatening construction safety. This study investigates the soft rock of a water conveyance tunnel in Henan Province, China.
Xuejiu Wang   +3 more
wiley   +1 more source

Freeze-Thaw Durability and Long-Term Performance Evaluation of Shotcrete in Cold Regions [PDF]

open access: yes, 2017
This study’s aim was to evaluate the freeze-thaw durability of shotcrete in cold regions and predict its long-term performance. One benchmark mix design from the WSDOT was chosen to prepare samples for performance evaluation.
Qiao, Pizhong, Zhou, Zhidong
core  

Mechanical Characteristics and Collapse Process Simulation of Tunnel Under Seismic Loading During Construction: A Case Study of a Deep Diversion Tunnel in Southwest China

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
To investigate the collapse mechanisms of diversion tunnels during construction under seismic loading, a coupled continuum‐discrete numerical simulation method was employed. Before seismic excitation, the initial support system was generally stable, with minor damage observed at the arch foot and arch crown (damage coefficient <0.033).
Bin Gan   +5 more
wiley   +1 more source

Shotcrete 3D Printing ‐ Interaction of nozzle geometry, homogeneity and hardened concrete properties

open access: yesce/papers, 2023
Shotcrete 3D Printing (SC3DP) applies concrete layer by layer using a wet‐spray process. The resulting hardened concrete properties of the applied SC3DP layers (e.g. height, width or mechanical strength) are largely dependent on the selected material and
Niklas Freund   +6 more
semanticscholar   +1 more source

Prevention and Controlling Techniques for High Ground Temperature Disaster in Deep Underground Engineering: A Review

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
The issue of high geothermal temperatures in deep underground engineering has become increasingly prominent, posing severe threats to safe construction, operation, and maintenance. Employing a bibliometric approach, this study first analyzes the definition, causes, and disaster‐affected objects of high geothermal temperatures.
Wei Chen   +9 more
wiley   +1 more source

On the Design of Permanent Rock Support Using Fibre-Reinforced Shotcrete

open access: yesFibers, 2023
Fibre-reinforced shotcrete (sprayed concrete) is one of the major components in the support system for tunnels in hard rock. Several empirical design methodologies have been developed over the years due to the complexity and many uncertainties involved ...
A. Sjölander, A. Ansell, E. Nordström
semanticscholar   +1 more source

Analysis of Temperature and Displacement Fields in the Freeze Construction of Overlapping Cross‐Passages Within Water‐Rich Sand Layers

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
In the construction of an F‐type cross‐passage in an overlapping‐type shield tunnel using the artificial ground freezing method, the development of the distal frozen wall is difficult to control, and ground deformation is influenced by the superimposed disturbance of successive construction steps. Existing studies are insufficient to fully characterize
Jinlei Li   +4 more
wiley   +1 more source

Numerical modelling of ground-tunnel support interaction using bedded-beam-spring model with fuzzy parameters [PDF]

open access: yes, 2011
The study of the ground-tunnel interaction by introducing a predetermined degree of variation (fuzziness) in some parameters of the chosen model is presented and discussed.
Barbero, Monica   +2 more
core  

The pioneer of intelligent and sustainable construction in tunnel shotcrete applications: a comprehensive experimental and numerical study on a self-sensing and self-heating green cement-based composite

open access: yesMeasurement science and technology
In this study, a self-sensing and self-heating natural fibre-reinforced cementitious composite for the shotcrete technique was developed using Kenaf fibres.
M. Abedi   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy