Results 81 to 90 of about 9,059,926 (288)

The influence of structural response on ballast performance on a high speed railway

, 2014
Track for modern ballasted high speed railway lines typically uses continuous welded rail with continuous ballast. Continuous ballast is often specified over features involving discontinuity of track support including structural movement or expansion ...
Powrie, W., Hayward, M., Thompson, D.J., Watson, G.V.R, Le Pen, L., Morley, S., Milne, D.   +6 more
core   +1 more source

An Estimation of the Heat Load Distribution on the Divertor Target Using the CSD Model

Contributions to Plasma Physics, EarlyView.
ABSTRACT Handling the heat load on the divertor target is a critical issue in the design of fusion reactors. Estimating the heat load, supported by computationally efficient simulations with varying design parameters, provides valuable input to high‐level design discussions and the development of design guidelines.
Kazuhiro Yamada, Kazuo Hoshino, Gakushi Kawamura, Hang Si, Akiyoshi Hatayama   +4 more
wiley   +1 more source

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Video analytics for the detection of near-miss incidents on approach to railway level crossings [PDF]

, 2014
Recent modelling of socio-economic costs by the Australian railway industry in 2010 has estimated the cost of level crossing accidents to exceed AU$116 million annually.
Aminmansour, Sina, Sina Aminmansour, Christian Wullems, Maire, Frederic, Frederic Maire, Wullems, Christian   +5 more
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Human factors at railway level crossings : key issues and target road user groups [PDF]

, 2007
As the interface between roads and train lines, railway level crossings are the potential site for vehicle-train collisions. Due to the lack of financial viability in solely approaching this issue from an engineering perspective, there is increased ...
Ibrahim, Nadja R., Davey, Jeremy D., Wallace, Angela M.   +2 more
core  

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Bayesian Network Modeling Applied on Railway Level Crossing Safety [PDF]

, 2017
Nowadays, railway operation is characterized by increasingly high speed and large transport capacity. Safety is the core issue in railway operation, and as witnessed by accident/incident statistics, railway level crossing (LX) safety is one of the most critical points in railways.
Liang, Ci, Ghazel, Mohamed, Cazier, Olivier, Bouillaut, Laurent, El Koursi, El Miloudi   +4 more
openaire   +3 more sources

Evaluating ITS interventions at railway level crossings using a driving simulator [PDF]

, 2013
This paper assesses Intelligent Transportation Systems (ITS) to identify safety systems that are most likely to reduce driver errors at railway crossings.
Tavassoli Hojati, Ahmad, Kim, Inhi, Larue, Gregoire S., Rakotonirainy, Andry, Ferreira, Luis   +4 more
core  

Energy evolution‐based damage quantification and failure prediction of fault zone tunnel lining concrete: A novel acoustic emission–strain energy coupling approach

Deep Underground Science and Engineering, EarlyView.
This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu, Dongming Zhang, Mingliang Zhou, Shengjun Duo, Hongwei Huang   +4 more
wiley   +1 more source