Results 51 to 60 of about 19,253 (224)

An entropy-based analysis of GPR data for the assessment of railway ballast conditions [PDF]

, 2017
The effective monitoring of ballasted railway track beds is fundamental for maintaining safe operational conditions of railways and lowering maintenance costs.
Alani, Amir, Benedetto, Francesco, Tosti, Fabio   +2 more
core   +1 more source

Railway Track Fault Classification for Predictive Maintenance Using Deep Learning Algorithms Based on a 2D Train‐Track‐Bridge Interaction Model

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
A deep learning framework integrated with a 2D train track bridge simulation model is developed to classify corrugation and ballast faults from vibration signals using time frequency analysis. The method achieves high accuracy and supports predictive maintenance for railway infrastructure.
Shahzor Memon, Lubna Moin, Muhammad Usama, Alhanof Almutairi, Amina Salhi, Imtiaz Hussain, Mujeeb Ur Rehman   +6 more
wiley   +1 more source

Evaluating Different Track Sub-Ballast Solutions Considering Traffic Loads and Sustainability

Infrastructures
The railway industry is seeking high-performance and sustainable solutions for sub-ballast materials, particularly in light of increasing cargo transport demands and climate events.
Guilherme Castro, Jonathan Saico, Edson de Moura, Rosangela Motta, Liedi Bernucci, André Paixão, Eduardo Fortunato, Luciano Oliveira   +7 more
doaj   +1 more source

Anthropogenic Factors Drive the Depletion of Fish Functional Β Diversity Within and Outside Two National Reserves in the Peruvian Amazon

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT Understanding the impact of human activities on fish communities is critical for the effective conservation of Amazonian ecosystems. In this study, we sampled environmental DNA (eDNA) from 17 sites (lakes and rivers) in two Peruvian national reserves, Pacaya‐Samiria and Allpahuayo‐Mishana, using a metabarcoding approach with four genetic ...
B. Prat, C. Mariac, J.‐F. Renno, C. García‐Dávila, C. Angulo, G. Estivals, F. Duponchelle   +6 more
wiley   +1 more source

Dynamic effect of high speed railway traffic loads on the ballast track settlement [PDF]

, 2011
The traditional ballast track structures are still being used in high speed railways lines with success, however technical problems or performance features have led to non-ballast track solution in some cases.
Gabaldón Castillo, Felipe, Goicolea Ruigómez, José María, Nguyen Gia, Khanh   +2 more
core   +1 more source

Toward Zero Waste Mining: Circular Economy of Copper Slags

Global Challenges, Volume 9, Issue 12, December 2025.
Mining and metal extraction processes generate over 90% of global waste. With the rapid increase in population and urbanization, the demand for geotechnical applications and construction materials constantly increases and can absorb the entire quantity of slags generated.
Aleksandar Mitrašinović, Željko Kamberović, Dawei Yu   +2 more
wiley   +1 more source

Shear resistance improvement of oil-contaminated ballast layer with rubber shred inclusions [PDF]

, 2016
Railway ballast, which form an integral part of rail tracks, is highly susceptible to subsistence due to both vibration transmitted by the passing trains, as well as the breakage of ballasts with repeated impact.
Chan, Chee Ming, S.M Johan, Siti Farhanah   +1 more
core  

An interval prediction system for track irregularity after tamping based on multi‐module machine learning and pointwise scaling approach

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 27, Page 4797-4823, 14 November 2025.
Abstract Predicting changes in track irregularity after tamping is important for assisting maintenance decisions and improving construction efficiency. To date, most prediction methods lack consideration for the uncertainties related to tamping effects.
Yuxiao Zhang, Jin Shi, José Nuno Varandas, Youkang Ding   +3 more
wiley   +1 more source

Differential settlements monitoring in railway transition zones using satellite‐based remote sensing techniques

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 27, Page 4824-4844, 14 November 2025.
Abstract Railway track transitions are prone to uneven settlements and track geometry degradation. Traditional monitoring methods are limited in coverage, which highlights the need for novel solutions. This study proposes a method that systematically integrates the high spatial resolution of Persistent Scatterer Interferometric Synthetic Aperture Radar
J. N. Varandas, Y. Zhang, J. Shi, S. Davies, A. Ferreira   +4 more
wiley   +1 more source

Ballast Contamination Mechanisms: A Criterial Review of Characterisation and Performance Indicators

Infrastructures, 2020
Across the world, ballasted railway tracks are utilised extensively due to their cost efficiency, ease of drainage, and capacity to withstand cyclic imposed loadings from heavy trains.
Daniel Bassey, Ben Ngene, Isaac Akinwumi, Victor Akpan, Gideon Bamigboye   +4 more
doaj   +1 more source