Results 51 to 60 of about 19,165 (224)

Discrete Element Analysis of Shape Effect on the Shear Behaviors of Ballast

Scientific Reports, 2023
Railway ballast layer is an indispensable component of railway transport. Ballast morphology plays an important effect in ballast-sleeper interaction and the durability of ballast layer.
Wenjie Hou, Ang Li, Weimin Song
doaj   +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

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

A Global Account of Established Non‐Native Fish Species

Global Change Biology, Volume 31, Issue 8, August 2025.
This study compiles the most complete global database of non‐native fish species that have successfully established themselves in new freshwater and marine environments. It documents 1535 species across 193 countries, identifies their main introduction routes—such as aquarium trade, aquaculture, and artificial waterways—and highlights that many ...
Phillip J. Haubrock, Mariana Novello, Neil Angelo Abreo, Dagmara Błońska, Ana Clara Sampaio Franco, Ismael Soto, Giuseppe Castaldelli, Stelios Katsanevakis, Antonín Kouba, Paride Balzani, Irmak Kurtul, Ali Serhan Tarkan, Elizabeta Briski, Robert Britton   +13 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

Parallel computing aided analyses of dynamic buckling for railway track infrastructure

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 19, Page 2943-2968, 5 August 2025.
Abstract This paper presents a scalable parallel computing framework for simulating track buckling under dynamic train loads, enabling large‐scale railway track stability analysis. A three‐dimensional (3D) track model is developed using finite element‐based Euler–Bernoulli beam formulations for rails, dynamic force inputs, and nonlinear interactions at
Dan Agustin, Qing Wu, Maksym Spiryagin, Colin Cole, Esteban Bernal   +4 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 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

Biological Flora of Britain and Ireland: Cytisus scoparius*

Journal of Ecology, Volume 113, Issue 7, Page 1877-1933, July 2025.
Broom is an attractive and common native plant across Britain, Ireland and most of Europe, and yet it is considered a harmful and invasive weed around the rest of the world. This is aided by broom thriving on poor dry soils, helped by using green stems for photosynthesis and having root nodules to fix nitrogen.
Peter A. Thomas, Monika Dering, Grzegorz Iszkuło, Marta Kujawska, Adrian Łukowski, Mariola Rabska, Katarzyna Sękiewicz, Dominik Tomaszewski, Łukasz Walas, Marian J. Giertych   +9 more
wiley   +1 more source

Tests of geosynthetics-reinforced ballast stressed state under heavy trains [PDF]

MATEC Web of Conferences, 2019
Nowadays requirements for strength and stability of railway subgrade are increased. It occurs due to raising of train speed and axle load. Some sections of subgrade that were previously considered stable do not satisfy safety requirements. In this regard,
Petriaev Andrei, Konon Anastasia
doaj   +1 more source