Scenario-based assessment of operating boundaries and failure modes in braking-supervised MPC for high-speed train virtual coupling
Available online 4 November 2026
Reduced-headway high-speed train operation is constrained by stale leader information, braking-capability mismatch, jerk-limited brake build-up, and finite-horizon computation. This study assesses the...
Modelling and experimental validation of a configurable end-stop electromagnetic energy harvester for transient railway vibrations
Available online 28 October 2026
Railway infrastructure is subjected to transient and impulsive vibrations that present challenges for conventional resonant energy harvesters. Switches and crossings (S&C), in particular, generate significant...
Modelling deterioration of fouled railway ballast bed: DEM study using a soft-shell contact model
Available online 28 October 2026
Ballast fouling progressively intensifies with operational service time, causing severe mechanical degradation of ballast bed and jeopardizing train operational safety. Previous studies have predominantly...
Static and Dynamic Performance of GFRP-Reinforced Timber Railway Sleepers: Experimental and Numerical Analysis
Available online 27 October 2026
Glass fiber-reinforced polymer (GFRP) wrapping offers a lightweight method for upgrading timber railway sleepers, but its effectiveness depends on how the reinforcement layout alters stiffness, damping,...
Corrosion-induced degradation of rock bolt–grout systems in subsea tunnel primary support
Available online 5 October 2026
Rock bolt-grout systems are critical load-transfer components in the subsea tunnel primary support, but their material deterioration and structural damage under aggressive groundwater remain insufficiently...
Sensitivity and reliability analysis for track structures based on probability statistics
September 2026
This study integrates field-measured train load and temperature load data into the sensitivity and reliability analysis framework of the slab track, thereby overcoming the limitations of existing studies...
Intelligent detection technologies for tunnel lining structural defects based on ground penetrating radar images: Research status, challenges, and prospects
September 2026
Tunnel lining structures are susceptible to internal defects over long-term service. As ground penetrating radar (GPR) enables continuous scanning and offers nondestructive, efficient inspection, it...
Traction system capacity and operational quality of the EDS transportation system based on the real-time simulation platform
September 2026
•For the first time, a real-time simulation assessment at a full speed range of 600 km/h was conducted on a digital test line spanning three stations and two sections with a total length of 106 km,...
Numerical investigation of hydrodynamic forces on twin cylindrical piers with open-channel flow
September 2026
Twin cylindrical bridge piers are widely used in practical engineering and inevitably impacted by open-channel flow during their service life, i.e., floods. In this paper, numerical analyses are conducted...
A combined fuzzy control method for virtual coupling trains under different wheel-rail adhesion conditions
September 2026
Virtual coupling technology has become an important research focus in urban railway systems because of its potential to enhance operational efficiency and transportation capacity. Although many urban...
Chloride diffusion and life prediction of railway concrete box girders based on cellular automata
September 2026
Addressing the coupled effects of chloride erosion and freeze-thaw cycling faced by concrete box girders in extreme cold and salt-eroded environments, this paper takes a 32 m prestressed concrete simply...
Flue gas carbonation curing under ambient pressure: A sustainable approach for precast railway concrete products
September 2026
This study investigates the ambient-pressure flue gas carbonation curing of wet-cast concrete, aiming to improve concrete performance through CO₂ utilization. High-pressure flue gas carbonation and...
Numerical investigation of grout propagation in rough-walled fractures of tunnel surrounding rock
Available online 22 September 2026
•A grout-water two-phase flow model incorporating interphase slip and drag force was developed.•Three-dimensional rough-walled fractures were reconstructed using the W-M fractal function.•Flowing water...
Probability Density Evolution Method-Based Modeling and Vibration Analysis of Random Interlayer Voids in the Track Slab of Train-Track-Bridge Systems
Available online 21 September 2026
•A refined stochastic TTB model is established, integrating nonlinear interlayer contact and randomized damage evolution to accurately represent voiding-induced degradation in CRTSⅡ ballastless tracks.•Detailed...
Measured temperature gradients and solar-induced longitudinal bridge–track interaction in a long-span railway cable-stayed bridge with ballastless tracks
Available online 21 September 2026
To investigate the longitudinal bridge–track interaction of ballastless tracks under measured temperature gradients, field temperature monitoring was conducted on a long-span railway cable-stayed bridge...
Balancing superplasticizer and alkali-free accelerator for optimal high-performance shotcrete (HPS)
June 2026
•Dosage-dependent interaction between SP and alkali-free accelerator in HPS was studied.•A 2% SP dosage optimized HPS pumpability but reduced accelerator efficiency and diminished strength.•An alkali-free...
CSwinUKAN: An enhanced U-Net architecture with swin-transformer and Kolmogorov–Arnold network modification for tunnel lining cracks segmentation
June 2026
Concrete is the most widely utilized material for tunnel linings. However, concrete structures are prone to cracking due to various environmental factors or actions. The formation and propagation of...
Comparison of static response and structural type of pile-supported box subgrade with and without displacement-limiting piles
June 2026
To address the problems of conventional box-type subgrades, which are susceptible to differential settlement and excessive lateral displacement. This paper proposes an innovative method that employs...
Vibration assessment and mitigation for an over-track building in a large-scale transportation hub induced by subway and high-speed railway trains
June 2026
This paper investigates the structural vibration issues in an airport hotel, a specific type of building, induced by subway and high-speed railway (HSR) operations. Firstly, an assessment framework...
Mechanistic insights into shrinkage mitigation in low-heat portland cement by the combined use of MEA and SRA
June 2026
Drying-shrinkage cracking is an important durability concern in railway concrete, especially for ballastless track structures that require strict dimensional stability. Combining low-heat Portland cement...
Modelling of ground-borne vibration due to a spatially periodic harmonic moving load in soils with vertical parameter variability using TLM-PML
June 2026
Train-induced environmental vibration has become an increasingly critical issue in recent years due to rapid urbanization and the large-scale expansion of urban transportation infrastructure. For accurate...
A comprehensive review of railway track condition monitoring: From sensor selection to data processing for defect-oriented, task-driven applications
June 2026
This comprehensive review examines recent advances in railway track condition monitoring, summarizing state-of-the-art sensor technologies and data-driven analytical approaches. Representative monitoring...
Running safety of high-speed railway cable-stayed-suspension hybrid system bridges under seismic action
March 2026
Cable-stayed-suspension hybrid bridges offer high rigidity and strong spanning capacity. This study takes a 1488 m main-span hybrid bridge for combined highway-railway use as the research object. A...
Energy-based analysis of the effect of fastener failure on ballast bed under train load
March 2026
This study investigates the impact of fastener failure on the mechanical characteristics and energy distribution of a railway ballast bed under dynamic train loading. A high-fidelity model was developed...
Development of a multiscale continuous-discontinuous model and its application in blasting analysis of tunnel in calcareous sand strata
March 2026
•SOIL_AND_FOAM model is implemented in Distinct Lattice Spring Model (SF-DLSM) to study blasting responses of calcareous sand.•A multiscale method coupling LS-DYNA and SF-DLSM is proposed to simulate...
