To find out the shear bearing capacity and its calculation method of ultra-high performance concrete (UHPC) keyed joints, a full-scale model test of five UHPC keyed joints and a UHPC flat joint were carried out with the joint type and lateral compres...

The rockfall events on transport lines in mountainous areas occur frequently and are sudden and random. Probability-based reliability design of protective structures is a necessary and effective means to reduce the hazard risk. However, the method of...

To address the issue of settlement and cracking of adjacent roads during the excavation of urban foundation pits, the research object was extended from a one-dimensional structure to a two-dimensional structure based on the Winkler theory. Firstly, a...

Hazard susceptibility assessment is generally a probabilistic modeling based on the spatial distribution characteristics of hazards, but the hazards have spatial heterogeneity. In order to solve the spatial heterogeneity of hazards, the collapses and...

In order to further study the influence of site effects from engineering ground motion, a comparative analysis of site effects from ground motion in the Sichuan strong earthquake area was carried out based on two empirical methods, namely, horizontal...

In the electric truck route planning problem with time windows, electric trucks may need to queue up when they go to charging stations for charging. To study the impact of different charging station configuration schemes on vehicle route planning and...

In view of non-uniform operation rules of ship locks and non-synchronous ship scheduling in the joint navigation scheduling of cascade hubs, a multi-dimensional nonlinear programming (MDNP) model considering ship priority was constructed with the com...

In order to explore the variation of the vulnerability of the en-route network caused by cascading failure, the vulnerability of the en-route network was analyzed based on the cascading failure process of different attack methods. By combining with t...

Land use type in China is complex, and it is difficult to accurately identify urban land use type by relying on a single remote sensing image or point of interest (POI) data. To address this issue, a fine identification method combining remote sensin...

The service environment of alpine electric multiple units (EMUs) is affected by temperature for a long time, and the vehicle suspension element parameters and under-rail parameters have strong seasonal variation characteristics. To investigate the in...

Wheel-rail profile compatibility has an important influence on the dynamic performance of rail vehicles. The present standard JM₃ wheel profile has a large difference in equivalent conicity when it is matched with different types of rail profiles in ...

To reduce insufficient displacement in the contact area between the movable point frog’s point rail and wing rail, minimize transition force at the transition points of point rail, and improve the frog’s longitudinal smoothness, an optimization metho...

Rail grinding occurs when the rail grinder is in traveling status, which is affected by the dynamic performance of the vehicle. Rail grinding is generally set as constant power grinding, involving a wheel-track contact relationship, wheel-track grind...

The hydro-pneumatic suspension has the functions of cushioning and damping, body attitude adjustment, etc., but its structure is complex, with large pressure impact and high wear resistance and sealing. The excellent suspension cylinder structure, hy...

Mining dump trucks are mainly used for small-scale mine transportation, often run on poor roads or with serious overloading and other conditions. Hydro-pneumatic suspension is widely used in large construction vehicles due to its nonlinear characteri...

The wheel-rail interaction force is the key index to evaluate the operation quality of rail vehicles. An identification method based on the square root cubature Kalman filter (SRCKF) algorithm was proposed for online monitoring of the wheel-rail vert...

Cr alloy seal ring and YG-6 cemented carbide seal ring were used to pair with impregnated graphite seal ring in a petrochemical pump at 300–400 ℃, respectively. It was found that the Cr alloy seal ring maintained good sealing performance for a long-t...

In order to study the influence of frictional self-excited vibration of a pantograph-catenary system on the contact loss between the carbon strip and contact wire, a finite element model of the pantograph-catenary system at the rigid and flexible tra...

The large eddy simulation (LES) method was applied to transiently simulate the wavy vortex field within the annular gap in Taylor-Couette and investigate the variation of fluctuations between wavy vortices. The wavy vortex field within the annulus ga...

Finite element model simulation of the pantograph and overhead conductor rail (OCR) system is slow, and the time cost of calculation is high. Therefore, the simulation method and process of the pantograph and OCR system using three-dimensional contac...

In the wide speed range of sensorless control, the traditional super-twisting second-order sliding mode observer algorithm had a problem that the error of rotor position estimation would change with the speed in the permanent magnet synchronous motor...

For the compressive sensing algorithm, the correlation between measurement matrix and sparse base always determines the accuracy of signal recovery. In order to improve the performance of the compressive sensing algorithm in signal reconstruction in ...

To meet the demand for 5G communication in tunnels and increase the utilization rate of trackside antennas, a dual-band trackside antenna based on metamaterials was proposed, which could support both automatic train control systems and civil 5G wirel...

In order to improve the force performance and durability of assembled bridge piers, it was proposed to adopt the assembled bridge piers with hybrid connection of cast-in-place fiber-reinforced engineered cementitious composites (ECC) and assembled mo...

The intensifying global climate change is increasingly affecting the operational performance of existing transportation infrastructure due to extreme climatic events such as heavy precipitation, high temperatures, low temperatures, and drought, leadi...

In bridge health monitoring based on finite element models, Bayesian model updating techniques are commonly used to quantify the uncertainties of important parameters in the finite element models, so as to address the issue of non-uniqueness in model...

The positioning and lowering construction of large prefabricated steel caissons for cross-sea bridges is facing significant threats from the complex marine environment, including extreme waves and currents. In-depth research on the dynamic characteri...

Since it is difficult to accurately select representative super-high-dimensional random phase angles, the good lattice point with power generator method (GLPPGM) was utilized to generate samples of representative track irregularities, which were appl...