Assessing the Performance of a Heavy Haul Railway Viaduct Through Monitoring Traffic Loads and Dynamic Effects

2017 ◽  
pp. 770-780
Author(s):  
Fulvio Busatta ◽  
Pilate Moyo
Keyword(s):  
Dynamic Effects ◽  
Traffic Loads ◽  
Heavy Haul ◽  
Heavy Haul Railway

Field test and numerical analysis of Insulated rail joints in heavy-haul railway

2021 ◽  
Vol 298 ◽  
pp. 123905
Author(s):  
Hong Xiao ◽  
Guangpeng Liu ◽  
Dongwei Yan ◽  
Yue Zhao ◽  
Jiaqi Wang ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Field Test ◽  
Heavy Haul ◽  
Heavy Haul Railway

Resilient modulus of coarse-grained subgrade soil for heavy-haul railway: An experimental study

2021 ◽  
Vol 150 ◽  
pp. 106959
Author(s):  
Rusong Nie ◽  
Baoli Sun ◽  
Wuming Leng ◽  
Yafeng Li ◽  
Bo Ruan
Keyword(s):  
Experimental Study ◽  
Resilient Modulus ◽  
Coarse Grained ◽  
Subgrade Soil ◽  
Heavy Haul ◽  
Heavy Haul Railway

An Improved Marginal Index Method to Diagnose Poor Welded Joints of Heavy-haul Railway

2021 ◽  
Author(s):  
Binghuan Xiao ◽  
Xuegeng Mao ◽  
Jinzhao Liu ◽  
Liubin Niu ◽  
Xiaodi Xu ◽  
...  
Keyword(s):  
Welded Joints ◽  
Index Method ◽  
Heavy Haul ◽  
Heavy Haul Railway

Partial cable-stayed bridge in the application of heavy haul railway

2018 ◽  
Author(s):  
Guilin Li ◽  
Di Shi ◽  
Xiaojiang Zhang
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Type System ◽  
Central China ◽  
Cable Stayed Bridge ◽  
Stay Cables ◽  
Analysis Theory ◽  
Heavy Haul ◽  
Live Loads ◽  
Heavy Haul Railway

<p>Taking the partial cable-stayed bridge with main span of 248 meters which used on the railway coal corridor from western Inner Mongolia to central China as an example. the adaptability and particularity of partial cable-stayed bridge in the span range are analyzed based on structural static analysis theory. Pylon and girder rigid fixity, pier and beam separation system is applied, H- shaped bridge towers, the double cell concrete box girder and the monofilament epoxy coating prestress strand is used in this bridge. The results indicate that stay-cables contribution to the overall stiffness value of 33%. In order to improve the structure performance of the controlling area such as cross section, bridge tower adopt the high tower type system, depth-span ratio is determined to be 1/4.35, C60 high performance concrete is applied. The main pier bearing adopts double 190000 kN large tonnage steel spherical bearings because of the heavy dead loads and the heavy live loads, using the high-performance materials and Partial sealing technique to ensure the bearing durability, stability and long service life. The structure of the bridge meets the requirements of heavy haul railway according to the analysis.</p>

scholarly journals WHEEL–RAIL WEAR INVESTIGATION ON A HEAVY HAUL BALLOON LOOP TRACK THROUGH SIMULATIONS OF SLOW SPEED WAGON DYNAMICS

Transport ◽  
2018 ◽  
Vol 33 (3) ◽  
pp. 843-852 ◽  
Author(s):  
Yan Quan SUN ◽  
Maksym SPIRYAGIN ◽  
Colin COLE ◽  
Dwayne NIELSEN
Keyword(s):  
Dynamic Behaviour ◽  
Railway Track ◽  
Contact Friction ◽  
Slow Speed ◽  
Wear Process ◽  
Contact Wear ◽  
Rail Wear ◽  
Heavy Haul ◽  
Curve Radius ◽  
Heavy Haul Railway

Heavy haul railway track infrastructure are commonly equipped with balloon loops to allow trains to be loaded/unloaded and/or to reverse the direction of travel. The slow operational speed of trains on these sharp curves results in some unique issues regarding the wear process between wheels and rails. A wagon dynamic system model has been applied to simulate the dynamic behaviour in order to study the wheel–rail contact wear conditions. A wheel–rail wear index is used to assess the wear severity. The simulation shows that the lubrication to reduce the wheel–rail contact friction coefficient can significantly reduce the wear severity. Furthermore, the effects of important parameters on wheel–rail contact wear including curve radius, wagon speed and track superelevation have also been considered.

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