BALLAST

作品数:81被引量:168H指数:7
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Improving lateral track strength after ballast maintenance
《Railway Sciences》2025年第2期141-158,共18页Stephen Wilk Dingqing Li 
Purpose–MxV Rail conducted multiple single tie push tests(STPTs)between 2020 and 2023 to assess the changes in lateral tie resistance from tonnage accumulation,dynamic track stabilizers(DTS),tie type and ballast cond...
关键词:Lateral track strength Single tie push test(STPT) Track buckle TAMPING Shoulder width Crib height 
Influence of particle size distribution and normal pressure on railway ballast:A DEM approach
《High-Speed Railway》2025年第1期28-36,共9页Z.Yan Ali Zaoui W.Sekkal 
"PSPC Régions n°2"("Projets Structurants des Pôles de Compétitivitéen région");funded by Conseil Régional Hauts-de-France and BPI.
Developing the railway transport sector is a challenging scientific,economic and social research topic starting with ensuring human security.The main topic that should be developed in that sense is the ballast stabili...
关键词:DEM BALLAST Direct shear test Particle size distribution 
Shear strength characteristics of mixing slag-stone ballast reinforcement with tire geo-scrap using large-scale direct shear tests
《Railway Engineering Science》2025年第1期94-107,共14页Morteza Esmaeili Hamidreza Heydari Maziar Mokhtari Sara Darvishi 
Utilizing the ballast layer with more durable and stable characteristics can help avoid significant expenses due to decreased maintenance efforts.Strengthening the ballast layer with different types of reinforcements ...
关键词:Ballast deterioration Ballast stabilization Steel slag aggregates Large-scale direct shear test Waste tire geoscrap 
A comparison on the effects of coal fines and sand fouling on the shear behaviors of railway ballast using large scale direct shear tests
《Journal of Traffic and Transportation Engineering(English Edition)》2025年第1期52-67,共16页Xu Zhang Shunying Ji Yang Feng Yongjun Li Chunfa Zhao 
supported by the National Natural Science Foundation of China under Grant Nos.12202107,51578469 and 11790283;the State Key Laboratory of Traction Power,Southwest Jiaotong University under Grant No.TPL2009;the Guangdong Basic and Applied Basic Research Foundation under Grant No.2020A1515111116;the Guangzhou Basic and Applied Basic Research Foundation under Grant Nos.202102020636 and 2024A04J2067。
Railway ballast is easily contaminated by different fouling material and the fouled ballast always causes the deterioration of railway track.Many previous studies focused on the effect of a certain kind of fouling mat...
关键词:Railway ballast Fouled ballast Shear strength Direct shear test CONTAMINATION 
Adaptive Path-Following Control for Displacement Vessels at any Loading Conditions Under Ocean Disturbances
《哈尔滨工程大学学报(英文版)》2024年第4期900-913,共14页Ali Hasanvand Mohammad Saeed Seif 
Challenges associated with path-following control for commercial displacement vessels under varying loading and draught conditions are addressed in this study.Adaptive control with the adaptation law technique is used...
关键词:Full scale Ballast and full load Adaptive path-following Model reference Ocean disturbances 
Dynamic squeezing behavior of tamping machine in railway maintenance
《High-Speed Railway》2024年第4期241-247,共7页Liang Gao Shunwei Shi Chang Liu Yixiong Xiao Chunyu Wang Yuze Wang 
supported by the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation under Grant Number GZC20240099;the Fundamental Research Funds for the Central Universities under Grant Number 2024XKRC034 and 2022JBQY009。
Tamping squeeze is essential for maintaining ballasted tracks.Previous studies have simulated squeezing behavior as a linear motion with a constant squeezing distance,which is unsuitable for various ballast beds in th...
关键词:Ballast bed Tamping maintenance Squeezing behavior Compacting motion Releasing motion 
Influence of wind-blown sand content on the mechanical quality state of ballast bed in sandy railways
《Railway Engineering Science》2024年第4期533-550,共18页Yihao Chi Hong Xiao Zhihai Zhang Yang Wang Zhongxia Qian Weize Zhao 
supported by the National Natural Science Foundation of China (Grant No. 52372425);the Fundamental Research Funds for the Central Universities (Science and Technology Leading Talent Team Poject) Grant No. 2022JBXT010。
During the operation of sandy railways, the challenge posed by wind-blown sand is a persistent issue. An in-depth study on the influence of wind-blown sand content on the macroscopic and microscopic mechanical propert...
关键词:Sandy railway Wind-blown sand content Discrete element method(DEM) Macroscopic and microscopic mechanical properties Maintenance and repair strategies 
Macro-microscopic dynamic characteristics of the ballast bed induced by the variation of moisture content
《Particuology》2024年第7期118-127,共10页Shuchen Wang Longlong Fu Yongjia Qiu Haonan Xi Shunhua Zhou 
The Natural Science Foundation of Shanghai(grant No.21ZR1465400)is greatly appreciated for providing financial support to this research.
Due to the excellent drainage performance of the ballast,existing studies mainly focus on the dynamic response of ballast under field capacity or saturation.Attention has rarely been paid to dynamic changes in moistur...
关键词:Railway ballast Flowing surface water Wireless particle sensor Multidimensional motion Full-scale model test 
Experimental and numerical settlement analysis of railway track over geogrid reinforced ballast被引量:1
《Railway Sciences》2024年第3期311-331,共21页Mohammed Y.Fattah Mahmood R.Mahmood Mohammed F.Aswad 
Purpose-The main objective of the present research is to investigate the benefits of using geogrid reinforcement in minimizing the rate of deterioration of ballasted rail track geometry resting on soft clay and to exp...
关键词:TRACK ettlement BALLAST FINITEELEMENTS 
Reducing Operation Emissions and Improving Work Efficiency Using a Pure Electric Wheel Drive Tractor被引量:1
《Engineering》2024年第6期230-245,共16页Chang-Kai Wen Wen Ren Qing-Zhen Zhu Chun-Jiang Zhao Zhen-Hao Luo Sheng-Li Zhang Bin Xie Zhi-Jun Meng 
supported by the National Key Research and Development Plan of China(2022YFD2001201);the Beijing Postdoctoral Research Foundation(2023-ZZ-112);the National Natural Science Foundation of China(52272444);the Natural Science Foundation of Jiangsu Province(BK20230548).
In response to the problems of excessive greenhouse-gas and particulate emissions and the low traction efficiency of conventional diesel tractors in the field,a purely electric wheel-side drive tractor was studied,inc...
关键词:Electric tractor Ploughing unit Torque distribution Active ballast Traction performance 
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