{"title":"轨枕组对压载床的横向阻力和稳定性有影响","authors":"Yi Xu, Jie-ling Xiao, Tianheng Jiang, Liyuan Zhuang, Pu-Han Jing, Ping Wang, Tianyou Qi","doi":"10.1080/23248378.2022.2106318","DOIUrl":null,"url":null,"abstract":"ABSTRACT The sleeper group, composed of a certain number of rail sleepers, influences the characterization of lateral resistance and the stability of continuous welded rail (CWR). According to full-scale model tests and discrete element model simulation tests of ballast bed, we established a new lateral stability analysis model of CWR considering the effect of sleeper group and resistance sharing characteristics, and compared it with the traditional model. The case analysis shows that the lateral stability analysis result of CWR is safer when considering the effect of sleeper group. When the curve radius is 300 m, the safety margin of the sleeper group model is about 20.8% larger than that of the traditional model. For CWR with potential large lateral displacement in special sections (such as small-radius and large temperature difference), it is advisable to consider the effect of sleeper group for the lateral stability analysis.","PeriodicalId":48510,"journal":{"name":"International Journal of Rail Transportation","volume":"11 1","pages":"732 - 747"},"PeriodicalIF":3.4000,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"The sleeper group influences on lateral resistance and stability of ballast bed\",\"authors\":\"Yi Xu, Jie-ling Xiao, Tianheng Jiang, Liyuan Zhuang, Pu-Han Jing, Ping Wang, Tianyou Qi\",\"doi\":\"10.1080/23248378.2022.2106318\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT The sleeper group, composed of a certain number of rail sleepers, influences the characterization of lateral resistance and the stability of continuous welded rail (CWR). According to full-scale model tests and discrete element model simulation tests of ballast bed, we established a new lateral stability analysis model of CWR considering the effect of sleeper group and resistance sharing characteristics, and compared it with the traditional model. The case analysis shows that the lateral stability analysis result of CWR is safer when considering the effect of sleeper group. When the curve radius is 300 m, the safety margin of the sleeper group model is about 20.8% larger than that of the traditional model. For CWR with potential large lateral displacement in special sections (such as small-radius and large temperature difference), it is advisable to consider the effect of sleeper group for the lateral stability analysis.\",\"PeriodicalId\":48510,\"journal\":{\"name\":\"International Journal of Rail Transportation\",\"volume\":\"11 1\",\"pages\":\"732 - 747\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2022-07-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Rail Transportation\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1080/23248378.2022.2106318\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"TRANSPORTATION SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Rail Transportation","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/23248378.2022.2106318","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"TRANSPORTATION SCIENCE & TECHNOLOGY","Score":null,"Total":0}
The sleeper group influences on lateral resistance and stability of ballast bed
ABSTRACT The sleeper group, composed of a certain number of rail sleepers, influences the characterization of lateral resistance and the stability of continuous welded rail (CWR). According to full-scale model tests and discrete element model simulation tests of ballast bed, we established a new lateral stability analysis model of CWR considering the effect of sleeper group and resistance sharing characteristics, and compared it with the traditional model. The case analysis shows that the lateral stability analysis result of CWR is safer when considering the effect of sleeper group. When the curve radius is 300 m, the safety margin of the sleeper group model is about 20.8% larger than that of the traditional model. For CWR with potential large lateral displacement in special sections (such as small-radius and large temperature difference), it is advisable to consider the effect of sleeper group for the lateral stability analysis.
期刊介绍：
The unprecedented modernization and expansion of rail transportation system will require substantial new efforts in scientific research for field-deployable technologies. The International Journal of Rail Transportation (IJRT) aims to provide an open forum for scientists, researchers, and engineers in the world to promote the exchange of the latest scientific and technological innovations in rail transportation; and to advance the state-of-the-art engineering and practices for various types of rail based transportation systems. IJRT covers all main areas of rail vehicle, infrastructure, traction power, operation, communication, and environment. The journal publishes original, significant articles on topics in dynamics and mechanics of rail vehicle, track, and bridge system; planning and design, construction, operation, inspection, and maintenance of rail infrastructure; train operation, control, scheduling and management; rail electrification; signalling and communication; and environmental impacts such as vibration and noise. The editorial policy of the new journal will abide by the highest level of standards in research rigor, ethics, and academic freedom. All published articles in IJRT have undergone rigorous peer review, based on initial editor screening and anonymous refereeing by independent experts. There are no page charges and colour figures are included in the online edition free of charge.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
