高寒山区30‰长大坡道列车下坡限速研究

详细信息    查看官网全文

• 英文论文题名：A Study of the Railway Speed Limitation on the Long and Steep Slope in High-Altitude Mountainous Areas
• 论文作者：任冲 ; 范晓佳
• 英文论文作者：Ren Chong ; Fan Xiaojia ; China Railway Eryuan Engineering Group Co.Ltd ; School of Transportation and Logistics ; Southwest Jiaotong University
• 年：2016
• 作者机构：中铁二院工程集团有限责任公司;西南交通大学交通运输与物流学院;
• 论文关键词：长大坡道 ; 黏着系数 ; 紧急制动 ; 闸瓦温升 ; 下坡限速
• 英文论文关键词：long and steep slope ; adhesion coefficient ; emergency braking ; temperature rising of braking shoes ; limiting speed
• 会议召开时间：2016-10-14
• 会议录名称：“川藏铁路建设的挑战与对策”2016学术交流会论文集
• 语种：中文
• 分类号：U212.34
• 学会代码：ZGTD
• 会议名称：“川藏铁路建设的挑战与对策”2016学术交流会
• 会议地点：中国四川成都
• 主办单位：中国铁道学会、中国铁道学会工程分会、中国中铁股份有限公司、中铁二院工程集团有限责任公司
• 学会名称：中国铁道学会
• 页数：9
• 文件大小：1344k
• 原文格式：O
• 会议级别：全国

摘要

为保证列车运行安全,在长大坡道上必须对列车的下坡速度加以限制,它是计算区间运行时分和制定司机操纵策略的依据,而在高寒山区长大坡道上,列车的速度不仅受坡度影响,与气候条件也有一定关系。论文以川藏铁路为研究对象,在30‰长大坡道上,分别对HXD_2双机牵引2700t货物列车、HXD_(1d)双机牵引1200t旅客列车的下坡限速进行研究。通过分析在雨雪天气轨面潮湿情况下,黏着系数下降对列车制动的影响,按照分段累加法确定出紧急制动距离下的列车限速。根据相关试验数据,分析货物列车下坡调速制动过程中的闸瓦温升情况。最终研究得出:川藏铁路在30‰的坡道上,HXD_2双机牵引2700t货物列车下坡限速宜为65km/h,HXD_(1d)双机牵引1200t旅客列车下坡限速宜为110km/h。研究结语对高寒山区铁路设计具有一定的借鉴意义。
To ensure the safety of railway operation,the speed of the train in operation on the steep and long slopes should be strictly restricted.This restriction/limitation of speed is the basis for calculation of the travel time and also for development of control strategies for drivers.The railway with gradient of 30‰ is the study object.The other assumptions for this study are as follows:the freight train is driven by HXD_2 electric locomotive with maximal load of 2700 t.The passenger train is driven by HXD_(1d) electric locomotive with maximal load of 1200 t.The analysis of the speed limitationis bases on those two types of trains.Under a certain loading weight,the speed limitation for freight trains is both restricted by the emergency braking distance and the temperature increasing of the braking shoes;the speed limitation for the passenger trains is only restricted by the emergency braking distance.The correlation between the adhesion coefficient and the braking force is analyzed by accumulating the calculation results from separate sections.Based on the relevant experimental data,the problem of the temperature increasing of the wheel and braking shoes is analyzed.Combined with the above aspects,the research eventually got the conclusion:on the railway with gradient of 30‰,the speed limitation of freight train with HXD_2 locomotive and with load 2700 t should be 65km/h,and for the passenger train with locomotive HXD_(1d) and with load 1200 t should be 110km/h.The research results have some reference and significance for the railway design in high-altitude mountain areas.

引文

[1]TG/01—2014铁路技术管理规程(普速铁路部分)[S].北京:中国铁道出版社,2014.TG/01—2014 Regulations of railway technical operation(Normal speed railway)[S].Beijing:China railway publishing house,2014.
    [2]马国忠,毛节铭.轨道交通运载工具与列车牵引计算[M].成都:西南交通大学出版社,2011.Ma Guozhong,Mao Jieming.Rail transit vehicle and train traction calculation[M].Chengdu:Southwest Jiaotong University,2011.
    [3]闫海峰,石红国,等.高寒山区长大坡道对铁路运输能力的影响研究[R].成都:西南交通大学,2015.Haifeng Yan,Hongguo Shi,et al.A study of railway transport capacity on the long and steep slope in high-altitude mountainous areas[R].Chengdu:Southwest Jiaotong University,2015.
    [4]中铁二院.川藏线计算报告[R].成都:中国中铁二院工程集团有限责任公司,2014.CREEC.The calculation report of the Sichuan-Tibet line[R].Chengdu:CREEC,2014.
    [5]黄问盈,杨宁清,黄民.我国铁道列车紧急制动距离限值核定原则的探讨[J].中国铁道科学,2003,24(3):79-88.Wenying Huang,Ningqing Yang,Min Huang.Discussion on the principle of limiting the value of the emergency braking distance of the railway train in China[J].China railway science,2003,24(3):79-88.
    [6]铁道部.TB/T 1407—1998列车牵引计算规程[S].北京:中国铁道出版社,1998.Ministry of Railways.TB/T 1407—1998 Regulations on railway train traction calculation[J].Beijing:China railway publishing house,1998.
    [7]闫海峰,朱志国,等.复杂艰险山区铁路避难线设计问题研究[R].成都:西南交通大学,2015.Haifeng Yan,Zhiguo Zhu,et al.Study on evacuation line design problem hard mountain railway complex[R].Chengdu:Southwest Jiaotong University,2015.