重载铁路快速弹条扣件配套轨枕设计
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摘要
结合重载铁路工程项目,将引自国外的快速弹条扣件系统应用到靖神铁路工程。为解决该扣件与国内铁路现有成熟产品配套的问题,在既有国铁Ⅲ型轨枕的基础上,结合快速弹条扣件系统的特点,对扣件进行了配套普通轨枕和桥枕的设计,采用预应力混凝土轨枕设计方法对桥枕的受力及承载能力进行了检算;根据轨枕产品的试制试验情况对接口设计方案进行了细节设计,优化了预埋件周边尺寸控制等,提出了针对预埋件接口的生产制作要求及制作工艺建议。结合工程应用过程中遇到的实际问题,对护轨采用50 kg/m钢轨这一超出设计使用范围的情况进行了相关说明。结果表明,经配套设计的轨枕可满足扣件安装及工程实际应用的需要。
Combined with the heavy haul railway project,the fastclip fastening system introduced from abroad was applied to Jing-Shen Railway project. In order to solve the problem of matching the fastening with the existing products of domestic railways,based on the existing type III sleepers of the national railways and combined with the characteristics of the fastclip fastening system,the design of matching ordinary sleepers and bridge sleepers was carried out,and the stress and bearing capacity of bridge sleepers were checked by the design method of prestressing concrete sleepers; the joint was made according to the trial-production test of sleepers. Detailed design of the port design was carried out,and the size around the embedded parts was optimized. The production requirements and manufacturing process suggestions for the port of the embedded parts were put forward. Moreover, combined with the practical problems encountered in engineering application,the application of 50 kg/m rail as guardrail of the bridge sleeper was explained,which was beyond the design range for this time. The results show that the designed sleeper can meet the needs of fastening installation and engineering application.
Combined with the heavy haul railway project,the fastclip fastening system introduced from abroad was applied to Jing-Shen Railway project. In order to solve the problem of matching the fastening with the existing products of domestic railways,based on the existing type III sleepers of the national railways and combined with the characteristics of the fastclip fastening system,the design of matching ordinary sleepers and bridge sleepers was carried out,and the stress and bearing capacity of bridge sleepers were checked by the design method of prestressing concrete sleepers; the joint was made according to the trial-production test of sleepers. Detailed design of the port design was carried out,and the size around the embedded parts was optimized. The production requirements and manufacturing process suggestions for the port of the embedded parts were put forward. Moreover, combined with the practical problems encountered in engineering application,the application of 50 kg/m rail as guardrail of the bridge sleeper was explained,which was beyond the design range for this time. The results show that the designed sleeper can meet the needs of fastening installation and engineering application.
引文
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[16]白玲,汪加蔚.预应力混凝土轨枕的设计计算[J].混凝土与水泥制品,2009(1):27-30.
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[18]尤瑞林,范佳,刘伟斌,等.30 t轴重重载铁路预应力混凝土轨枕设计研究[J].铁道建筑,2015(1):113-118.
[2]卓卉.国外重载铁路运输进展与我国重载铁路运输分析[J].中国煤炭,2014,40(S1):331-334,339.
[3]尹成斐.重载对铁路轨道结构破坏作用分析[J].铁道建筑,2012(9):135-137.
[4]丁荣,沈坚锋,肖鑫,等.重载铁路轨道结构受力特性仿真分析[J].华东交通大学学报,2015,32(3):36-41.
[5]侯尧花,黄晋英,张占一,马广轩.基于声振互易法的铁路扣件弹条模态试验研究[J].铁道标准设计,2018,62(6):20-24.
[6]张向辉,程陆战,安满常.与Pandrol扣件配套使用的Ⅲ型无挡肩轨枕的制造技术[J].铁道建筑,2009(4):111-113.
[7]林红松,颜华.30 t轴重重载铁路混凝土轨枕设计与试验研究[J].高速铁路技术,2016,7(3):69-73.
[8]杜香刚.重载铁路新型高稳定性预应力混凝土轨枕的研发[J].铁道建筑,2016(3):113-117.
[9]王创,井国庆,庞玲,等.中俄高速铁路有砟道床技术条件分析—时速350 km高铁设计参考与借鉴[J].铁道标准设计,2017,61(6):20-23.
[10]潘得路公司.FC-16系列快速弹条扣件系统安装养护维修操作手册[Z].2017.
[11]中华人民共和国铁道部.TB 2034—1988铁路轨道强度检算法[S].北京:中国铁道出版社,1988.
[12]中华人民共和国住房和城乡建设部.GB 50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2015
[13]中华人民共和国铁道部.TB/T 1878—2002预应力混凝土枕疲劳试验方法[S].北京:中国铁道出版社,2002.
[14]中华人民共和国铁道部.TB/T 1879—2002预应力混凝土枕静载抗裂试验方法[S].北京:中国铁道出版社,2002.
[15]中国铁道科学研究院铁道建筑研究所.TY—083预应力混凝土轨枕设计方法[Z].北京:中国铁道科学研究院,1994.
[16]白玲,汪加蔚.预应力混凝土轨枕的设计计算[J].混凝土与水泥制品,2009(1):27-30.
[17]朔黄铁路发展有限责任公司.朔黄重载铁路轮轨关系及延长钢轨使用寿命试验研究[Z].北京:朔黄铁路发展有限责任公司,2010.
[18]尤瑞林,范佳,刘伟斌,等.30 t轴重重载铁路预应力混凝土轨枕设计研究[J].铁道建筑,2015(1):113-118.