曲线超高计算的优化方法及应用
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摘要
为进一步优化曲线超高计算方法,文章以现有计算方法为基础,指出速度取值是曲线超高计算的关键,提出了将"速度-距离"曲线模拟的速度和曲线允许通过速度相结合来进行曲线超高计算的方法。给出了曲线超高检算中实设超高、欠超高、过超高、超高顺坡率、欠超高顺坡率等主要指标的优化取值方案,以及超高顺坡率和欠超高顺坡率的简化计算方法。以此为基础,对石济客运专线和衢九铁路曲线超高进行了计算。通过实车检测可知,所提出的方案能够取得较好的旅客舒适度,从而验证了优化计算方法和标准的合理性。该方法和标准已在全国高速铁路广泛使用,为我国高速铁路动车组运行的高平稳性和高舒适度提供了保障。
In order to further optimize the calculation method of curve superelevation,based on the existing calculation methods,this paper pointed out that the key of curve superelevation calculation is to select the value of velocity,and proposed a method of curve superelevation calculation by combining the speed simulated by velocity-distance curve with the allowable speed of curve. The optimization value selection scheme of main indexes such as practical superelevation,deficient superelevation,surplus superelevation,superelevation downslope rate and deficient superelevation downslope rate in curve superelevation checking was given,and the simplified calculation methods of superelevation downslope rate and deficient superelevation downslope rate were also put forward. O n this basis,the curve superelevations of Shijiazhuang-Jinan passenger dedicated railway and Quzhou-Jiujiang railway were calculated.The actual vehicle test shows that the scheme can achieve better passenger comfort,thus verifying the rationality of the optimization calculation method and standard.This method and standard have been widely used in high speed railway,which provide a guarantee for high stability and comfort of high speed electric multiple units in C hina.
In order to further optimize the calculation method of curve superelevation,based on the existing calculation methods,this paper pointed out that the key of curve superelevation calculation is to select the value of velocity,and proposed a method of curve superelevation calculation by combining the speed simulated by velocity-distance curve with the allowable speed of curve. The optimization value selection scheme of main indexes such as practical superelevation,deficient superelevation,surplus superelevation,superelevation downslope rate and deficient superelevation downslope rate in curve superelevation checking was given,and the simplified calculation methods of superelevation downslope rate and deficient superelevation downslope rate were also put forward. O n this basis,the curve superelevations of Shijiazhuang-Jinan passenger dedicated railway and Quzhou-Jiujiang railway were calculated.The actual vehicle test shows that the scheme can achieve better passenger comfort,thus verifying the rationality of the optimization calculation method and standard.This method and standard have been widely used in high speed railway,which provide a guarantee for high stability and comfort of high speed electric multiple units in C hina.
引文
[1]练松良.改变超高对曲线钢轨侧磨的影响[J].铁道建筑,1990,30(7):5-9.
[2]陈旭.曲线超高在铁路工程设计中的关键影响[J].铁道学报,2011,33(11):6-12.
[3]陈修平.高速铁路曲线超高设计的研究[J].铁道勘察,2010(5):80-81.
[4]楼少俊,贡照华,夏越.关于曲线超高的设置问题[J].铁道建筑,2011,51(6):7-9.
[5]国家铁路局.铁路轨道设计规范:TB 10082—2017[S].北京:中国铁道出版社,2017.
[6]中华人民共和国铁道部.铁路轨道设计规范:TB 10082—2005[S].北京:中国铁道出版社,2010.
[7]张齐坤,易思蓉.铁路客运专线旅客舒适度与超高参数取值探究[J].高速铁路技术,2014,5(6):1-4.
[8]曾树谷.关于曲线允许欠超高标准的探讨[J].铁道建筑,1997,37(3):6-9.
[9]国家铁路局.铁路线路设计规范:TB 10098—2017[S].北京:中国铁道出版社,2017.
[10]国家标准局.铁道车辆动力学性能评定和试验鉴定规范:GB 5599—85[S].北京:国家标准出版社,1986.
[2]陈旭.曲线超高在铁路工程设计中的关键影响[J].铁道学报,2011,33(11):6-12.
[3]陈修平.高速铁路曲线超高设计的研究[J].铁道勘察,2010(5):80-81.
[4]楼少俊,贡照华,夏越.关于曲线超高的设置问题[J].铁道建筑,2011,51(6):7-9.
[5]国家铁路局.铁路轨道设计规范:TB 10082—2017[S].北京:中国铁道出版社,2017.
[6]中华人民共和国铁道部.铁路轨道设计规范:TB 10082—2005[S].北京:中国铁道出版社,2010.
[7]张齐坤,易思蓉.铁路客运专线旅客舒适度与超高参数取值探究[J].高速铁路技术,2014,5(6):1-4.
[8]曾树谷.关于曲线允许欠超高标准的探讨[J].铁道建筑,1997,37(3):6-9.
[9]国家铁路局.铁路线路设计规范:TB 10098—2017[S].北京:中国铁道出版社,2017.
[10]国家标准局.铁道车辆动力学性能评定和试验鉴定规范:GB 5599—85[S].北京:国家标准出版社,1986.