跨坐式单轨车辆基地咽喉区线路平面优化研究
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摘要
城市轨道交通车辆基地工程量和占地面积均较大。为了缩短跨坐式单轨车辆基地咽喉区长度,减小其用地面积,从跨坐式单轨道岔的结构特点和分类出发,重点研究关节形道岔的尽端式车辆基地。依照相关规范线路设计参数,类比平行错移线路反向曲线连接模型,分析车辆基地咽喉区反向曲线的线群特征,对影响咽喉区优化重要变量(如出入线位置、道岔组合方式、关键径路、接入不同出入线的线群间距)的作用机理进行论述。在以上研究的基础上,首次提出"关键径路"咽喉区设计变量和计算道岔数量配比的"径路增加法",并结合设计案例阐述了以线群作为模块的咽喉区设计。研究表明,采用该优化规律及线群模块,可将咽喉区长度从266. 01 m缩短至217. 38 m。
The quantities and floorarea of urban rail transit vehicle base are relatively large. In order to shorten the throat sectionlength and land floorarea of straddle type monorail vehicle base,the end-type vehicle base with joint turnouts is studied from the structural characteristics and classification of straddle-type monorail turnouts. According to the design parameters of relevant codes,the reverse curve connection model of parallel staggered lines is analogized to analyze the line group characteristics of the reverse curve of throatsection of vehicle base. The mechanism of the important variables affecting the optimization of throatsection,such as the position of entry and exit lines,the combination mode of turnouts,the key routes,and the distance between different groups of entry lines,is discussed. On the basis of the above research,this paper puts forward for the first time the design variables of "critical path "for throat section and the "routes increase method "for calculating thequantitative proportionof turnouts,and elaborates the throat floor area design with the line group as the module combining with the design case. The results show that the length of throat sectioncan be shortened from 266. 01 m to 217. 38 m by using this optimization rule and line group module.
The quantities and floorarea of urban rail transit vehicle base are relatively large. In order to shorten the throat sectionlength and land floorarea of straddle type monorail vehicle base,the end-type vehicle base with joint turnouts is studied from the structural characteristics and classification of straddle-type monorail turnouts. According to the design parameters of relevant codes,the reverse curve connection model of parallel staggered lines is analogized to analyze the line group characteristics of the reverse curve of throatsection of vehicle base. The mechanism of the important variables affecting the optimization of throatsection,such as the position of entry and exit lines,the combination mode of turnouts,the key routes,and the distance between different groups of entry lines,is discussed. On the basis of the above research,this paper puts forward for the first time the design variables of "critical path "for throat section and the "routes increase method "for calculating thequantitative proportionof turnouts,and elaborates the throat floor area design with the line group as the module combining with the design case. The results show that the length of throat sectioncan be shortened from 266. 01 m to 217. 38 m by using this optimization rule and line group module.
引文
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[2]尚漾波,叶霞飞.国内外城市轨道交通车辆基地规模比较分析[J].都市快轨交通,2009,22(3):16-19.
[3]梁晓东.跨座式单轨交通系统车辆基地站场设计[J].铁道运输与经济,2005,27(7):15-18.
[4]高华.轨道交通车辆段站场设计部分细节探讨[J].铁道勘察,2015,41(3):99-100.
[5]罗宏伟.铁路站场设计系统研究与开发[J].铁道标准设计,2018,62(5):37-39,44.
[6]黄登.铁路站场计算机辅助设计系统CASD[J].科技创业月刊,2006(8):180-18.
[7]王焕栋,李海鹰,苗建瑞,等.铁路站场平面辅助设计系统的设计与开发[J].铁道标准设计,2014,58(12):51-55.
[8]蒲浩,严基团,李伟,等.面向铁路站场平面数字化设计系统的本体建模研究[J].铁道科学与工程报,2018,15(1):220-225.
[9]邓鹏,胡健,罗孝平,等.俄罗斯莫喀高铁项目站场设计特点及案例分析[J].铁道标准设计,2018,62(9):23-27.
[10]王省茜.跨座式单轨道岔技术分析[J].中国铁路,2007(8):67-69.
[11]张美玲,罗永坤,赵伟,等.跨座式PC轨道梁支座接触应力研究[J].铁道标准设计,2018,62(9):94-99.
[12]李雅红,张建东,雷慧锋,等.枢轴型道岔结构:CN204919230U[P].2015-12-30.
[13]朱志国,叶怀珍.铁路站场计算机辅助设计系统—咽喉区优化设计[J].西南交通大学学报,1995,30(2):194-199.
[14]T/CAMET 04001—2018轻型跨座式单轨交通设计导则[S].
[15]李海鹰,张超.铁路站场及枢纽[M].北京:中国铁道出版社,2011.