地铁线路纵断面调坡上下限线法及其应用
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摘要
为提高地铁线路纵断面精调效率,避免调坡后出现相邻区段坡段超限,利用上下限线法,建立轨面线允许上下浮动的上下限线范围进行辅助调坡,协同调整变坡点和竖曲线半径与上下限线关系进行纵断面优化,并应用于福州市轨道交通2号线隧道纵断面掘进偏移事故中。结果表明:1)采用上下限线法可以快速判断盾构掘进是否竖向超限,并方便快速确定调坡方案,避免多次调坡反复验算问题;2)采用上下限线法可以避免对已实施段盾构隧道的调坡超限;3)上下限线法成功应用在福州市轨道交通2号线隧道偏移事故中,采用该方法能在短时间内找出指导后续推进的调整方案,避免盾构停机造成的工程风险。
In order to improve the accurate adjustment efficiency of longitudinal profile of metro line and avoid slope ultralimit of adjacent section after adjustment,the upper and lower limit line method is studied. The rail surface line,whose floating range of upper and lower limit lines is allowable,is established to carry out auxiliary slope adjustment;the longitudinal profile of metro line is optimized by synergistically adjusting the relationship among slope change point,vertical curve radius and upper and lower limit lines; and the method is applied to adjust the slope of longitudinal profile of Fuzhou Metro Line No. 2. The study results show that:(1) The method mentioned above can quickly judge whether the vertical line is transfinite or not during shield tunneling,determine the slope adjustment scheme and avoid repeated slope adjustment and checking.(2) The method can avoid slope adjustment ultralimit occurs in shield-bored section.(3) The successful application of the method to Fuzhou Metro Line No. 2 has shortened the adjustment scheme time and avoided shield stop risks.
In order to improve the accurate adjustment efficiency of longitudinal profile of metro line and avoid slope ultralimit of adjacent section after adjustment,the upper and lower limit line method is studied. The rail surface line,whose floating range of upper and lower limit lines is allowable,is established to carry out auxiliary slope adjustment;the longitudinal profile of metro line is optimized by synergistically adjusting the relationship among slope change point,vertical curve radius and upper and lower limit lines; and the method is applied to adjust the slope of longitudinal profile of Fuzhou Metro Line No. 2. The study results show that:(1) The method mentioned above can quickly judge whether the vertical line is transfinite or not during shield tunneling,determine the slope adjustment scheme and avoid repeated slope adjustment and checking.(2) The method can avoid slope adjustment ultralimit occurs in shield-bored section.(3) The successful application of the method to Fuzhou Metro Line No. 2 has shortened the adjustment scheme time and avoided shield stop risks.
引文
[1]叶霞飞,顾保南.轨道交通线路设计[M].上海:同济大学出版社,2010.YE Xiafei,GU Baonan.Route design of rail transit[M].Shanghai:Tongji University Press,2010.
[2]杜昊璇.城市轨道交通施工完成后的调线调坡设计研究[J].地下工程与隧道,2015(2):52.DU Haoxuan.Study of alignment and slope design of urban rail transit after completion[J].Underground Engineering and Tunnels,2015(2):52.
[3]李建斌.圆形地铁隧道调线调坡设计研究[J].铁道标准设计,2015(3):90.LI Jianbin.Research on fine-tuning of line and slope of circular metro tunnel[J].Railway Standard Design,2015(3):90.
[4]陈菊.城市轨道交通线路设计中的调线调坡技术研究[J].铁道标准设计,2014(3):25.CHEN Ju.Technical study of route alignment and gradient adjustment in route design of urban rail transit[J].Railway Standard Design,2014(3):25.
[5]李洪强.苏州轨道交通调线调坡技术研究[J].铁道建筑技术,2013(11):38.LI Hongqiang.Research on line and slope adjustment technology of Suzhou Rail Transit[J].Railway Construction Technology,2013(11):38.
[6]赵强.武汉2号线调线调坡设计研究[J].铁道工程学报,2013(10):100.ZHAO Qiang.Research on adjustments of track and gradient of Line 2 of Wuhan Metro[J].Journal of Railway Engineering Society,2013(10):100.
[7]郭俊义.调线调坡设计以及对线路设计的启示[J].都市快轨交通,2011,24(5):31.GUO Junyi.Inspiration for line design from adjusting alignments and grades[J].Urban Rapid Rail Transit,2011,24(5):31.
[8]蒋勇.城市轨道交通调线调坡测量中圆隧道横断面测量方法的探讨[J].城市勘测,2011(1):142.JIANG Yong.The methods of circle tunnels cross-section survey in the line and slope fine-tuning survey in urban rail transit[J].Urban Geotechnical Investigation&Surveying,2011(1):142.
[9]地铁限界标准:CJJ 960—2003[S].北京:中国计划出版社,2003.Standard of metro gauges:CJJ 960-2003[S].Beijing:China Planning Press,2003.
[10]地铁设计规范:GB 50157—2013[S].北京:中国建筑工业出版社,2013.Code for design of metro:GB 50157-2013[S].Beijing:China Architecture&Building Press,2013.
[11]司耀旺.地铁线路调线调坡设计探讨[J].现代城市轨道交通,2016(3):81.SI Yaowang.Discussion on design of metro track alignment and gradient rehabilitation[J].Modern Urban Transit,2016(3):81.
[12]孟凡铁.深圳地铁调线调坡技术研究[J].铁道标准设计,2004(3):54.MENG Fantie.Adjustment of route alignment and gradient of Shenzhen Metro[J].Raiway Standard Design,2004(3):54.
[2]杜昊璇.城市轨道交通施工完成后的调线调坡设计研究[J].地下工程与隧道,2015(2):52.DU Haoxuan.Study of alignment and slope design of urban rail transit after completion[J].Underground Engineering and Tunnels,2015(2):52.
[3]李建斌.圆形地铁隧道调线调坡设计研究[J].铁道标准设计,2015(3):90.LI Jianbin.Research on fine-tuning of line and slope of circular metro tunnel[J].Railway Standard Design,2015(3):90.
[4]陈菊.城市轨道交通线路设计中的调线调坡技术研究[J].铁道标准设计,2014(3):25.CHEN Ju.Technical study of route alignment and gradient adjustment in route design of urban rail transit[J].Railway Standard Design,2014(3):25.
[5]李洪强.苏州轨道交通调线调坡技术研究[J].铁道建筑技术,2013(11):38.LI Hongqiang.Research on line and slope adjustment technology of Suzhou Rail Transit[J].Railway Construction Technology,2013(11):38.
[6]赵强.武汉2号线调线调坡设计研究[J].铁道工程学报,2013(10):100.ZHAO Qiang.Research on adjustments of track and gradient of Line 2 of Wuhan Metro[J].Journal of Railway Engineering Society,2013(10):100.
[7]郭俊义.调线调坡设计以及对线路设计的启示[J].都市快轨交通,2011,24(5):31.GUO Junyi.Inspiration for line design from adjusting alignments and grades[J].Urban Rapid Rail Transit,2011,24(5):31.
[8]蒋勇.城市轨道交通调线调坡测量中圆隧道横断面测量方法的探讨[J].城市勘测,2011(1):142.JIANG Yong.The methods of circle tunnels cross-section survey in the line and slope fine-tuning survey in urban rail transit[J].Urban Geotechnical Investigation&Surveying,2011(1):142.
[9]地铁限界标准:CJJ 960—2003[S].北京:中国计划出版社,2003.Standard of metro gauges:CJJ 960-2003[S].Beijing:China Planning Press,2003.
[10]地铁设计规范:GB 50157—2013[S].北京:中国建筑工业出版社,2013.Code for design of metro:GB 50157-2013[S].Beijing:China Architecture&Building Press,2013.
[11]司耀旺.地铁线路调线调坡设计探讨[J].现代城市轨道交通,2016(3):81.SI Yaowang.Discussion on design of metro track alignment and gradient rehabilitation[J].Modern Urban Transit,2016(3):81.
[12]孟凡铁.深圳地铁调线调坡技术研究[J].铁道标准设计,2004(3):54.MENG Fantie.Adjustment of route alignment and gradient of Shenzhen Metro[J].Raiway Standard Design,2004(3):54.