城市轨道交通车辆段和停车场轨道工程常见专业接口探讨
宫寅
Discussion on Common Interfaces Between Professions with Urban Rail Transit Vehicle Depot and Parking Lot Track Engineering
GONG Yin
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作者信息:中铁上海设计院集团有限公司, 200070, 上海
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Affiliation:China Railway Shanghai Design Institute Group Co., Ltd., 200070, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.06.027
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中图分类号/CLCN:U279.1;U213
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栏目/Col:应用技术
摘要:
对目前我国城市轨道交通车辆段和停车场轨道工程与工艺、机电、建筑及结构、站场及路桥、环评等专业的接口存在的问题进行了总结，并给出优化建议。建议如下：柱式检查坑立柱内壁距离宜设计为1.1 m，需核实工艺专业对不同类型道床长度、钢轨长度、端洗轨轨距、车挡的要求；避免漏埋过轨管线、漏设过轨沟槽、绝缘节设置位置不正确而导致后期整改；采用钢轨接头处立柱加密的设计方案时，需结合扣件选型合理确定加密处扣件间距，避免接头处扣件与钢轨接头夹板冲突；库前截水沟宜采用钢筋混凝土结构，尽量减小截水沟宽度以控制该处的扣件间距，或降低截水沟盖板标高、采用道口板覆盖的方案；为提高立柱的施工质量，可由轨道专业一次施工完成立柱，或采用扣件下方增设铁垫板、铁垫板部分埋入立柱的方案，以及预制立柱方案；站场排水沟和电缆井应避免被道砟覆盖；需做好整体道床-碎石道床过渡段的工后沉降控制；段场上盖开发时需根据上盖开发业态进行环境影响预测及评价，确保轨道减振降噪措施经济合理。
Abstracts:
The problems currently existing in the interfaces between urban rail transit depot and parking lot (hereinafter referred to as ′depot′) track engineering are summarized, optimization suggestions for professions include technical process, electromechanics, buildings and structures, stations and road bridges, environment evaluation proposed. The suggestions include: the column inner wall distance of the column inspection pit should be 1.1 m and requirements of technical process profession on different types of track bed length, rail length, washing rail gauge and bumper should be verified; problems that cause additional reconstruction such as missing rail-crossing pipelines pipelines and rail-crossing troughs, incorrect position of insulation joints should be avoid-ed; when adopting the design scheme of densifying the columns at the rail joint, it is necessary to reasonably determine the fastener spacing at the densified rail joint based on the fastener type selection to avoid contradiction between joint fasteners and rail joint clamp plate; the garage-front intercepting ditch should adopt a reinforced concrete structure, minimizing the width of the intercepting ditch as much as possible to control fastener spacing at this location, or reduce the elevation of the intercepting ditch cover plate and use a crossing plate cover plan; to improve the construction quality of the column, column construction can be completed by track profession in one time, or adopt the plan of adding an iron pad below the fastener with the pad partially embedded into the column, or a plan of column prefabrication; the station drainage ditch and cable well should avoid being covered by ballast; it is necessary to control the post-construction settlement of whole track bed to ballast track bed transition segment; when developing depot overhead property, it is necessary to predict and evaluate the environmental impact based on the overhead property business modes, to ensure that the track vibration reduction and noise reduction measures are economically reasonable.
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