市域轨道交通地下敷设方式的不利影响亟待引起重视  

Adverse Impacts of Suburban Line Underground Laying Method Appeal for Imperative Concerns

作　　者：顾保南[1] 叶霞飞[1] ZHANG Liman GU Baonan;YE Xiafei(College of Transportation Engineering,Tongji University)

机构地区：[1]同济大学交通运输工程学院 [2]不详

出　　处：《城市轨道交通研究》2021年第9期I0012-I0012,232,共2页Urban Mass Transit

摘　　要：近两年来,上海机场联络线、嘉闵线等线路相继开工建设,标志着上海的市域轨道交通线网开始建设。根据公开资料分析,国内市域轨道线路的地下敷设方式比例正在不断增大。如:上海机场联络线正线全长68.6 km,其中地下段达56.7 km,地下段占总长的82.6%;嘉闵线正线全长44.04 km,其中地下段为41.36 km,地下段占总长的93.9%。这两条市域线位于上海外环高速公路以外的郊区,沿线既有建筑密度很低。然而,在功能上类似于市郊轨道交通线路的东京私铁,却大多采用地上敷设方式(高架或地面),其地下线占比通常都小于10%。上海这两条市域线与东京私铁线路在敷设方式上为何有如此大的差异,值得我们思考。The construction of Shanghai Airport Link Line and Jiamin Line in recent years marks the establishment of Shanghai urban rail transit line network.According to public documents,the proportion of underground laying method in domestic urban rail transit lines is growing.For example:Shanghai Airport Link Line mainline has whole length of 68.6 km,of which 56.7 km are underground,e-qualing to 82.6%;Jiamin Line mainline has whole length of 44.04 km,of which 41.36 km are underground,equaling to 93.9%・These two suburban lines are located in suburban areas outside the Shanghai Outer Ring Expressway,and the density of existing buildings along the lines are low.While their functionality resembles suburban rail transit lines of Tokyo Metro,it is mostly above-ground laying method(elevated or ground surface)in Tokyo Metro,and underground section takes less than 10%.The significant difference in laying method choice between the two Shanghai suburban lines and Tokyo Metro lines appeals for reflection.

关 键 词：地下敷设 轨道线路 敷设方式 私铁 既有建筑 联络线 市域轨道交通 市域线 

分 类 号：U231.3[交通运输工程—道路与铁道工程]