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“最难啃的”美术馆站主体完工

2017-09-05 04:16:41   中国青年网

本报记者 曹政

预计到明年年底,开工建设已有10年的地铁8号线二期,将实现所有车站全部通车。

在现在的北京地铁运营版图上,8号线最南端是南锣鼓巷站。但根据规划,早在2008年就宣布开工的8号线二期在南锣鼓巷站以南还有一站尚未开通——中国美术馆站。由于拆迁难、管线复杂、涉及周边百年建筑保护等原因,该站被称为“最难啃的硬骨头”。记者昨天从施工方中国铁建十六局获悉,中国美术馆站主体结构已经完工,并顺利通过结构验收,预计明年年底该站实现开通。

8号线二期终于“收尾”

东四大街与王府井大街交会路口,地下25米深的中国美术馆地铁站被竖分成两半。被围挡住的东侧,甚至连地砖都已铺好,每隔几分钟,8号线列车飞驰而过;但西侧,主体结构刚刚完工,还是一片深灰色。

中国美术馆站是8号线二期的最后一座未开通车站。8号线二期是在一期奥运支线的基础上南北各自延伸而成,早在奥运支线开通前的2007年底就已宣布开工。二期全长只有十几公里,却分了好几次开通运行,最早的北段在2011年底就已经开通。但南段由于主要处在老城区,施工、拆迁等困难较大,进展较慢:北土城站至鼓楼大街站一段(除安德里北街站外)在2012年底开通,鼓楼大街站到南锣鼓巷站在2013年底开通,安德里北街站在2015年底开通,如今只剩南锣鼓巷站以南的中国美术馆站还在建设。

由于拆迁等多方面原因,中国美术馆站虽然在2009年就已经招标,但在2011年才实质开工。当年开建的,还只是车站的东侧。

南下的地铁8号线列车,过了南锣鼓巷站需要继续向南才能折返。因此,中国美术馆站东侧必须率先建成,供运营中的列车调头使用。2013年,车站东侧终于建成,赶上了年底8号线二期南段大部分车站的开通。

施工方中铁十六局透露,上月底,8号线二期中国美术馆站及站后折返线工程顺利通过主体结构验收,这也标志着8号线二期南段上“最难啃的硬骨头”已经完全突破。

东西两侧站台仅重叠56米

考虑到运营的安全,中国美术馆站东西两侧站台被隔离开。但实际上,两侧站台并非对称布局,率先完工的东侧站台在车站的北部,而刚刚完成主体结构的西侧站台则在车站的南部,两侧站台只在中间重叠56米。

区别于一般的地下车站,中国美术馆站虽轨行区在两侧,站台却错置布局。这也是北京地铁第一个站台错置的地铁站。从数字上看,中国美术馆站长度达到286米,比普通的地铁车站长出几十米。

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