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北京空中线缆住进“集体宿舍”(事件新闻)

2017-08-24 06:12:18   中国青年网

图为工作人员在大栅栏商业区樱桃斜街的胡同深处拆除电线杆。

CT扫描地下情况、管道铺设、线缆入地、路面恢复……近日,北京市东城区民旺南胡同全面启动架空线入地工程,数十根空中线缆将住进“集体宿舍”,这也是北京市首条背街小巷架空线入地。今年,东、西城核心区将有844条支路胡同实现架空线归入地下。

【胡同告别“空中蛛网”】

东城区民旺南胡同紧邻北京北二环,东西走向。在几百米长的胡同走一圈,记者发现这里立了二三十根各式电线杆,甚至还存留着“古老”的木质电线杆。抬头看去,粗细不一的各种架空线组成的“蜘蛛网”密密麻麻,既不美观,也存在诸多安全隐患。

“电话线、上网网线、有线电视线,什么都有,粗略估计一下,怎么也得有六七十根线在脑袋顶上飘着。”东城区“百街千巷”指挥部办公室副主任王涛说,这条胡同的架空线还不是最严重的,自己曾经见过一条胡同里,最多有150多条架空线飘在天上,涉及二三十家不同的运营商。

“这是东城区第一条背街小巷架空线入地,也是全北京市的第一条。”王涛介绍,之所以选择民旺南胡同作为首条试点,主要是因为这条胡同相对较宽,车不多,居民也不算多。后续将有六七十名施工人员同时在胡同中加班加点进行施工作业。

“今年要完成512条胡同架空线入地。”王涛表示,近期,北新桥、前门、崇外、东花市地区将有二三十条胡同内架空线入地陆续动工。下一步,整个东城区的17个街道将全面启动这一工程。

【“CT扫描”摸清地下情况】

“在架空线入地之前,先要对胡同进行一番‘CT扫描’。”作为施工方,歌华有线工程公司总经理王刚介绍,工人们要用仪器在胡同中进行物探,摸清地底下已经铺设好的管道在什么位置。比如燃气管线在哪儿,电力管线在哪儿,施工的时候,遇到有管线的地方,就要小心翼翼地绕开。

可能很多人认为,架空线入地先要“拔掉”原来的电线杆,再将通信、电力、路灯以及电车架空线入地。其实,这个过程恰恰和人们想象的相反。

架空线入地的第一关,就是挖沟。王刚表示,然后将提前备好的管道放入沟内,地上的光缆从半空中穿入地下的管道里,然后再将土覆盖在管道上。随后,将胡同道路路面恢复。最后,再将天上的架空线分段剪断,将电线杆拔除。只有在建好一条同路径的地下电缆线路之后,才对架空线路进行拆除,这样就能最大程度减少对市民生活的影响。

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