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滇中新区投建“里子工程”

2017-09-05 09:17:11   中国青年网

本报美编 张维麟 画

背景

《云南省人民政府关于加快推进全省城市地下综合管廊建设的实施意见》指出,加快推动昆明市、曲靖市、保山市和滇中新区等在建的地下综合管廊建设,争取早日实现运营,发挥以点带面的示范作用,为推进全省地下综合管廊建设提供技术指导。

话题

滇中新区高度重视地下综合管廊建设。目前,新区在建的哨关路、嵩昆路、空港大道中段3条重点道路的综合管廊共有26.12公里,总造价约为12.39亿元。在新区建设亟须资金投入的情况下,为何舍得大手笔地投入到“里子工程”的建设?

建设方案 综合管廊为封闭式双舱结构

“这座桥从4幅增加到5幅,多出来的这一幅,就是专门用于地下综合管廊建设。”在哨关路花庄河大桥项目工地,建设公司工程管理部负责人指着正在架设的第五幅桥说。

哨关路是未来滇中新区核心区的重要主干道,东西走向,起于与新昆嵩高速相交的小哨互通,止于与小龙高速相交的哨关互通,主道为双向8车道,辅道为双向4车道,配套建设综合管廊。

在花庄河大桥项目工地记者看到,综合管廊在路旁单独建造,钢筋混凝土材质,为封闭式双舱结构,一个水舱,一个电舱。大舱高2.9米、宽2.8米;小舱高2.9米,宽2.3米。管廊内纳入的管线包括给水管线、中水管线、电力管线、通信管线以及预留管位等。管廊沿线将设投料口、参观口、通信管线引出段、电力管线引出段、防火门、集水坑等。

“正常情况下,综合管廊就建在路边的地下。但哨关路的综合管廊,有一段需要下穿铁路,还有一段要架桥过河,工程的复杂程度将影响造价。” 该负责人介绍道。

成本核算 建1米综合管廊约需4.74万元

据云南滇中哨关路投资建设有限公司测算,哨关路建设里程13.54公里,建安造价约28.74亿元。其中,将建综合管廊10.6公里,造价约5.48亿元,约占建安造价的19%。

哨关路的综合管廊造价占比并不是最高的。据测算,嵩昆路一期建设里程8.17公里,建安造价约13.19亿元。其中,将建综合管廊8.13公里,造价约3.11亿元,约占建安造价的23.58%。空港大道中段(文林路至机场北高速)工程建安投资总额12.9亿元。其中综合管廊全长约7.39公里,造价约3.80亿元,约占工程建安费总额的29.5%。

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