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3种管道进入地下综合管廊入廊的优劣性

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3种管道进入地下综合管廊入廊的优劣性

发布日期:2018-10-25 作者: 点击:

    综合管廊中是否纳入某种管线,应根据经济社会发展状况和地质、地貌、水文等自然条件,经过技术、经济、安全以及维护管理等因素综合考虑确定。通过对国内近年来22个区域管廊纳入管线频次统计分析,给水、电力和通信管道都作为纳入综合管廊的基本管线,有条件有需求的区域纳入了压力流的供冷、供热、再生水和燃气管道,其中供热管线出现9次,再生水和燃气管道出现6次,而重力流污水管和雨水管没有比较成熟的案例。由于天然气管的安全问题,国内天然气管纳入综合管廊经验较少。天然气管线抢修次数相对其他市政管线依然较高,仅次于给水管。天然气管线发生的事故大多是其他工程施工对其破坏而造成的,因自身原因发生事故很少,纳入管廊必要性较大。雨水、污水管等重力流管线与其它管线相比,埋深较深,且这类管线所要求的纵坡很难与综合管廊协调,较易引起造价的上升,并且相对而言,雨、污水管线开挖的频率较低,因此这类管线纳入综合管廊的案例较少。

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关键词:管廊

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