综合管廊给水管道固定支墩精细化施工技术  

Fine Construction of Fixed Support Pier for Water Supply Pipe of Underground Utility Tunnel

作　　者：陈博[1] 石立国[1] 乔稳超 李海龙[1] CHEN Bo;SHI Liguo;QIAO Wenchao;LI Hailong(China Construction Second Engineering Bureau Ltd, , Baiting 100160,China)

机构地区：[1]中国建筑第二工程局有限公司,北京100160

出　　处：《施工技术》2017年第21期29-32,共4页Construction Technology

基　　金：中国建筑第二工程局有限公司课题立项:城镇综合管廊关键施工技术研究(CSCEC2B-2015-K-03)

摘　　要：综合管廊内管道安装经常使用钢筋混凝土支墩,对管道进行支撑和固定。为避免管廊固定管道的支墩根部受到较大弯矩发生破坏,避免热力管道存在较大的热桥效应发生热能损失,实现管道固定支墩的精细化施工。以六盘水市地下综合管廊工程为例,通过对固定支墩的间距、混凝土材料等因素优化设计,支墩施工工艺及精细化控制等要素进行研究,实现了六盘水地下综合管廊支墩安装管道后受纵向推力较小,混凝土成型质量较好,施工进度快、精度高,经济效益显著。The reinforced concrete piers are often used to support and stabilize the pipe in utility tunnel. In order to avoid damage by large bending moment of pier root, to avoid heat loss occurs because of large thermal bridge effect, the fine construction of pipeline fixed piers is important. Taking Liupanshui utility tunnel project as an example, by optimizing the design factors of fixed pier spacing, concrete materials, as well as the study on pier construction and fine control, it realizes the longitudinal thrust is smaller after installing pipelines, the quality of the concrete forming is better, the construction progress is fast, the accuracy is high, and so on.

关 键 词：地下工程 综合管廊 固定支墩 优化 施工技术 

分 类 号：TU990.3[建筑科学—市政工程]