装配式顶管工程矩形工作井建造技术研究.pdf

2011年8月上 施工技术 第40卷第346期 CONSTRUCTION TECHNOLOGY 79 装配式顶管工程矩形工作井建造技术研究 段凯元，郭正兴 (东南大学土木工程学院，江苏南京210096) [摘要]为提高顶管工程现场的施工效率，研发出了预制装配式顶管工程矩形工作井，并进行了合理的建造施工. 以采用装配式工作井的顶管工程为背景，介绍了工作井的结构构造及建造工艺.，在井片预制、现场拼装、预应力筋 连接三个关键的施工环节，对建造方法和工艺进行了详细说明和分析.通过工程的顺利实施，证明了该建造方法 是安全可行的. [关键词]顶管工程；预制装配式矩形工作井；施工方法；建造技术 [中图分类号]TU753.64 [文献标识码]A [文章编号]1002-8498(2011)15-0079-03 Research on Construction Technology of Prefabricated Rectangular Open Caisson Working Well During Pipe Jacking Duan Kaiyuan Guo Zhengxing School of Civil Engineering Southeast University Nanjing Jiangsu 210096 China) Abstract:To increase construction efficiency of pipe jacking project the research of prefabricated rectangular open caisson working well during pipe jacking is carried out.The structure is rationally constructed.In the background of the first prefabricated open caisson working well in pipe jacking project the structure and building craft are introduced.In the key parts of construction-prefabricating working well installation in situation prestressed reinforcement connection building craft of the prefabricating working well are particularly explained and analysed.By the project been implemented the construction methods are proved to be safety and reliable. Key words:pipe jacking project;prefabricated rectangular open caisson working well;construction method;building craft 南京市雨污分流工程通过在地面下铺设大管径应用预制装配技术，研发出应用于市政雨污分流工 管道，达到把雨水和污水分流治理的目的.由于主 程中顶管工程的预制矩形工作井.这是国内首次采 线管道大多位于主干线道路地面以下，实施大面积 用预制工作井进行地下管道的顶进施工.采用预制 开挖施工必然对交通通行造成较...