真空辅助一次压注顶升管内混凝土施工技术

Construction Technology of Vacuum Assisted One-Time Injection of Concrete in the Jacking Pipe

以某市某度假区新建设的桥梁工程钢管混凝土拱桥的结构形式为例,详尽地介绍了真空辅助一次压注顶升施工技术的要点和难点,对管内混凝土采用真空辅助一次压注顶升具体需要控制的流程进行了讨论,旨在提高混凝土的质量,保证工程的顺利施工。

This article takes the structural form o fa newly-constructed concrete-filled steel tubular arch bridge in a resort in a certaincity as an example, introduces the key points and difficulties of the construction technology of the vacuum assisted one-time injectionand jacking in detail, then discusses the specific control procedures needed to be control, aiming at improvingthe quality of the concrete and ensure the smooth construction o fthe project.