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发明公开
CN110485473A 一种预设可拆卸门洞的装配式可回收矩形工作井及其施工方法 有权 转让

一种预设可拆卸门洞的装配式可回收矩形工作井及其施工方法
摘要：
本发明涉及一种预设可拆卸门洞的装配式可回收矩形工作井的设计施工方法，包括如下步骤：（一）矩形工作井的功能需求设计；（二）支护桩施工；（三）预制冠梁安装；（四）临边防护施工；(五)土方开挖、挡土面板、内撑腰梁交替施工；（六）进入矩形工作井的爬梯安装；(七)矩形工作井封底；(八)洞门部位分节支护桩、挡土面板拆卸；即可完成预设可拆卸门洞的装配式可回收矩形工作井的施工；(九)井内作业完成后，回填过程中逆序逐步回收挡土面板、内撑腰梁、冠梁及支护桩等工作井构件。
摘要（英）：

The invention relates to a design and construction method of a fabricated recoverable rectangular working well with pre-formed detachable door openings. The design and construction method comprises the following steps that (1) functional demand design of the rectangular working well is conducted; (2) support piles are constructed; (3) a precast crown beam is mounted; (4) near-edge protection partsare constructed; (5) soil excavation, mounting of soil-retaining panels and mounting of internal bracing waist beam are alternately constructed; (6) a crawling ladder entering the rectangular workingwell is mounted; (7) the rectangular working well is subjected to bottom sealing; (8) the sectioned support piles and the soil-retaining panels at the door opening parts are detached, and thus construction of the fabricated recoverable rectangular working well with the pre-formed detachable door openings can be completed; and (9) after in-well operation is completed, working well members such asthe soil-retaining panels, the internal bracing waist beams, the crown beam and the support piles are recovered in inverted sequence step by step in the backfilling process.

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