Construction method for pipe gallery deformation joint: Fid-Bau Portal

Construction method for pipe gallery deformation joint

ZHANG YICHI / GU GUOPING / LI SHAOWEI / GUO QING

The invention discloses a construction method for a pipe gallery deformation joint, and belongs to the technical field of underground pipe gallery waterproofing. The construction method comprises thesteps that after a pipe gallery bottom plate is constructed, pipe gallery reinforcing steel bars on the two sides of the pipe gallery deformation joint are bound, a back-sticking type rubber water stop belt is placed at the position, where the deformation joint is located, on the bottom plate, margins are reserved at the two ends of the back-sticking type rubber water stop belt, and a tooth opening in the back-sticking type rubber water stop belt faces upwards; a rectangular steel bar inner supporting ring is placed and fixed; the back-sticking type rubber water stop belt is closed along the rectangular steel bar inner supporting ring to form a rectangular back-sticking type rubber water stop belt structure, and the rectangular steel bar inner supporting ring is buckled at the tooth opening in the rectangular back-sticking type rubber water stop belt structure; and a form is arranged, concrete is poured into the positions, on the two sides of a joint filling plate, on a pipe gallery main body structure, and after the concrete reaches the form removing strength, the form is removed. According to the construction method, an underground pipe gallery has a good waterproof effect, the deflection problem is avoided, and the construction convenience is improved.

本发明公开了一种管廊变形缝的施工方法，属于地下管廊防水技术领域。所述施工方法包括：管廊底板施工完毕后，绑扎管廊变形缝两侧的管廊钢筋，将背贴式橡胶止水带放置于变形缝处的底板上，背贴式橡胶止水带两端均留有余量，背贴式橡胶止水带的齿口朝上；安放并固定矩形钢筋内撑环；将背贴式橡胶止水带沿矩形钢筋内撑环闭合，形成矩形背贴式橡胶止水结构，使矩形钢筋内撑环卡扣在矩形背贴式橡胶止水结构的齿口内；安装模板，分别浇筑填缝板两侧的管廊主体结构的混凝土，待混凝土达到拆模强度后，拆除模板。该施工方法使地下管廊具有较好的防水效果，避免了偏角问题，而且提高了施工便利性。

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