Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Waterproof structure for horizontal construction joint of side wall in cover-excavation top-down method
The invention belongs to the field of building construction, and particularly relates to a waterproof structure for a horizontal construction joint of a side wall in a cover-excavation top-down method, which comprises a molded concrete wall and a brake shoulder concrete wall, the molded concrete wall is positioned below the brake shoulder concrete wall, and an upper-layer horizontal construction joint is arranged between the molded concrete wall and the brake shoulder concrete wall; a groove is reserved in the bottom of the brake shoulder concrete wall, a trapezoidal water stop rubber strip is placed in the groove, and a grouting pipe is embedded in the top of the molded concrete wall. The groove is filled with PJ400 water-swelling water-stopping glue which protrudes out of the concrete surface by not less than 5 mm, full-section grouting pipes of 8-12 mm are symmetrically arranged on the two sides of the groove, the outer side of the side wall is guided by not less than 500 mm through a three-way pipe, grouting is conducted through a pressure type grouting machine after post-pouring side wall concrete construction is completed and the design strength is achieved, and the waterproof effect of a construction joint is ensured.
本发明属于建筑施工领域，尤其是一种盖挖逆作法侧墙水平施工缝的防水结构，包括模筑混凝土墙和刹肩混凝土墙，所述模筑混凝土墙位于刹肩混凝土墙的下方，且模筑混凝土墙和刹肩混凝土墙之间设置有上层水平施工缝，所述刹肩混凝土墙的底部预留有凹槽，凹槽内放置有梯形止水胶条，所述模筑混凝土墙的顶部预埋有注浆管。本发明凹槽内注满PJ400遇水膨胀止水胶并突出混凝土面不低于5mm，在凹槽两侧对称设置8‑12mm全断面注浆管，并采用三通管引致侧墙外侧不小于500mm，待后浇筑侧墙混凝土施工完毕并达到设计强度后采用压力式注浆机进行注浆，确保施工缝防水效果。
Waterproof structure for horizontal construction joint of side wall in cover-excavation top-down method
The invention belongs to the field of building construction, and particularly relates to a waterproof structure for a horizontal construction joint of a side wall in a cover-excavation top-down method, which comprises a molded concrete wall and a brake shoulder concrete wall, the molded concrete wall is positioned below the brake shoulder concrete wall, and an upper-layer horizontal construction joint is arranged between the molded concrete wall and the brake shoulder concrete wall; a groove is reserved in the bottom of the brake shoulder concrete wall, a trapezoidal water stop rubber strip is placed in the groove, and a grouting pipe is embedded in the top of the molded concrete wall. The groove is filled with PJ400 water-swelling water-stopping glue which protrudes out of the concrete surface by not less than 5 mm, full-section grouting pipes of 8-12 mm are symmetrically arranged on the two sides of the groove, the outer side of the side wall is guided by not less than 500 mm through a three-way pipe, grouting is conducted through a pressure type grouting machine after post-pouring side wall concrete construction is completed and the design strength is achieved, and the waterproof effect of a construction joint is ensured.
本发明属于建筑施工领域，尤其是一种盖挖逆作法侧墙水平施工缝的防水结构，包括模筑混凝土墙和刹肩混凝土墙，所述模筑混凝土墙位于刹肩混凝土墙的下方，且模筑混凝土墙和刹肩混凝土墙之间设置有上层水平施工缝，所述刹肩混凝土墙的底部预留有凹槽，凹槽内放置有梯形止水胶条，所述模筑混凝土墙的顶部预埋有注浆管。本发明凹槽内注满PJ400遇水膨胀止水胶并突出混凝土面不低于5mm，在凹槽两侧对称设置8‑12mm全断面注浆管，并采用三通管引致侧墙外侧不小于500mm，待后浇筑侧墙混凝土施工完毕并达到设计强度后采用压力式注浆机进行注浆，确保施工缝防水效果。
Waterproof structure for horizontal construction joint of side wall in cover-excavation top-down method
一种盖挖逆作法侧墙水平施工缝的防水结构
MAO WEI (Autor:in) / LIU ZHENDONG (Autor:in)
12.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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