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A platform for research: civil engineering, architecture and urbanism
Frame bridge jacking construction method
The invention discloses a frame bridge jacking construction method. The construction method is characterized in that the construction procedure of parallel construction is adopted for construction of an approach U-shaped groove and a prefabricated jacking frame, the approach U-shaped groove adjacent to the jacking frame serves as a back of jacking construction, and a reinforced concrete back is arranged at the front end of the approach U-shaped groove; the reinforced concrete back, the frame bridge working bottom plate and the concrete working bottom plate of the approach U-shaped groove form a whole during pouring, and the reinforced concrete back is anchored under a cushion layer; the number of sections of the U-shaped groove of the required approach way is obtained through theoretical calculation, and the objective of providing jacking counter force is achieved by adding a counter weight in the U-shaped groove of the approach way; and a post-cast strip with the width of 1 m is arranged between the two sections of approach U-shaped grooves in the rear portion, a water stop belt is embedded after jacking of the frame is completed, and construction of the post-cast strip and the settlement joint is completed. The U-shaped groove of the approach way is used as a jacking back, the number of temporary projects is greatly reduced, project investment is reduced, meanwhile, the U-shaped groove of the approach way and the prefabricated jacking frame are constructed in parallel, and the construction period is shortened.
本发明公开了一种框架桥顶进施工方法。其特征是：引道U型槽与预制顶进框架施工采用平行施工的施工工序，将与顶进框架相邻的引道U型槽作为顶进施工的后背，并在引道U型槽前端设置钢筋混凝土后背，钢筋混凝土后背与框架桥工作底板及引道U型槽的混凝土工作底板浇筑时形成整体，所述钢筋混凝土后背锚入垫层下；所需引道U型槽节数通过理论计算得出并通过在引道U型槽内增加配重达到提供顶进反力的目的；在后部两节引道U型槽之间设置1m宽的后浇带，待框架顶进完成后埋设止水带，完成后浇带及沉降缝施工。本发明利用引道U型槽作为顶进后背，大大减少了临时工程数量，降低了工程投资，同时引道U型槽与预制顶进框架施工为平行施工，缩短了施工工期。
Frame bridge jacking construction method
The invention discloses a frame bridge jacking construction method. The construction method is characterized in that the construction procedure of parallel construction is adopted for construction of an approach U-shaped groove and a prefabricated jacking frame, the approach U-shaped groove adjacent to the jacking frame serves as a back of jacking construction, and a reinforced concrete back is arranged at the front end of the approach U-shaped groove; the reinforced concrete back, the frame bridge working bottom plate and the concrete working bottom plate of the approach U-shaped groove form a whole during pouring, and the reinforced concrete back is anchored under a cushion layer; the number of sections of the U-shaped groove of the required approach way is obtained through theoretical calculation, and the objective of providing jacking counter force is achieved by adding a counter weight in the U-shaped groove of the approach way; and a post-cast strip with the width of 1 m is arranged between the two sections of approach U-shaped grooves in the rear portion, a water stop belt is embedded after jacking of the frame is completed, and construction of the post-cast strip and the settlement joint is completed. The U-shaped groove of the approach way is used as a jacking back, the number of temporary projects is greatly reduced, project investment is reduced, meanwhile, the U-shaped groove of the approach way and the prefabricated jacking frame are constructed in parallel, and the construction period is shortened.
本发明公开了一种框架桥顶进施工方法。其特征是：引道U型槽与预制顶进框架施工采用平行施工的施工工序，将与顶进框架相邻的引道U型槽作为顶进施工的后背，并在引道U型槽前端设置钢筋混凝土后背，钢筋混凝土后背与框架桥工作底板及引道U型槽的混凝土工作底板浇筑时形成整体，所述钢筋混凝土后背锚入垫层下；所需引道U型槽节数通过理论计算得出并通过在引道U型槽内增加配重达到提供顶进反力的目的；在后部两节引道U型槽之间设置1m宽的后浇带，待框架顶进完成后埋设止水带，完成后浇带及沉降缝施工。本发明利用引道U型槽作为顶进后背，大大减少了临时工程数量，降低了工程投资，同时引道U型槽与预制顶进框架施工为平行施工，缩短了施工工期。
Frame bridge jacking construction method
一种框架桥顶进施工方法
JING YONGJUN (author) / YU LIMIN (author) / WANG JISHAN (author) / LIU CHANGZHENG (author) / WANG XINDE (author) / LU HONGBIN (author) / JIN ZENGLU (author) / ZOU PENG (author) / XUE HAIRU (author)
2022-01-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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