Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bidirectional incremental launching construction method for U-shaped channel underneath passing subway viaduct
The invention relates to a bidirectional incremental launching construction method for a U-shaped channel underneath passing a subway viaduct. The bidirectional incremental launching construction method comprises the following steps that (1) foundation reinforcement is conducted on an incremental launching in-place area; (2) working pits are constructed in the two sides of a bridge; (3) a sliding plate, a back and a back beam are manufactured in the working pit; (4) a U-shaped channel of a reinforced concrete structure is prefabricated, and the U-shaped channel is arranged on the sliding plate; (5) pushing equipment is arranged between the U-shaped channel and the back beam; (6) the U-shaped channel is pushed forwards through a small-step-pitch retreat excavation pushing method; (7) after pushing in place each time, fertilizer grooves in the two sides of the U-shaped channel are backfilled with graded broken stones in time; (8), the two U-shaped channels are oppositely pushed in the two opposite directions, and the two U-shaped channels are connected to form a through channel on the portion, not below the bridge, in the middle. According to the bidirectional incremental launching construction method for the U-shaped channel underneath passing the subway viaduct, normal traffic of the subway viaduct can be guaranteed, the influence on the subway viaduct and the surrounding environment is reduced, and meanwhile the subway viaduct can adapt to environmental factors such as height limiting and width limiting.
本发明涉及一种下穿地铁高架桥梁的U型通道双向顶推施工方法，包括以下步骤：1）对顶推就位区进行地基加固；2）在桥梁两侧施作工作坑；3）在工作坑内制作滑板、后背和后背梁；4）预制钢筋混凝土结构的U型通道，并使该U型通道置于所述滑板上；5）将顶推设备布置于所述U型通道和后背梁之间；6）采用小歩距退挖顶推法将U型通道向前顶推；7）每次顶推就位后，所述U型通道两侧的肥槽及时回填级配碎石；8）在相对的两个方向将两个所述U型通道相向顶推，并在中间非桥梁下方部分，将两个所述U型通道连接，形成贯通的通道。本发明可保证地铁高架的正常交通，并减少对地铁高架桥梁和周边环境的影响，同时，能够适应限高限宽等环境因素。
Bidirectional incremental launching construction method for U-shaped channel underneath passing subway viaduct
The invention relates to a bidirectional incremental launching construction method for a U-shaped channel underneath passing a subway viaduct. The bidirectional incremental launching construction method comprises the following steps that (1) foundation reinforcement is conducted on an incremental launching in-place area; (2) working pits are constructed in the two sides of a bridge; (3) a sliding plate, a back and a back beam are manufactured in the working pit; (4) a U-shaped channel of a reinforced concrete structure is prefabricated, and the U-shaped channel is arranged on the sliding plate; (5) pushing equipment is arranged between the U-shaped channel and the back beam; (6) the U-shaped channel is pushed forwards through a small-step-pitch retreat excavation pushing method; (7) after pushing in place each time, fertilizer grooves in the two sides of the U-shaped channel are backfilled with graded broken stones in time; (8), the two U-shaped channels are oppositely pushed in the two opposite directions, and the two U-shaped channels are connected to form a through channel on the portion, not below the bridge, in the middle. According to the bidirectional incremental launching construction method for the U-shaped channel underneath passing the subway viaduct, normal traffic of the subway viaduct can be guaranteed, the influence on the subway viaduct and the surrounding environment is reduced, and meanwhile the subway viaduct can adapt to environmental factors such as height limiting and width limiting.
本发明涉及一种下穿地铁高架桥梁的U型通道双向顶推施工方法，包括以下步骤：1）对顶推就位区进行地基加固；2）在桥梁两侧施作工作坑；3）在工作坑内制作滑板、后背和后背梁；4）预制钢筋混凝土结构的U型通道，并使该U型通道置于所述滑板上；5）将顶推设备布置于所述U型通道和后背梁之间；6）采用小歩距退挖顶推法将U型通道向前顶推；7）每次顶推就位后，所述U型通道两侧的肥槽及时回填级配碎石；8）在相对的两个方向将两个所述U型通道相向顶推，并在中间非桥梁下方部分，将两个所述U型通道连接，形成贯通的通道。本发明可保证地铁高架的正常交通，并减少对地铁高架桥梁和周边环境的影响，同时，能够适应限高限宽等环境因素。
Bidirectional incremental launching construction method for U-shaped channel underneath passing subway viaduct
下穿地铁高架桥梁的U型通道双向顶推施工方法
LAI SULING (Autor:in) / FANG WEI (Autor:in) / XU QINGPING (Autor:in) / LIU BIN (Autor:in) / MA JUAN (Autor:in) / ZHOU XIAOFENG (Autor:in) / SUN DAOJUN (Autor:in) / ZOU WENXIANG (Autor:in) / YAO YIFAN (Autor:in) / YIN JUNWEI (Autor:in)
05.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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