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A platform for research: civil engineering, architecture and urbanism
Fabricated retaining device for final joint of immersed tunnel and dry-wet alternate construction method of fabricated retaining device
The invention belongs to the technical field of immersed tube tunnel engineering, and relates to an immersed tube tunnel final joint assembly type retaining device and a dry-wet alternate construction method thereof. The retaining piece is poured at the underground diaphragm wall and is arranged opposite to the bracket; a throwing rib is reserved at the top of the retaining piece, and the distance L from the top of the throwing rib to the horizontal plane meets the condition that L is larger than or equal to H-h + 1, so that the final joint is undocked and installed when the final joint is constructed; the reinforcement cage comprises a first cage body and a second cage body which are connected into a whole; the first cage body is arranged between the retaining piece and the bracket and is used for forming a force transmission part for connecting the underground diaphragm wall and the final joint with poured concrete; the second cage body is positioned above the retaining piece and is used for forming a retaining part connected with the retaining piece together with poured concrete; and a positioning piece is arranged at the bottom of the second cage body and is matched with the throwing rib. The underwater construction time is shortened, the construction process is simplified, the construction difficulty is reduced, and rapid and convenient construction of the final joint is achieved.
本发明属于沉管隧道工程技术领域，涉及一种沉管隧道最终接头装配式止退装置及其干湿交替施工方法，装置包括：牛腿，预制于最终接头侧面；止退件，浇筑于地下连续墙处，与牛腿相对设置；止退件的顶部预留甩筋，甩筋顶部至水平面的距离L满足条件L≥H‑h+l，以在施工最终接头时使最终接头出坞安装；钢筋笼，包括连接为一体的第一笼体和第二笼体；第一笼体设置于止退件与牛腿之间，用于与浇筑混凝土形成连接地下连续墙和最终接头的传力部；第二笼体位于止退件上方，用于与浇筑混凝土形成连接止退件的止退部；第二笼体底部设有定位件，定位件与甩筋配合。本发明减少水下施工时间，简化施工工艺，降低施工难度，实现最终接头的快速、方便施工。
Fabricated retaining device for final joint of immersed tunnel and dry-wet alternate construction method of fabricated retaining device
The invention belongs to the technical field of immersed tube tunnel engineering, and relates to an immersed tube tunnel final joint assembly type retaining device and a dry-wet alternate construction method thereof. The retaining piece is poured at the underground diaphragm wall and is arranged opposite to the bracket; a throwing rib is reserved at the top of the retaining piece, and the distance L from the top of the throwing rib to the horizontal plane meets the condition that L is larger than or equal to H-h + 1, so that the final joint is undocked and installed when the final joint is constructed; the reinforcement cage comprises a first cage body and a second cage body which are connected into a whole; the first cage body is arranged between the retaining piece and the bracket and is used for forming a force transmission part for connecting the underground diaphragm wall and the final joint with poured concrete; the second cage body is positioned above the retaining piece and is used for forming a retaining part connected with the retaining piece together with poured concrete; and a positioning piece is arranged at the bottom of the second cage body and is matched with the throwing rib. The underwater construction time is shortened, the construction process is simplified, the construction difficulty is reduced, and rapid and convenient construction of the final joint is achieved.
本发明属于沉管隧道工程技术领域，涉及一种沉管隧道最终接头装配式止退装置及其干湿交替施工方法，装置包括：牛腿，预制于最终接头侧面；止退件，浇筑于地下连续墙处，与牛腿相对设置；止退件的顶部预留甩筋，甩筋顶部至水平面的距离L满足条件L≥H‑h+l，以在施工最终接头时使最终接头出坞安装；钢筋笼，包括连接为一体的第一笼体和第二笼体；第一笼体设置于止退件与牛腿之间，用于与浇筑混凝土形成连接地下连续墙和最终接头的传力部；第二笼体位于止退件上方，用于与浇筑混凝土形成连接止退件的止退部；第二笼体底部设有定位件，定位件与甩筋配合。本发明减少水下施工时间，简化施工工艺，降低施工难度，实现最终接头的快速、方便施工。
Fabricated retaining device for final joint of immersed tunnel and dry-wet alternate construction method of fabricated retaining device
沉管隧道最终接头装配式止退装置及其干湿交替施工方法
AN XIUSHAN (author) / MENG FANLI (author) / LIU MING (author) / ZHANG YE (author) / LI LIANG (author) / XU BO (author) / ZHANG YIGE (author) / LI QIUSHI (author) / XU LINLI (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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