by Nanmen station of Xicheng line won the honorary title of “precast building demonstration project”.
On December 30, 2021, Nanmen station of PPP project of Wuxi Jiangyin intercity rail transit project undertaken by the company successfully passed the acceptance of 2021 construction industry modernization demonstration project of Jiangsu Provincial Department of housing and urban rural development, and was awarded the honorary title of “precast building demonstration project”, It has become the first subway project in Jiangsu Province to win this award.
Nanmen station is the first assembled and laminated integrated station in China.
The bottom plate of the project is cast-in-situ concrete, the middle column is concrete-filled steel tubular column, and the outer wall, top plate, middle plate and longitudinal beam are precast composite components.
The bottom plate and side wall, middle plate and side wall, side wall and side wall of the station are connected by new ring buckle connection joints, the plate adopts pretensioned prestressed members, and the beam adopts section steel composite structure, Through the prestress and section steel to resist the construction load, the concrete is finally poured to form an integral frame structure, which effectively ensures the structural stress and waterproof of the station.
The design and construction scheme of the station can be pushed under the conditions of rich area and conventional foundation pit with support, and the suitable range is wide.
The use of the assembly and superposition integral underground station technology greatly reduces the on-site formwork erection and reinforcement binding process, the on-site construction workload ⽐ the cast-in-situ station is greatly reduced, the construction waste and dust ⼤ are reduced, the degree of mechanized operation ⾼ the on-site labor demand is small, the labor cost and safety production ⻛ insurance are reduced, the adverse impact of construction on the urban environment is effectively reduced, and the construction period is shortened, Reduce the impact of subway construction on urban traffic.
The technology of assembled and superimposed integrated underground station in Nanmen station conforms to the development concept of green intelligent construction.
Precast components can realize factory standardized and industrialized production, ensure quality control, green, energy-saving, low-carbon, environmental protection, efficiency and intelligence, which is conducive to saving resources and energy, improving labor production efficiency and promoting the deep integration of construction industry and information industry, Promote the transformation and upgrading of the construction industry, with remarkable social benefits.
The General Contracting Department of Wuxi project and its branches will continue to adhere to the original intention of “quality first”, constantly polish and Study on the road of building high-quality demonstration projects, solidly do a good job in construction site management, constantly explore and summarize the advanced practices and excellent experience in the construction of assembly and superposition integrated station project, so as to “add bricks and tiles” for the smooth capping and excellence creation of subsequent stations.
Photo / Xu Lin, text / Xu Lin, Fu Zhongxiang manuscript source: Wuxi project party branch manuscript review: Liu Dongxu editor: Liu Xiaoying..
