Above the underground sewage treatment plant, the construction team will cover the soil layer and plant a lot of greening on it to make it a large green landscape.

With the mature application of precast technology in bridges and houses, this technology is introduced into underground space engineering.

The traditional precast construction mainly prefabricates one-dimensional beam or column components, and the intersection between beams adopts on-site pouring construction.

The less important part of the structural stress is cast in situ.

The specific method is to prefabricate the “cross” two-dimensional column beam joints in the factory, then pour the beam members between the beam joints on the construction site, and then construct the laminated slab after the pouring is completed.

The foundation pit of the underground plant is about 150000 square meters, which is the largest fully open space in Shanghai.

Shanghai Bailonggang sewage treatment plant, the largest sewage treatment plant in Asia, has a huge sewage treatment plant embedded underground, covering football fields and parks on the ground.

It is possible to build in the underground space by “building blocks”, and the construction safety level and construction efficiency will be improved.

The construction technology of precast “cross” two-dimensional column beam joint precast slab is adopted, which is also the first in the field of precast construction in Shanghai.

Bailonggang sewage treatment plant will not only take on a new look in appearance, but also fully meet the class a discharge standard after the completion of the standard upgrading and reconstruction project, becoming a real high-specification large plant.

During the project process, the construction team needs to consider various influencing factors of underground construction, including waterproof performance, compressive capacity, etc.

The biggest advantage of this is that the most critical and complex node parts in the structure are processed in the factory with relatively good construction conditions to ensure the construction quality.

Through the reasonable design of the length of the precast segment, the combination part of the precast segment and the cast-in-place segment is selected at the place with the least stress of the structure during the construction process, so as to ensure the safety and rationality of the stress of the structure, and make the project construction economical and reasonable on the premise of safety.

▲ click on the picture to register for the engineer conference source: precast and prestressed concrete structure, the largest sewage treatment plant in Asia – Shanghai Bailonggang sewage treatment plant.

It is the largest sewage treatment plant in Asia and one of the largest sewage treatment plants in the world, The treatment capacity accounts for 1 / 3 of Shanghai’s urban sewage treatment capacity.

This innovative approach not only reduces the construction period and improves the construction efficiency, but also reduces the environmental pollution on the construction site and meets the requirements of green construction.

After the completion of the whole underground sewage treatment plant, it will also be covered with more than 2 meters of soil and planted with greening, so as to be more environmentally friendly and beautiful.

The prefabrication and assembly construction of two-dimensional joints is the opposite, prefabricating the beam joints and pouring some beam segments on site.

First, it is the first underground precast project in China.

At the site of the “two-dimensional node precast construction technology consultation seminar”, the blg-c3 bid project of Bailonggang sewage treatment plant was successfully implemented, using the country’s first large underground space precast technology and the construction technology of precast “cross” two-dimensional column beam node precast slab, which is still the first in the field of precast construction in Shanghai.

Bailong port reconstruction project is the first time that precast structures are widely used in large underground space in China.

The two-dimensional node precast construction is that the intersection of beam nodes in multiple directions is precast, and the beam components between beam nodes are cast in situ.

Wheel Spacer

By using precast slabs, constructors can directly build blocks on the construction site, which can not only shorten the construction period, but also be green and environmental protection and reduce dust in the construction site.

The so-called prefabrication and assembly technology is to complete all kinds of components required in the construction in the factory in advance and directly transport them to the construction site for assembly, which can not only reduce the pollution of on-site construction, but also speed up the construction progress.

All sewage treatment equipment will be buried underground, and on the ground are green stadiums and parks for public recreation.

Although the prefabrication and assembly technology has been very mature after years of development, it is the first case in China to be used in such a huge underground project.

In order to further improve the safety in the construction process and shorten the construction time, in this construction process, the project team also innovatively adopted the precast “cross” two-dimensional column beam joint to solve the problem of difficult construction of the traditional one-dimensional precast structure at the beam column joint.

It can treat up to 1.72 million cubic meters of sewage every day and serve 3.56 million people in an area of 271.7 square kilometers.

At the same time, with more and more urban underground space projects, relying on the technical advantages accumulated in the field of prefabrication and assembly.

Second, it adopts a new two-dimensional model, which not only controls the cost, but also is more efficient..

The combination of the two greatly speeds up the construction efficiency and reduces the environmental pollution at the construction site.

At the same time, Bailonggang sewage treatment plant will also set a record – the largest underground sewage treatment plant in Shanghai.

Two innovations.

This sewage treatment project will play an exemplary role nationwide in the future.

Located in Chaoyang village, Heqing Town, Pudong New Area, Shanghai Bailonggang sewage treatment plant belongs to Shanghai Yangtze River port.

The operators will inspect the sewage treatment situation and deal with unexpected problems in time.

Bailong port reconstruction project is the first time that precast structures are widely used in large underground space in China.

Applying prefabrication and assembly technology to underground space engineering is not simply putting precast parts underground, but in the design stage, we should consider the durability, waterproof and soil pressure resistance of construction materials, and many environmental factors.

The second floor is a sewage treatment tank, and the first floor is an empty box structure made of reinforced concrete.

In the future, all sewage treatment links will be completed in this huge underground space.

The underground space is divided into two floors.