The project's thermal insulation envelope and laboratory and other supporting cold storage facilities are provided by Jiangsu Jingxue Energy Saving Technology Co., Ltd. The outer protective structure is mainly made of 220mm thick PIR sheet, which is foamed with pentane, which has no pollution to the atmosphere, zero emission, no fluorine, and will not destroy the atmospheric ozone layer.
The original text is reproduced as follows:
Xinhua News Agency, Beijing, September 4. The first Antarctic scientific research station built by a Chinese company for other countries - the Brazilian Commander Ferraz Antarctic Scientific Research Station (Ferraz Station for short) is expected to be completed in March next year on King George Island, Antarctica. . In the "extreme" Antarctic climate and environment, what "extreme construction" technologies must Chinese companies rely on to make the scientific research station stand in the Antarctic snowstorm?
——Fully assembled construction, building a house like building blocks
Antarctica, the last piece of pure land on earth. To build a scientific research station in Antarctica, it must comply with the requirements of relevant international conventions for zero pollution and zero emissions, and no rubbish can be left in Antarctica.
The Ferraz Station adopts a fully assembled station construction mode, that is, the interior is a prefabricated container functional module, and the outer layer is a thermal insulation board installed on site. All the modules are transported to the South Pole for assembly.
Fully assembled construction is like building Lego blocks. Chinese enterprises have manufactured all container modules, steel structures and thermal insulation layers in China, and all civil works, equipment installation and fine decoration at the construction site are only completed by assembly.
Considering the harsh environment in Antarctica and the construction window of only 4 months, the fully-fabricated construction can compress the on-site assembly work to a minimum, and can ensure the extremely high thermal insulation and airtight requirements of the building. It is the mainstream way of building stations in Antarctica in recent years.
Industry experts believe that fully assembled construction is not only suitable for Antarctica. With fully assembled modular construction, skyscrapers may be "built" in a short period of time.
——Building Information Model Change the plane to 3D
How can a fully assembled system maximize the accuracy of construction? It relies on building information modeling technology (BIM), which is generally said to make the design plan three-dimensional and build the house on the computer platform first.
Zhang Yi, director of the Polar Architecture Research Center of the Architectural Design and Research Institute of Tsinghua University, told reporters that compared with the previous rough construction methods, BIM represents a more and more refined and complex construction trend. Using BIM means that before the real entity processing, the three-dimensional platform simulates the relationship from structure to building layer by layer, and finds possible mistakes or errors in each link.
"In order to ensure the accuracy and speed of on-site assembly in Antarctica, BIM is needed," Zhang Yi said, "to make complex designs three-dimensional, and to examine errors and vacancies in advance."
Huang Bihe, a project engineer in charge of container assembly at the scientific research station in Yangzhou, also said that in the past, two-dimensional design was used. Engineers knew it, but workers didn't. The former took more effort to explain. With BIM three-dimensional, the time to explain to workers can be reduced by 20%. In addition, BIM can automatically generate a bill of materials, and the machine automatically estimates the cost instead of manual estimation, which also saves some materials.
——Real-time cloud platform to help cross-border communication
Construction of nearly 5,000 square meters of scientific research station, there are only 226 functional container modules. Communication barriers lie between Chinese construction companies, the Brazilian military, and Brazilian and Portuguese designers. With the help of real-time cloud platform, Chinese enterprise innovation effectively resolves the connection problem in design and construction.
At the beginning of the project last year, the Chinese side tried to use "drawing" to communicate the construction details with the foreign side. The construction period was tight and time and space were not allowed. The two sides could only abandon this inefficient way of communication. With cloud platforms, shared software resources and information can be provided to computers and other devices on demand.
Gao Guanghu, deputy general manager of Baosteel Building System Integration Co., Ltd., the construction company responsible for the decoration and electromechanical deepening design of Ferraz Station, said: "We thought of keeping all the designs in the cloud platform, that is, any piece of design we do is in the cloud. Inside, so that the Brazilian side and the Portuguese side can see (progress) at any time.”
As a result, all parties saw every part, every screw, and every glued seam of the 3D simulation on the cloud platform, which greatly promoted the process of construction review, communication, modification and signing.
It can be said that it is precisely the interlocking and interconnectedness of Chinese enterprises from prefabricated full assembly, 3D simulation, to cloud platform communication process that can make the "horological-level" precision design of the Ferraz Station finally changed from drawings to Reality. (Participating reporters Zhang Miao, Zhao Hui, Zhu Wanjun, Liu Yinan, Zhang Jiansong)