Workers work at the construction site of Greenland Center in Wuhan, Capital of Central China's Hubei province, Nov. 15, 2019. Xinhua News Agency/Xiao Yijiu
A construction worker of China Railway Construction Bridge Engineering Group Co., Ltd. works on the Yellow River Bridge in Linyi, North China's Shanxi Province, Nov. 13, 2018. Photo by Xue Jun (People's Vision)
On June 23, autonomous automatic press equipment is under construction on the Wangping to Tongjiang section of the Zhenguang Expressway in Tongjiang County, Bazhong City, Sichuan Province. Photo by Cheng Cong (People's Vision)
A measuring robot (R) and a concrete ceiling polishing robot (L) work at fengtong Garden, a residential project under construction in Shunde, Foshan, Guangdong province, On Nov. 9. Xinhua/MAO Siqian
"Tick, tick, attention, working..." A pink floor grinding robot delivers a voice safety warning at the songhu Pearl Project in Dongguan, South China's Guangdong province, Nov. 15, 2006.
Liu Yuming, general manager of songhu Pearl Project, told reporters that compared with the traditional manual operation mode, the robot is more efficient and brings less dust pollution, effectively ensuring the health and safety of construction workers.
In recent years, digital equipment such as floor grinding robot emerges in an endless stream under the new wave driven by digital technology. Through the deep integration and innovative application of new generation information technologies such as artificial intelligence, 5G and big data, digital architecture has become the core engine of industrial transformation and upgrading. Driven by multiple factors such as policy, technology and industry, digitalization of construction industry is rapidly stepping into a new stage of development.
Advanced technology
Smart apps show off
What is digital architecture? The digital construction, the white paper 2021, points out that the so-called digital architecture, is based on the concept of digital twin, full use of 5 g, BIM (building information model), the Internet of things, such as cutting-edge technology, to realize the whole process of construction, total factor, all participants digital, intelligent, so as to build the project, enterprise and industry's new platform ecological system.
As a pillar industry of the national economy, the construction industry continues to play an important role in promoting economic and social development. However, China's construction industry has been faced with problems such as poor product performance and waste of resources. Therefore, in the context of industrial digitization, intelligent application research and development has gradually become the industry consensus.
It is understood that the machines used in the Songhu Pearl project are produced by Guangdong Bozhilin Robot Co., LTD. According to the product line, the company has developed nearly 50 construction robots, most of which are designed to solve the pain points of the industry, 18 of which have been put into commercial application.
"In the past, the wall paint spraying link can only rely on artificial, like putty grinding, paint spraying will be filled with heavy dust and harmful fog." Wang Kecheng, assistant president of Bozhilin, for example, the use of indoor spraying robot, can achieve automatic spraying of primer, finish paint and other water-based materials. Only half a day of training, the staff can quickly get started, remote control to complete the job.
In fact, the construction robots developed by Prizlin not only free construction workers from heavy work, but also greatly improve the quality and efficiency of construction.
For example, the efficiency of measuring robot is more than 2.5 times that of manual, and the measurement accuracy is within 1 mm; Through the mechanical arm, the floor tile laying robot can accurately grasp and place the floor tile, and ensure that the flatness of the floor tile can reach 0.5 mm. Floor cleaning robot can clean stones, debris and dust, cleaning coverage of up to 90%...
In addition to the high technology of hardware, many intelligent building software is also playing a big role in the digital transformation of the construction industry.
Rockery Waterfall, located in Nubla Island of Jurassic World, is one of the landmark landscapes of Beijing Universal Studios Resort. This shocking scene is built by THE installation company of China Construction Second Engineering Group Co., LTD., with a large amount of BIM technology.
Only in BIM engineer Ning Huanchang's computer screen, bridge, wind pipe, cable and other equipment into a "silk line", according to the size of the ratio of 1 to 1 embedded software. In the face of the pipeline layout of Panqiu Wolong and the criss-crossing frame construction, engineers can only "pull the silk from the silk" with sub-millimeter accuracy, connect each cable to the equipment terminal, and finally successfully reduce the actual error within 3 cm, and realize the accurate installation of lighting, sound and equipment.
"BIM is to mechanical and electrical construction what X-ray is to surgeons. Using BIM can create visual models, just like photographing buildings." "In my opinion, digital empowerment has really made me a better architectural engineer," Mr. Ning told reporters.
Full-period visualization
Good safety management and guarantee
The construction of engineering projects not only has various standards and strict requirements, but also has a large number of participants, making the on-site management extremely difficult. The realization of efficient construction operation mostly depends on the organization and management ability of project management personnel.
However, no matter how strong the human management ability is, it is often out of reach, and it is hard to avoid the time when there are many secrets and few practices. Intelligent site system with full life-cycle control enabled by digital data appears at the right time, making managers more "aware" and becoming a sharp tool to solve problems.
Walking into the hall of the office of the Coke oven Gas Comprehensive Utilization Project Department of Anhui Carbon Xin Technology Co., LTD., you will see a large screen of comprehensive kanban, including real-time management data such as on-site number of people and type of work statistics, at a glance.
"Safe production is always the most important goal of project construction, and the most important role of smart site is to realize online safety management." Project manager Nie Lei said the system can quickly and accurately process and identify data, and can carry out round-the-clock, whole-process and all-round supervision, greatly reducing human input.
For example, when construction personnel enter and exit the site, the smart site system will automatically "brush" the personnel identity information. For those who do not enter the venue for a long time, the system will automatically freeze them and cancel their permission to enter the venue.
"We combine video AI algorithms with site monitoring to provide a variety of intelligent recognition algorithms, such as hard hats, reflective clothing and non-construction personnel crossing the line, to realize automatic and intelligent monitoring of 'unsafe behavior of people' on the site." Project department information implementation personnel said, "if there is a worker does not wear a helmet, the system background will automatically capture and real-time alarm, management personnel can manage through mobile phones and other devices."
For engineering projects to lock the "digital security lock", intelligent upgrade of the helmet is also indispensable. At the hengli project site in Nansha, the fourth Aviation Bureau of China Communications Co., LTD., the smart helmets worn by workers are particularly eye-catching.
"There is a sensor on the back of the helmet so that when workers put it on and enter the construction area, our managers can keep track of the movement of workers in real time." Lin Wudian, secretary of the Party branch of the project Department, said that the intelligent helmet also has real-time voice intercom function. In case of an emergency, the construction personnel can long press the SOS button on the helmet, and relevant personnel can lock the location of the workers after receiving the distress information, and implement rapid rescue.
In addition to "unsafe behavior of people", "unsafe state of things" is also an important cause of accidental injury accidents.
In recent years, backed by professional technical team, digital construction technology and product provider Pin-ming has made breakthroughs in the research and development of tower crane safety auxiliary technology and other core technologies, and has a number of invention patents. Among them, tower crane safety monitoring and management system is especially recognized by users.
"Due to the large structure of the tower crane, poor stability, and high altitude operations, once accidents occur, it is very likely to cause heavy losses, so safety management cannot be ignored." Tea co hardware edwinmcconkey general said, when the tower crane overload too much, wind speed, Angle of abnormal, monitoring management system using the technology of the intelligent collision, automatically by shift down, slow down and other measures to ensure the safety of tower crane, and the first time to push the hidden information to related personnel, this will contain safety accident in the bud.
It is reported that the mingming tower crane safety monitoring and management system has been applied to more than 85,000 tower cranes, and has been applied in Beijing Daxing International Airport, China west Science and Technology Innovation Port, Kuwait International Airport and other projects.
Strengthening green Orientation
Aim for a "dual carbon" future
According to the China Building Energy Conservation Association, as a "big user" of carbon emissions, China's carbon emissions during the whole construction process account for more than half of the country's carbon emissions, of which construction materials account for 28.3% and construction stage for 1%.
"Building operations emit more than 2 billion tonnes of carbon dioxide a year, so reducing carbon emissions in the construction sector will require a significant change in current thinking and methods in all sectors of the construction industry." Jiang Yi, an academician of the Chinese Academy of Engineering, pointed out that whether the digitalization of buildings can be promoted faster and better directly affects the realization of the "double carbon" goal.
Jilin Beishan Four Seasons Cross-country Ski Resort, contracted by China Construction Eighth Engineering Group Co., LTD., is the first cross-country ski tunnel transformed from a massive civil air defense cave in China, and also a "new name card" of digital low-carbon architecture.
"The original civil air defense tunnel did not have complete drawings and materials, which brought us great obstacles in construction. For example, the diameter of the tunnel section changed as much as 52 places, and there were also collapse and water gusher in the process of excavation expansion." Zhongjian eight innings engineer Guo Haiyan said in an interview with the financial times, in order to solve this problem, the construction team, the use of 3 d laser scanner, you do need the location of the blasting, accurate cavern excavation quantity is carried out, and the blasting of 180000 cubic meters of granite as backfill material, greatly reduce the project construction and the use of the energy.
Moreover, in order to minimize the occupation of the original natural landscape, the construction team used digital model design to "chisel" a lot of use space from the mountain, and set the steel component processing area, mixing material processing area and other areas in the indoor, saving land of more than 1500 square meters.
At the same time, the construction team also used BIM technology to integrate the outdoor snowway with the actual mountain terrain. With the help of model demonstration, more than 2,400 seedlings of 24 kinds were transplanted to the area with low vegetation coverage. According to statistics, the project uses BIM technology to complete more than 200 design optimization schemes for complex caverns, solve 4215 collision problems and reduce steel waste of about 56 tons.
With the acceleration of urban building renewal, many industrial land and facilities in the process of secondary utilization, often need to carry out environmental risk assessment and pollution control. With the help of digital technology, the intelligent level of risk assessment and restoration technology is improved, which provides a solution for pollution control of construction land.
"How do you link the field data back and forth, like an automated factory?" With this problem in mind, in 2019, Beijing Construction engineering and Restoration Company set up "Intelligent Restoration Employee Innovation Studio", committed to building a big data platform, in order to achieve intelligent environmental restoration.
According to introduction, the "ecological environment data management system" of the big data platform utilizes the Internet of Things technology to realize real-time monitoring, intelligent perception and data collection of the whole process of the project through sensors, cameras, mobile phones and other terminal devices. Through the large screen in the central control room, the operation of the whole project can be seen in a glance, covering the whole life cycle of the repair project, truly meeting the technical requirements of the whole chain.
"The technology should adapt to the demand, but also exceed the demand, and realize the digitization, visualization and intelligence of repair technology, which is an important direction for our future research." Li Shupeng, deputy general manager of Beijing Construction and Restoration Company, said, "I believe that in the near future, there will be more intelligent achievements applied in different scenarios of environmental restoration, relying on digital technology to empower industrial development."
Digital blueprint drawing on
It is time for industrial transformation
"At present, China is accelerating the deployment of new infrastructure, fostering and strengthening the new driving force of the digital economy, and China's construction industry has ushered in a period of strategic development opportunities." "In this context, how to seize the development opportunities of digital transformation and make breakthroughs in new technologies, new manufacturing, new infrastructure and new forms of business has become an inevitable choice for the construction industry to seize the commanding position of future development," said Zhao Baige, chairman of the Expert Committee of the Belt and Road International think tank under the Chinese Academy of Social Sciences.
The key is to encourage digital transformation of construction industry and build a new safe and healthy ecology of "industry + digital". At present, many places have put forward specific measures to strive for steady industrial transformation.
For example, Jiangsu Province proposes to accelerate the integrated application of BIM technology in the whole process of planning, survey, design, construction and operation and maintenance, and realize data sharing and information management in the whole life cycle of engineering construction projects. Guangdong province proposes to strengthen the construction of "machine generation" and other application scenarios. Enterprises that purchase and use special equipment for intelligent buildings that meet the requirements can enjoy the enterprise income tax credit policy according to regulations. Zhejiang province further strengthens digital leadership and proposes to strengthen the integrated application of Internet of Things, big data, cloud computing, artificial intelligence, blockchain, urban information model (CIM) and 5G in the field of architecture...
In the digital era, the deep integration of customer demand individuation, informatization and industrialization also puts forward new requirements for the role positioning of construction enterprises.
"To promote the digitalization of the construction industry, we should take the personalized needs of customers as the starting point and destination, because customer experience determines the future development trend of the industry." Huang Qifan, a distinguished professor at Fudan University, predicted that new roles such as digital building service providers will become the core of the industry as the industry's development logic shifts from zero-sum competition to ecological win-win.
Diao Zhizhong, chairman of Green Development Alliance of Zhongguancun Smart Building Industry, analyzed that in the future, construction enterprises can transform to operation service providers on the one hand, and agent construction service providers on the other hand, providing not only physical construction services but also digital virtual construction services for enterprises with land resources.
At the same time, the digital transformation of the construction industry is inseparable from the support of digital professionals, and it is necessary to strengthen talent training and reserve.
The School of Civil and Traffic Engineering at Shanghai Urban Construction Vocational College has been renamed The School of Digital Construction, the first of its kind in Shanghai to be named after "digital Construction". "What enterprises need in the future is compound talents. From the perspective of schools, they need to cultivate more students who are suitable for the current environment and can flexibly apply digital construction technology." Liu Yalong, the dean, introduced that last year, the college tried to set up architectural engineering technology major (intelligent construction direction), whose learning content involves cloud computing, Internet of things, block chain and so on, which was welcomed by many students' parents.
Lu Xin, president of China Association of Vocational and Technical Education, believes that the Catalogue of Vocational Education (2021) issued by the Ministry of Education covers 19 major categories, covering all scenarios of digital architecture. "From the micro level
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