On the morning of June 18th, the construction site of the eighth contract section of the Suizhong to Panjin section of the Beijing-Harbin Expressway was crowded with people. More than 300 experts, scholars, and industry representatives from the transportation construction field across the country gathered here to observe the actual operation of the Sany unmanned paving machine. This observation not only showcased the breakthrough achievements in the field of intelligent construction machinery in China, but also provided fresh samples for the future development direction of infrastructure construction.
Set three industry records!
The Sany unmanned paving machine has set a record in this project:
The largest scale: 2 spreading and 10 pressing fully unmanned configuration, achieving continuous construction of the entire thickness (3 layers) of asphalt pavement.
The longest duration: Set a record of over 480 hours (more than 20 days) of continuous asphalt construction in a single 24-hour intelligent operation.
The largest width: Unmanned dual machine laying 25.25 meters of road width (breaking the 2024 Sany record of 19.25 meters for unmanned construction on the Beijing-Hong Kong-Macao Expressway), currently the largest width in the field of unmanned paving machine.
The reconstruction and expansion project of the Suizhong to Panjin section of the Beijing-Harbin Expressway can be regarded as a textbook of complex working conditions on China's expressways, which is prominently reflected in the complex construction environment and precise process connection. Facing the challenges of tight schedules and heavy tasks, Sany's unmanned paving machine has ingeniously addressed the pain points of traditional construction with its intelligent operation mode of 24-hour continuous construction.
The centimeter-level precise collaboration of the steel behemoths
At the pavement construction site of the K496-K497 section, a group of unmanned machines composed of 2 pavers and 10 rollers is like elegant mechanical dancers, efficiently and precisely carrying out pavement construction operations. Through the deep integration of Beidou's high-precision positioning and intelligent scheduling algorithms, the operation accuracy of the aircraft cluster has reached the centimeter level.
Facing the construction challenge of an ultra-wide road surface of 25.25 meters, all equipment starts and stops gently and moves at a constant speed, which can avoid quality risks caused by human errors. In addition, while ensuring the smoothness and density of the road surface, multiple safety measures and minimally manned operations also guarantee the safety of on-site operations to the greatest extent. According to the project leader, this machine group has been in operation for over 50 days, completing nearly 90 kilometers of road surface construction. Compared with traditional construction methods, its efficiency has increased by 20% and the labor input has been reduced by 60%
Authoritative Insights: The New paradigm of Intelligent Manufacturing Sets Industry benchmarks
That afternoon, the symposium and exchange meeting of the achine was a complete success. Sun Zuowei, the general manager of Sanyi Road Machinery Marketing Company, delivered a speech, saying, "The practice of the Beijing-Harbin Expressway has verified the reliability and universality of unmanned construction under complex working conditions." Subsequently, representatives from China Railway First Group, Liaoning Provincial Transportation Construction Management Company and Liaoning Highway Society delivered speeches respectively, highly recognizing the construction performance of the machinery group. Dr. Huang Zichao, the vice president of Sanyi Zhilu Technology Research Institute, provided an in-depth interpretation of the principle of unmanned spreading and compaction technology, which received wide acclaim. Based on its construction practice, China Railway First Group praised the reliability of the machinery group and looked forward to the intelligent development prospects of road machinery. The on-site exchange and Q&A session were lively and the overall feedback was positive. The experts attending the meeting unanimously agreed that this technology has set a new benchmark for intelligent construction in the industry.
The profound significance behind the efficiency revolution
For the expansion and renovation project of the Beijing-Harbin Expressway, the value of Sany's unmanned technology goes far beyond merely speeding up the construction process. The road surface project, which was originally scheduled to be completed on July 31, is expected to be finished ahead of schedule on June 25, thus securing a nearly 40-day grace period for the subsequent installation of traffic safety facilities. Meanwhile, unmanned construction significantly reduces the number of construction workers in high-risk environments, successfully achieving the safety goal of "zero accidents". From an industry perspective, this represents a leap from being driven by human experience to single-machine automation and then to multi-machine collaborative intelligence. As experts at the on-site observation meeting commented: "The unmanned aircraft fleet of Sany not only redefines the efficiency of expressway construction, but also verifies the technical adaptability of China's equipment manufacturing in complex scenarios, providing a replicable intelligent solution for the infrastructure output of the Belt and Road Initiative."
Pay tribute to the dream of building a strong infrastructure nation with innovation
When the Sany unmanned paving machine is writing a new chapter of intelligent construction on the Beijing-Harbin Expressway, this technological revolution upgrading from "Made in China" to "Intelligently Made in China" is injecting strong impetus into the construction of transportation infrastructure in China and even the world. As Sun Zuowei, the general manager of Sanyi Road Machinery Marketing Company, said, "What we develop is not only equipment, but also a profound reflection on the harmonious coexistence of people, machines and roads." In the global wave of intelligent infrastructure construction, the Chinese solution is all set to go.