2020 Guochao debut|Domestic high-end intelligent black pavement complete sets of paving and compaction equipment were applied for the first time in Ligao Expressway

On August 14, 2020, the intelligent compaction assistance technology exchange meeting for asphalt pavement in the Nanjing section of the Liyang-Gaochun Expressway was held in Liyang, Jiangsu. Relevant leaders from Jiangsu Provincial Traffic Engineering Construction Bureau, experts and experts in the field of transportation in more than 20 cities across the country and representatives of pavement construction customers participated in the on-site observation meeting. At the construction site of the surface layer of the LYG-NJ21 bid section of the high-speed Liyang to Gaochun Expressway in Jiangsu, the intelligent Sany high-end black pavement paving compaction equipment is in full swing to complete its debut, which is a highway constructed by domestic complete sets of road machine equipment, and it is also the first application of Sany complete sets of intelligent compaction assistance system on the highway.

Dare to be the first in the world

The national brand of road machinery has become the absolute protagonist of highway construction

Jiangsu is the starting point of the development of China's road machinery industry, and its high-speed construction has been leading the development of national highways with high standards and strict requirements, and has a certain representation in the industry. By the end of 2019, the total length of highways in Jiangsu Province was about 160,000 kilometers, and the highway density reached 154 kilometers per 100 square kilometers. Jiangsu Province is not only dense highways, but also the construction standards of highways are particularly strict, and the flatness of asphalt surface course on some highways is even 0.4mm smaller than the national standard, which has extremely high requirements for the paving flatness of asphalt pavers.

As an important part of the "Hengba" Gaochun-Taicang Expressway, the main framework of the "five vertical, nine horizontal and five linked" expressway network in Jiangsu Province, Ligao Expressway is the first fast passage connecting Gaochun to southern Jiangsu and even Shanghai, which is of great significance for improving the expressway network in the Yangtze River Delta region, strengthening the economic ties in southern Jiangsu, and promoting economic development along the route. Whether it is in the industry status or in the construction standards, the construction of Ligao Expressway has affected the development of China's road machinery industry.

As early as March this year, the Jiangsu Provincial Transportation Department boldly launched Sany equipment and put Sany high-end intelligent black pavement paving compaction equipment into the construction of Ligao Expressway. This move is not only because of Sany's leading position in the industry, but also because the products are reliable and trusted by users. Highway asphalt paving and compaction operation uses a full set of domestic Sanyi road machine equipment, which is a new breakthrough in the national road machinery industry. This means that the national brand has made a breakthrough in the high-grade highway asphalt paving market, sounded the clarion call of "domestic substitution", and has become the absolute protagonist of high-speed construction, which also represents the improvement of the overall strength of China's equipment manufacturing, indicating that China's equipment manufacturing industry has made a qualitative leap.

After a four-month inspection, the surface construction effect of Sany high-end black pavement complete set of paving and compaction equipment equipped with intelligent compaction assistance system has been verified again, and the road surface is smooth and clean, no color difference, and the material segregation control is excellent, which fully meets the highway construction standards. The owner and relevant leaders highly appreciated: "Sany paver walking, stable material supply, high degree of automation, and the flatness and compactness of the surface layer meet the design requirements. ”

With the back-and-forth construction of Sany's high-end intelligent black pavement complete set of paving and compaction equipment, the three-layer asphalt paving process of Ligao Expressway will be completed in late August, which is the last and most important process of highway construction. After the completion of the three-layer asphalt paving, it represents the official completion of the Nanjing section of the pavement project, the next step will be to install expansion joints, guardrails, marking signs and other follow-up work, the first highway constructed by the domestic complete set of road machine equipment will be opened to traffic in October, 1 month faster than the planned opening time.

Leading the era of intelligence

The complete set of intelligent compaction assistance system made its debut in high-grade pavement construction

As a leading enterprise in construction machinery, Sany Heavy Industry has been keeping up with the trend of the times, taking intelligence as the starting point, promoting the company's intelligent and informatization construction, and promoting the transformation from "Made in China" to "Created in China". In the construction of Ligao Expressway, Jiangsu Changxin Road and Bridge Group adopted the intelligent assisted compaction construction method to show the latest achievements of intelligent manufacturing and intelligent construction to the industry.

Under the "supervision" of the intelligent compaction assistance system, the high-end black pavement paving compaction equipment on site is working in an orderly manner, and the control platform is fully automated to monitor the construction conditions of the machine group equipment. Through the large screen at the construction site, you can clearly see the multi-dimensional data such as the running track, blanking data, and production orders of Sany equipment in the construction process. Intelligent technology automatically generates quality reports, realizes equipment collaborative operation, plays back construction track animation, and provides big data support for construction process improvement and later equipment maintenance.

Sany Intelligent Compaction Assist System is a new generation of digital intelligent construction assistance system developed based on high-precision Beidou positioning, intelligent sensors, wireless networks, cloud platforms and big data. Mr. Zhong Huiping, deputy director of Sany Intelligent Research Institute, said, "Sany intelligent compaction assistance system has changed the shortcomings of traditional paving and compaction operations, its positioning accuracy and communication speed are incomparable, and it can also give voice prompts to the driving speed and compaction temperature, so as to avoid the impact of too fast speed and too low temperature on the construction effect." At the same time, the system can completely record each rolling process, which greatly improves the construction quality and efficiency, reduces the difficulty of construction measurement and improves the efficiency of construction data collection.

As early as 2018, Sanyi Road Machinery launched an unmanned single-drum roller, opening a chapter of unmanned; In December of the same year, the unmanned paver and unmanned roller formed a fleet of aircraft to carry out the first construction trial run at the construction site of Shanghai Zhujian Road Road Reconstruction Project, boosting road construction to a new level of intelligence and unmanned.

The advent of the era of intelligent construction has provided broad prospects for the development of the pavement construction industry. The advent of Sany intelligent compaction assistance system is like installing a "smart brain" on the equipment, which is of great significance to improving the level of highway modernization in China. The intelligent assisted compaction construction method released in this observation meeting amazed everyone on the site with a new intelligent image, which will bring new changes to the pavement construction industry.

True color performance

Sanyi Road machine yellow has become the most beautiful scenery on the Ligao Expressway

The Sany high-end intelligent black pavement paving compaction equipment participating in the construction of Ligao Expressway all uses Sany C8 products, and its representative Sany yellow injects a different scenery into the construction of Ligao Expressway. At the construction site, two Sany 12-meter-wide C8 pavers paved SAP120C-8 in parallel, two 30-ton SPR300C-8 tire rollers and five 13-ton STR130C-8 tandem rollers followed, compacting and paving the smooth road back and forth, the scene was spectacular, and the atmosphere was extremely warm.

The C8 paver and roller, which undertook the heavy task of construction, are the products developed by Sany for the large-width and large-thickness paving compaction of high-grade pavement. After authoritative testing, the unique screed technology of independent innovation adopted by the paver fully meets the requirements of high-grade pavement construction, and the construction effect has been unanimously recognized by authoritative experts. The high-end black complete set of paving and compaction equipment of Sanyi Road Machine is favored by large-scale road construction parties due to its ultra-high construction efficiency and excellent construction effect, which can not only help users save construction costs, improve construction efficiency and ensure construction quality, but also greatly enhance the brand image of the owner and win a good market reputation for the construction unit. It is precisely because of this that Sanyi Road Machine can stand out and be affirmed by the Jiangsu Provincial Transportation Bureau to help the construction of Ligao Expressway.

After nearly 20 years of unremitting efforts, Sany has made great progress in the field of complete sets of pavement paving and compaction, and the complete sets of Sany high-end intelligent black pavement paving compaction equipment involved in the construction have also lived up to expectations, and once again demonstrated the strength of the national brand with their excellent performance and irrefutable construction effects.

In the era of the Internet and big data, intelligence has become a key factor leading the development of the construction machinery industry, and all enterprises have invested a lot of manpower and material resources to engage in intelligent construction. As a leading enterprise of construction machinery based on innovation, Sany Heavy Industry has taken the lead in intelligent construction, and the high-end intelligent black pavement complete set of paving and compaction equipment has once again demonstrated its industry-leading strength with its outstanding performance, setting a model for future construction. Taking the successful holding of this observation meeting as an opportunity, it shows that China has fully ushered in a new era of intelligent construction!