Shandong Jiqing Expressway

The Jinan-Qingdao Expressway is the first expressway in Shandong Province. It was opened to traffic in 1993. The highway traverses 23 cities, counties (districts) in the Shandong Peninsula and connects important industrial cities such as Jinan, Zibo, Binzhou, Weifang, and Qingdao. The GDP of the cities along the route reaches 3.15 trillion yuan, accounting for 43% of the province's total. At the same time, it has connected multiple modes of transportation such as railway, waterway, and aviation, and has undertaken nearly 15% of the expressway traffic in the province. In 1999, he won the 8th National Excellent Engineering Design Gold Award.

In June 2016, the reconstruction and expansion project of Jiqing Expressway officially started. It was completed by Shandong High Speed Group in 4 years.

The total length of the project is 309.172 kilometers, the total investment is 29.796 billion yuan, and the design speed is 120km/h. It is the first "four-lane to eight-lane" expressway construction project in Shandong Province that does not interrupt traffic. , The largest investment project. It is also the country's only highway reconstruction and expansion green technology demonstration project.

As the strongest highway in Shandong, the reconstruction and expansion project of Jiqing Expressway has created many world firsts, once again showing Shandong's leading road construction technology.

"Opening to traffic and construction at the same time" poses extremely high challenges to the ability of traffic organization. Shandong Expressway innovatively uses big data analysis, drone monitoring and other scientific and technological means to conduct traffic safety assessments on each road section and guide the installation of traffic safety signs such as concrete guardrails and mobile steel guardrails. At the construction site, many cones are equipped with IoT chips, and the traffic dynamic information on the spot is transmitted to AutoNavi's IoT platform in real time through the chips in the cones. Shandong Expressway then pushes these road conditions information to past drivers and passengers to serve as a reminder.

BIM technology has also been applied to engineering. With the help of the "smart brain" of BIM technology, the construction of the Xiaoqinghe Bridge has achieved digital controllability, solving the problems of collision between more than 6000 longitudinal, horizontal and vertical prestressed steel beams and steel bars, and the construction period has been greatly shortened.

HORSE CONSTRUCTION, as the structural reinforcement material supplier for the reconstruction and expansion project of Jiqing Expressway, is also fortunate to participate in this innovative technology demonstration project.

In the first bid section, the highway needs to be reinforced with externally bonded steel and crack repairs due to long-term overload operation. In order to meet the higher traffic load requirements of the Jiqing Expressway and the service life of more than 50 years, the 14th Bureau of China Railway, the construction party, conducted a rigorous selection of reinforcement materials for 2 months.

The quality of Horse steel jacketing glue and crack repair adhesive far exceeds national standards. Not only has the most comprehensive quality inspection report, but also has the characteristics of green safety, environmental protection and non-toxicity. Innovative technology was also applied to make the glue have the advantages of low density, initial viscosity and good flowability, which is convenient for construction and saves consumption. It conforms to the green technology concept of the reconstruction and expansion project of Jiqing Expressway and successfully won the bid.

In order to make the reinforcement construction proceed smoothly and shorten the construction period, Horse also provided a full range of services.

The construction period for the reconstruction and expansion project of Jiqing Expressway is very tight. In order to ensure the smooth progress of the project, Horse completed millions of shipments within 2 months and delivered the goods directly to the construction site, minimizing the logistics turnaround and saving time.

In addition, because the construction party tried the external bonding steel reinforcement process for the first time, Horse sent a commissioner to guide the pouring construction process on site for 3 consecutive days to ensure the quality of reinforcement. And with a professional vision, highly efficient filling equipment was recommended, which accelerated the construction progress.

The Jinan-Qingdao Expressway opened to traffic, with a capacity of 80-100,000 vehicles, has been upgraded from the original Level 5 service level to Level 2, which greatly saves transportation costs and improves transportation efficiency. According to estimates, the Xinji-Qingdao Expressway will meet the travel needs of the cities along the route due to the growth of motor vehicles in the next 10-20 years, and provide a strong traffic guarantee for the conversion of new and old kinetic energy, investment promotion, and balanced economic and social development of the cities along the route.