The first in the Yangtze River, Taizhou City's traffic relief solution helps "application technology of new prefabricated high-pile wharf"

On the afternoon of April 23, the expert demonstration meeting on the design and construction plan of the lower beam prefabricated installation of the Taizhou Gangshen International Logistics Center Wharf Project was held online in the form of a video conference. The meeting approved the design plan of the cast-in-place transformation of the lower beam to the prefabricated installation, which will be the first port engineering project in the Yangtze River constructed with prefabricated technology.

The Shenzhen International Logistics Center Wharf Project is a provincial key project and a coal logistics park with a national key layout. It is located in the Xingang operation area of Jingjiang Port District. The total investment is estimated to be 2.285 billion yuan. It is a high-level environmental protection, intelligent and professional coal terminal built on the basis of no new shoreline of the Yangtze River terminal. The project will build two 100,000-ton bulk cargo berths (the hydraulic structure is designed for berthing 150,000-ton bulk carriers), with a berth length of 693 meters and an annual design throughput of 13.6 million tons.

According to the traditional construction plan of high-piled wharf along the river, the lower beams are all constructed by cast-in-place construction. A large amount of raw materials required for cast-in-place are difficult to guarantee supply due to the impact of the epidemic, which affects the progress of the project. At the same time, the summer flood season is coming. If the construction of the lower beam cannot be completed in time, it will affect the quality of the previously completed pile foundation engineering and cause serious losses.

After learning about the relevant situation, Taizhou Transportation Port and Shipping Development Center took the initiative to contact the project design unit and construction unit in accordance with the requirements of the Provincial Department of Transportation to "actively expand effective investment in transportation" and "help enterprises to bail out". Explore the feasibility of applying the new prefabricated high-piled wharf technology with successful cases in coastal areas to port projects along the river. Due to the great differences in tidal range, water flow velocity and operating conditions along the Yangtze River and coastal areas, the Port and Shipping Center organized technical personnel from relevant units to focus on technical research. They came up with relatively mature design plan, construction organization and structural testing and inspection requirements in time, and successfully passed the expert argumentation.

The application of this technology, mainly through the standardization, modularization and easy on-site assembly of the wharf components, greatly reduces the number of on-site operating vessels and personnel, reduces the safety risks of the operators working on the water, and improves the construction efficiency. This realizes the separation of the high-piled wharf component manufacturing unit and the installation and construction unit. On the premise that the total project cost does not increase significantly, it effectively overcomes the difficulty that raw materials cannot continue to enter the site in a timely manner during the severe epidemic situation, and at the same time is more conducive to reducing environmental pollution at the port engineering construction site. Improve the environmental capacity and improve the green level in the process of port construction in Taizhou City.