As a key water transport project in Qingdao's 14th Five-Year Plan and a major project in the construction of the Qingdao International Shipping Center, the Qingdao International Cruise Port Area No. 2 Wharf and Supporting Works, undertaken by China State Construction Port Engineering Group, mainly involves the reinforcement and renovation of Berths 13 to 16 on the north shoreline of Qingdao Port's No. 2 Wharf (including about 32.5 meters of Berth 12), with a total shoreline length of approximately 661.5 meters. The project started at the end of February this year. Important progress has now been made in the construction of Berths 13 to 15; the main structure of Berth 16 has been completed, the construction of the front-row and middle-row cast-in-place piles has been fully completed, and the construction of the rear-row cast-in-place piles and the superstructure is being accelerated.

Qingdao Port's No. 2 Wharf was first built in 1901 and has been closely linked with the city's development for more than a century. Its evolution reflects the development history of modern Chinese ports and has also accumulated Qingdao's historical memory. Structural reinforcement of wharves is an inevitable requirement of port engineering development. This renovation is not only a creative use of shoreline and land resources, but also an important manifestation of the transformation and upgrading of Qingdao Port's old port area, and a key measure to promote integrated port-city development. Through restoration, reinforcement, and functional renewal, it will further improve port functions and meet new development needs.

The construction challenge lies in how to complete the upgrade and renovation while preserving the wharf's original historical appearance. Aging pile foundation structures, a narrow site, and complex geology... each difficulty tests the technology and wisdom of the project team. Despite the many difficulties, the team has always upheld one belief: "We must find the most harmonious way to integrate historical craftsmanship with modern construction." To preserve the historical appearance of the wharf frontage while improving the load-bearing performance of the original timber piles, the project team installed single anchor plates behind the timber piles, like erecting an "invisible support" for the old wharf. This approach neither changes the wharf's original outline nor fails to improve the structural bearing capacity; it forms a reliable "backing" and creates a load-bearing system that "holds firmly and resists stably." In the rear area, loose soil was compacted to form a solid foundation layer, comprehensively strengthening the safety defense line of the old wharf.

Pile foundation construction on the sea side was another test. Steel casing installation, pile foundation drilling, and cast-in-place pile pouring—each step could affect the adjacent old timber piles. The team engraved "standardization" into every process: repeatedly calibrating positions before steel casing installation, strictly controlling rotation speed and depth during drilling, and strictly controlling concrete quality during cast-in-place pile pouring, solving construction difficulties through precise control. Through strict verticality control, all 407 pile foundations in the front row of the row-pile diaphragm wall met quality standards, safeguarding the quality bottom line with rigorous procedures and ensuring the new pile foundations and old structures "coexist peacefully."