China has completed the world’s largest underwater shield tunnel under the Yellow River in Jinan, and the shield section was finished in only 110 days. 中國濟南建成了世界最大的黃河水下盾構隧道。該隧道直徑17.5米，全長超過3.2公里, 盾構段僅花了110天完工.

The tunnel measures 17.5 meters in diameter and stretches more than 3.2 kilometers. Engineers used a massive machine called Shanhe to dig the passage. Work began on September 1, 2024.

This breaks global records for both scale and speed. The tunnel averaged 16 to 18 meters of progress per day. It is part of the Huanggang Road project and shows how China is pushing tunnel construction limits. Such projects improve transport, reduce travel time, and set new benchmarks for engineering worldwide.

中國濟南建成了世界最大的黃河水下盾構隧道。該隧道直徑17.5米，全長超過3.2公里。工程師們使用名為「山河」的巨型機器開挖了這條隧道。工程於2024年9月1日動工.

這打破了規模和速度的世界紀錄。隧道平均每天進展16至18公尺。它是黃岡路計畫的一部分，展現了中國如何突破隧道建設的極限。此類專案改善了交通運輸，縮短了行程時間，並為全球工程領域樹立了新的標竿