The shield is actually a sharp-edged cylinder that cuts through the earth, squeezing the earth in at the shield's face. Tunnel workers gather the muck and dirt as it pours in. They toss the dirt on ...

ZHENGZHOU -- Construction has started in Zhengzhou, capital of Central China's Henan province, to use a shield tunneling method to create an underground parking lot. It is the first time the ...

China drilled a tunnel through for expressway transport in Beijing. It is the longest expressway tunnel in the country created using the shield-tunneling method. This was reported by The Xinhua News ...

During the construction and assembling stages of shield tunnels, the ellipticity of segment assembly, and the angle between segments are the main reasons for joint leakage of shield tunnel. In this ...

Just like a recent Construction Toolbox blog highlighted some of the most innovative bridges across the world, tunnel construction in the United States has also been evolving. According to a recent ...

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The shield tunnel for the extension project of the Hengqin Line connecting Macao Special Administrative Region to Zhuhai in South China's Guangdong Province was completed on Friday, marking a further ...

This photo taken on Aug. 21, 2023 shows the shield-tunneling machine at the construction site of China's longest expressway shield tunnel project, in Beijing, capital of China.(Photo: Xinhua) This ...