🇨🇳 #PDChina | The 460-tonne cutter of China's homemade tunnel boring machine (#TBM) Dinghai has been installed at the construction site of the world's longest undersea high-speed rail tunnel, which will stretch about 16.18 km along the 76.4-km Ningbo-Zhoushan Railway in E China's Zhejiang. https://t.co/Y73yIfKogm
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🇨🇳 #PDChina | A #MadeInChina tunnel boring machine (#TBM) with an excavation diameter of 13.8 meters, was deployed Wed at a tunnel in north China's Tianjin along the 250km/h Beijing-Tianjin intercity #railway, which has a shield drilling section spanning 7,720 meters. #ChinaEngineering https://t.co/2wkhPyLo9q
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🇨🇳 #PDChina | A China-developed 105-m-long tunnel boring machine (#TBM) has started operation to help construct a 7.898-km section on Metro Line 7 in Santiago, #Chile. The Chinese-built project will reduce travel time between two terminals by 54% and benefit 1.36 mln locals upon completion. https://t.co/SjzKZckjzd
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🇨🇳 #PDChina | A 163-m-long tunnel boring machine (#TBM) rolled off production line Sunday in E China's Shandong, expecting to help drill the world's largest diameter shield tunnel under construction in the province. The TBM, with 306 blades on its cutter, has an excavation diameter of 17.6 m. https://t.co/OWtsWHnuEW
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🇨🇳 #PDChina | A 163-m-long tunnel boring machine (#TBM) rolled off production line Sunday in E China's Shandong, expecting to help drill the world's largest diameter shield tunnel under construction in the province. The TBM, with 306 blades on its cutter, has an excavation diameter of 17.5 m. https://t.co/yzjufsr7ZJ
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🇨🇳 #PDChina | A 130-m-long tunnel boring machine (#TBM) with an excavation diameter of 14.3 m has rolled off the production line in Hangzhou, E China's Zhejiang, set to be used for constructing the west tunnel of the high-speed railway station at Hangzhou Xiaoshan International Airport. https://t.co/o5N8SlC8Cr
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