China makes new progress in manufacturing TBMs with super-size main bearing
China produce super size main bearing for first time. Main bearing diameter 8.01 me...struction Co (CCCC), and the Institute of Metal Research of Chinese Academy of Sciences together produces this main b...China Railway Group has most patents in tunnel safety monitoring
Tunnel safety monitoring helps to rescue people inside a tunnel and to maintain air quality and control spread of smoke in case of fire or a disaster. https://www.mining-technology.com/data-insights/innovators-tunnel-safety-monitoring-mining/?cf-viewChina Railway Group has most patents in tunnel safety monitoring
Tunnel safety monitoring helps to rescue people inside a tunnel and to maintain air quality and control spread of smoke in case of fire or a disaster. https://www.mining-technology.com/data-insights/innovators-tunnel-safety-monitoring-mining/?cf-view
cover tunnel photo by: Matt Brown from London, England / CC BY
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