Mumbai: Central Railway’s micro tunneling work at Masjid station hits roadblock
Problem is the geology of rocks below the rail tracks unexpected by the Central Railway officials. https://www.freepressjournal.in/mumbai/mumbai-central-railways-micro-tunneling-work-at-masjid-station-hits-roadblockChina: Construction complete on world's highest altitude 13 km long Gokarla Tunnel
...Zhanang county in the Tibet autonomous region on Wednesday after 7 years of construction. High altitude, less oxygen, cold, length and difficult geology took 7 years instead of norma...Iran: Prediction of earth pressure balance for EPB-TBM using machine learning algorithms
...ction of earth pressure balance for EPB-TBM using machine learning algorithms Hanan Samadi 1, Jafar Hassanpour 1, Jamal Rostami 2 School of Geology, College of Science, Universi...Hitting unexpected caverns when your TBM is happily boring away!
I've seen this article about a Robbins TBM boring a water tunnel in a geology with limestone and powdery clays in Cassis, France. It hits more than once uncharted cavern...
cover tunnel photo by: Matt Brown from London, England / CC BY
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