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Transportation

Journal Ashtead's Journal: From metro railway to rollercoaster 5

This morning, it was discovered that the earth underneath the metro tracks at Gjønnes station had shifted upwards. Picture here. The vertical alinement here used to be level -- now one track has a vertical curve like a hilltop, and the other is twisted sideways inwards towards the platform. The overhead wiring hangs in tatters -- some neighbor had seen a flash and heard a bang sometime during the night when the 750 V DC supply had shorted out --

There is a large mound of deposited rocks from a new railway tunnel that is being built nearby, and the weight of this eventually pushed the clay in the ground here downwards and made it move upwards under the metro track and Gjønnes station. This whole area is old seabed, from back when glaciers and ice had held the landmasses down.

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From metro railway to rollercoaster

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