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List of products by author: P. Schubert

Showing 1 - 3 of 3 documents
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    Abstract: Economical and safe tunnelling requires capturing, describing and reasonably rating information on the actual ground conditions also termed as ground characterisation In conventional tunnelling, at least short time frames are available each round where engineering geologists may access the tunnel face and acquire geometric and semantic data thereof. For example, geometric data include among...

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    Abstract: The 8.8 km long Bossler tunnel is a twin-tube railway tunnel near Stuttgart. A TBM drive was initially considered impossible in the centre section of the tunnel due to weak rock. Using the benefits of an intermediate access tunnel constructed in advance to the critical sections of the tunnel, a value engineering approach was developed which allowed a reassessment of the ground parameters...

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    Abstract: A 100 meter long tunnel in mixed face moraine and rock, below the ground water level, was the solution when the southern end of the Joberg tunnel had to be located in an area with high risk of rock fall. The rock fall risk from the steep mountain side was evaluated to be so high that an open cut was not an option. Since a rail tunnel in clay was constructed in Trondheim in 1942, using...

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Showing 1 - 3 of 3 documents