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Which major tunnel collapse was attributed to poor geological mapping and...

This question belongs to Geological Engineering Case Studies And Applied Geological Engineering Projects
Case Studies and Applied Geological Engineering Projects
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Which major tunnel collapse was attributed to poor geological mapping and unsupported face?

Answer & Solution
Correct Answer: Option C
The Nicoll Highway collapse (Singapore, 2004) occurred due to failure of retaining walls in soft marine clay, compounded by poor understanding of site geology and inadequate support.
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