Question:
A tunnel with vertical walls and arched crown is constructed through a set of sedimentary beds. The thickness of individual beds is significantly less than the wall-height of the tunnel. For which of the following conditions, one of the tunnel walls becomes unstable?
A tunnel with vertical walls and arched crown is constructed through a set of sedimentary beds. The thickness of individual beds is significantly less than the wall-height of the tunnel. For which of the following conditions, one of the tunnel walls becomes unstable?
Updated On: Oct 1, 2024
- The tunnel axis is horizontal and the beds are horizontal
- The tunnel axis is parallel to the strike of beds and the beds dip 45⁰ – 60⁰
- The tunnel axis is parallel to the strike of beds and the beds are vertical
- The tunnel axis is perpendicular to the strike of beds and the beds are vertical
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The Correct Option is B
Solution and Explanation
The Correct answer is (B): The tunnel axis is parallel to the strike of beds and the beds dip 45⁰ – 60⁰The tunnel axis is parallel to the strike of beds and the beds dip 45⁰ – 60⁰
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