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The speedy and cost-effective method for excavating long tunnel in hard and… — Answer & Solution | Civexa

Building Construction · Tunnel Construction

Tunnel Construction MCQ with answer and solution

The speedy and cost-effective method for excavating long tunnel in hard and compact rock is

Solution

Concept

TBM

Step-by-step solution

1. A TBM is fast and economical for long tunnels in hard rock.

Explanation

TBMs bore continuously.

Why the other options are wrong

Others are for soft ground.

Shortcut

TBM = long hard-rock tunnels.

Correct answer: A) Tunnel boring machine

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