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A diaphragm wall is constructed using — Answer & Solution | Civexa

Foundation Engineering · Earth Retaining Structures

Earth Retaining Structures MCQ with answer and solution

A diaphragm wall is constructed using

Solution

Concept

Diaphragm wall construction

Step-by-step solution

1. Diaphragm walls are excavated with hydraulic grabs or trench cutters under bentonite slurry.

Explanation

Trench cutters (hydromills) cut the panels.

Why the other options are wrong

Augers make piles; backhoes and draglines cannot make deep panels.

Shortcut

Diaphragm wall = trench cutter/grab.

Correct answer: B) Hydraulic trench cutters

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