👉Gravity Retaining Wall

💫Construction Components and Cross Section

🚧Important Question And Answer For Civil Engineering Student

1. What is a gravity retaining wall?

A gravity retaining wall is a structure that resists lateral earth pressure mainly by its own self-weight.

2. What are the main components of a gravity retaining wall?

Main components are:-

Stem (wall body)
Base footing
Heel
Toe
Backfill soil
Drainage layer
Weep holes
Foundation soil

3. What is the function of the heel in a retaining wall?

The heel is the rear part of the base slab that helps resist overturning and increases stability.

4. What is the function of the toe?

The toe is the front part of the footing that improves wall balance and sliding resistance.

5. Why are weep holes provided in retaining walls?

Weep holes release trapped water behind the wall and reduce hydrostatic pressure.

6. What materials are commonly used for gravity retaining walls?

Common materials:-

Plain concrete
Reinforced concrete
Stone masonry
Brick masonry

7. What forces act on a gravity retaining wall?

Main forces are:-

Earth pressure
Self-weight of wall
Water pressure
Surcharge load
Seismic force (if applicable)

8. What causes failure of a retaining wall?

Possible failures:-

Sliding failure
Overturning failure
Bearing failure
Excessive settlement

9. Why is drainage important behind retaining walls?

Proper drainage prevents water buildup, reduces pressure, and improves wall stability.

10. What is the main advantage of a gravity retaining wall?

It has simple construction, high durability, and good stability for small to medium heights.

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