In counterfort type retaining wallsi) the vertical slab is designed as a continuous slabii) the heel slab is designed as a continuous slabiii) the vertical slab is designed as a cantileveriv) the heel slab is designed as a cantileverThe correct answer is

In counterfort type retaining walls
i) the vertical slab is designed as a continuous slab
ii) the heel slab is designed as a continuous slab
iii) the vertical slab is designed as a cantilever
iv) the heel slab is designed as a cantilever
The correct answer is

A

(i) and (ii)

B

(i) and (iv)

C

(ii) and (iii)

D

(iii) and (iv)

In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on
i) bottom face near counterfort
ii) top face near counterfort
iii) bottom face near centre of span
iv) top face near centre of span
The correct answer is

A

Only (i)

B

Only (ii)

C

Both (i) and (iv)

D

Both (ii) and (iii)

In a counterfort retaining wall, the main reinforcement is provided on the
i) bottom face in front counterfort
ii) inclined face in front counterfort
iii) bottom face in back counterfort
iv) inclined face in back counterEort
The correct answer is

A

(i) and (ii),

B

(ii) and (iii)

C

(i) and (iv)

D

(iii) and (iv)

In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided oni) bottom face near counterfortii) top face near counterfortiii) bottom face near centre of spaniv) top face near centre of span The correct answer is

A

only (i)

B

only (ii)

C

both (i) and (iv)

D

both (ii) and (iii)

In a counterfort retaining wall, the main reinforcement is provided on thei) bottom face in front counterfortii) inclined face in front counterfortiii) bottom face in back counterfortiv) inclined face in back counterEortThe correct answer is

A

(i) and (ii),

B

(ii) and (iii)

C

(i) and (iv)

D

(iii) and (iv)

In a counterfort retaining wall, the main reinforcement in the stem at mid span is provided on

A

Front face only

B

Inner face only

C

Both front face and inner face

D

None of the above

In counterfort retaining walls, the main reinforcement in the stem at support is

A

Not provided

B

Provided only on inner face

C

Provided only on front face

D

Provided both on inner and front faces

The design of heel slab of a retaining wall is based on the maximum bending moment due to:

A

Its own weight

B

Weight of the soil above it

C

Load of the surcharge, if any

D

All the above

In a cantilever retaining wall without a heel slab

A

Thickness of the stem is kept same throughout

B

Base slab is made 10 cm thicker than the stem

C

Width of the base slab is kept 0.7 time the total height of the wall

D

All the above

If ‘H’ is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is

A

0.3 H

B

0.4 H

C

0.5 H

D

0.7 H

In counterfort type retaining wallsi) the vertical slab is designed as a continuous slabii) the heel slab is designed as a continuous slabiii) the vertical slab is designed as a cantileveriv) the heel slab is designed as a cantileverThe correct answer is

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