LOADING
Question
Match List-I (Suitable condition) with List-II (Foundations) and select the correct answer:

List-I

List-II

A. When structual load is uniform and soil is soft clay, made up of marshy land

1. Footings

 

B. When structural load is heavy & /or soil having low bearing capacity for considerable depth 2. Piles
C. When soil is having good bearing capacity at shallow depth and structural load is within permissible limit 3. Raft
D. When structural load of bridge is to be transferred through soil to bed rock 4. Wells or piers

Codes:

A    B    C    D

A.
3    1    2    4
B.
4    1    2    3
C.
4    2    1    3
D.
3    2    1    4
Answer ( Option D)

3    2    1    4

Solution

(1) When structural load is less and within permissible limits and the soil just below ground surface have good bearing capacity, shallow footing may be provided.
(2) Piles: When soil has low bearing capacity upto considerable depth, then piles are provided to transfer loads to deep firm strata.
(3) Raft: Raft (mat) foundation is provided when the loads are heavy and the soil is highly compressible and non-homogeneous.
(4) Wells/Piers: Wells/piers are constructed to transfer heavy axial or lateral loads to a deep stratum below ground surface.
Hence, correct option is (d).

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