Write any four methods of improving bearing capacity.

Write any four methods of improving bearing capacity.
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1 Answer

Answer :

Methods of improving bearing capacity of soil.

i. By increasing depth of foundation:

At deeper depths the over burden pressure on soil is higher hence soil is more compacted at deeper depth. As a result it shows higher bearing capacity.

ii. By draining sub soil water:

With reduction in percentage of water content of soil the bearing capacity increases.

iii. By compacting soil:

If we compact soil using appropriate method then there will be increase in its density and shear strength. As a result bearing capacity also increases.

iv. By increasing width of foundation:

By increasing width of foundation, the intensity of load is decreased and on the same soil can take more loads.

v. By confining soil:

In this method soils are enclosed with the help of sheet piles. This confined soil is further compacted to get more strength.

vi. By replacing poor soil:

In this method poor soil first removed and then the gap is filled up by superior material such as sand, stone, gravel or any other hard material.

vii. By using grouting material:

In this method poor soil bearing strata is hardened by injecting the cement grout under pressure. 
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