What foundation type is used specifically when the soil has high bearing capacity?

What foundation type is used specifically when the soil has high bearing capacity?

• A. Isolated footing
• B. Strip footing
• C. Spread footing
• D. Raft footing

Answer: (B)

The most appropriate foundation type used specifically when the soil has a high bearing capacity is the strip footing. Strip footings are continuous foundations that support load-bearing walls and are ideal for situations where the soil can adequately support the weight of the structure. This type of footing is efficient in distributing the weight along its length, which is beneficial in scenarios where there is sufficient soil strength. High bearing capacity soils allow for the use of strip footings because they can adequately handle the loads applied without excessive settlement or failure. The design of strip footings can be straightforward and cost-effective, especially when building walls over continuous ground that possesses a solid foundation. Although isolated footings can also be used on strong soils, they are designed for individual columns rather than continuous wall support. Spread footings serve a similar purpose to isolated footings but are typically broader to distribute loads from columns or walls. Raft footings, on the other hand, are utilized in scenarios where soil conditions are poor or where there is a risk of uniform settlement. These foundation types focus more on load distribution in less-than-ideal soil conditions, differing from the beneficial applications of strip footings on high bearing capacity soil.

The most appropriate foundation type used specifically when the soil has a high bearing capacity is the strip footing. Strip footings are continuous foundations that support load-bearing walls and are ideal for situations where the soil can adequately support the weight of the structure. This type of footing is efficient in distributing the weight along its length, which is beneficial in scenarios where there is sufficient soil strength.

High bearing capacity soils allow for the use of strip footings because they can adequately handle the loads applied without excessive settlement or failure. The design of strip footings can be straightforward and cost-effective, especially when building walls over continuous ground that possesses a solid foundation.

Although isolated footings can also be used on strong soils, they are designed for individual columns rather than continuous wall support. Spread footings serve a similar purpose to isolated footings but are typically broader to distribute loads from columns or walls. Raft footings, on the other hand, are utilized in scenarios where soil conditions are poor or where there is a risk of uniform settlement. These foundation types focus more on load distribution in less-than-ideal soil conditions, differing from the beneficial applications of strip footings on high bearing capacity soil.