www.kreo.net/glossary/

Definition

Buoyant uplift is the force of water or liquefied soil that tends to raise a building foundation out of the ground.

Purpose

Understanding and counteracting buoyant uplift is crucial in the design and construction of foundations, especially in areas prone to flooding or with high water tables. This force can lead to structural instability and damage if not properly managed.

Examples of Use

1. Flood-Prone Areas: Designing foundations with sufficient weight and anchoring to resist uplift forces in regions susceptible to flooding.
2. Basement Construction: Ensuring that basement walls and floors can withstand the upward pressure from groundwater.
3. Marine Structures: Foundations for structures near or on water bodies are designed to resist buoyant uplift forces.

Related Terms

• Hydrostatic Pressure: The pressure exerted by a fluid due to its weight, contributing to buoyant uplift.
• Anchoring: Techniques used to secure a structure to the ground to resist uplift forces.
• Water Table: The level below which the ground is saturated with water, influencing buoyant uplift.

Notes

Engineers must consider buoyant uplift during the design phase and implement measures such as increased foundation weight, anchoring systems, or drainage solutions to counteract this force.