Stress Distribution & Bearing Capacity
Granular / Non-Cohesive Soil
(Based on Terzaghi’s calculation)
The stress distribution in front of a loaded anchor can be modelled using foundation theory. The ultimate performance of an anchor within the soil is defined by the load at which the stress concentration immediately in front of the anchor exceeds the bearing capacity of the soil.
Factors that will affect the ultimate performance of the anchor include:-
Platipus anchors perform exceptionally well in a granular soil, displaying short loadlock and extension characteristics, a broad frustum of soil immediately in front of the anchor and extremely high loads.
Stiff cohesive soils, such as boulder clays, can also give outstanding results. However, weaker cohesive soils, like soft alluvial clays, can result in long loadlock and extension distances and a small frustum of soil in front of the anchor. Consequently these conditions require a larger size of anchor and if possible a deeper driven depth to achieve design loads.
Soft Cohesive Soil
(Based on Skempton’s calculation)
Featured Case Studies
- Gloucester South West By-Pass View Case Study
- Controlled Overtopping For Estuary Banks View Case Study
- US Highway 98, Mobile Alabama View Case Study
- Federal Bureau of Prisons, Williamsburg, SC View Case Study
- Alta Vista Pipeline - City OF Montara, CA View Case Study
- Highway 26 in Calaveras County, CA View Case Study
- Banks Wood, Dowpits Lane, Appleby-In-Westmorland, Cumbria - UK View Case Study
- Eglin Air Force Base, Santa Rosa Island, FL View Case Study