Non-cohesive soils are stronger soils (dry crumbly) and therefore better to work with. Cohesive soil is not so good as there is a lot of water in the soil (clay soil type).
No, the anchor itself will not fail. It is the soil that fails and therefore an engineer must be involved to determine the type, length and spacings of the anchors.
Anchors help with stabilising:
- Surface erosion and scour protection
- Flood protection and slip protection
- Flood storage ponds
- Portable buildings
A drain which is inserted into the embankment (like wick drain) and has a head of an anchor. The drain is inserted into the water pockets to extract the water trapped in the slope. Once all the water is extracted the slope is protected with TRM.