What is the maximum thickness layer for compaction of an embankment?

The maximum thickness layer for compaction of an embankment is typically around 150 mm. This specific thickness is often recommended because it allows for effective compaction to be achieved without compromising the integrity of the material being compacted.

When layers are too thick, it becomes difficult for compaction equipment to properly affect the entire layer, leading to poor density and potential voids within the embankment. A layer thickness of 150 mm strikes a balance, enabling the compaction equipment to adequately reach and densify the material throughout the layer, which ensures a stable and uniform embankment structure.

In practical engineering scenarios, adhering strictly to this thickness guideline helps prevent issues related to settlement, stability, and overall performance of the embankment when subjected to loads. Therefore, the 150 mm thickness is a widely accepted standard in the field of geotechnical engineering.