The installation of band drains inevitably creates smear zones, areas of disturbed soil surrounding the drains. This disturbance leads to increased soil compressibility and a subsequent reduction in permeability. Essentially, the soil surrounding the band drain is remolded during installation, compromising the drain’s effectiveness.
The reduced permeability in the smear zone directly impacts the consolidation process, significantly increasing the time required for completion. This delay can affect project timelines and necessitates careful consideration of smear effects during the design and installation of band drains.
admin Changed status to publish July 30, 2024