Sand Drains are Used to

By K Balaji|Updated : October 6th, 2022
  1. Reduce the settlement
  2. Accelerate the consolidation
  3. Increase the permeability
  4. Transfer the load

Sand drains are used to Accelerate the consolidation. By providing numerous drainage channels in the radial direction in addition to vertical drainage, the radial consolidation process accelerates drainage.

Uses of Sand Drains

  • Backfilling these holes with sand of sound quality is done.
  • Deposits of soft marine clay, a very compressible soil type, exhibit considerable differential settlement, potentially resulting in the structure's collapse.
  • Additionally, it is challenging to transport large construction equipment because of this high compressibility and settlement.
  • Sand drains are thus used in this instance to speed up the consolidation process by offering several radial drainage pathways.
  • In addition to allowing for vertical drainage, pore water can be drained radially when sand drains are present.
  • Because soil is more permeable in the horizontal than in the vertical direction, the rate of consolidation increases.
  • The soil quickly becomes stronger with faster consolidation, allowing for quicker work and lower project costs.

Summary:

Sand Drains are Used to 1. Reduce the settlement 2. Accelerate the consolidation 3. Increase the permeability 4. Transfer the load

In order to accelerate the consolidation, sand drains are used. It speeds the consolidation by providing numerous radial drainage pathways.

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