oa Civil Engineer in South Africa - Rockfill and gabions for erosion control
Channels and embankments may be stabilized with rockfill linings. Rockfill resists high velocities and waves and insulates underlying soil. Criteria for stability of stones in flowing water are established. Friction loss of water flowing over rockfill is evaluated. The velocity reduction in rockfill is of use in reducing erosion of underlying soil and for minimizing the effect of wave action. Head loss due to cascading down stepped gabion slopes can also be employed for erosion control.
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