Drill Drain

Horizontal drilled drainage

Description

The Drill Drain filter nail is a system that utilises the TITAN 40/27 to inject a filter material with the optimum permeability coefficient, allowing slope dewatering. The control of slope seepage water reduces hydrostatic pressure, whilst retaining the positive soil properties. The Drill Drain is installed upwards into the slope, drilling up to a meter into the water bearing strata. The system allows a reduction in pore water pressure whilst maintaining the soils properties.

BENEFITS

  • Control of slope seepage water
  • Retaining wall without hydrostatic pressure
  • Retention of positive soil properties
  • Reduction of pore water pressure
  • No ice pressure during periods of freezing
  • Retention of cohesion
  • Retention of internal friction
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