Planar and horizontal drainage

Planar and horizontal drainage is a useful technique to consolidate soils weakened by the presence of water. Removing the water, by inserting a suitable drainage path can provide long-term improvements to that soil. Traditionally, drainage was provided by gravel or other natural materials. However, the long-term performance of gravels can be unknown or compromised. 

Modern solutions and materials. The modern solution is to use a drainage geocomposite; MacDrain drains fluids underground from one place to another. Geotextiles attached to the drainage core on one or both sides stop the materials or soils from being drained and as a result, potentially clogging the drainage core or collection pipes. They are designed to replace traditional drainage materials such as gravels and sands.

Factors to consider. The selection of an appropriate MacDrain for 'horizontal' or planar drainage geocomposite depends on a number of factors: 

• The overburden expected 

• The expected flow discharge required 

• The type of material / soil to be drained (clean, contaminated etc.) 

• Hydraulic gradient 

• Dimensions of the area to be drained 

Our state of the art software for resolving water-management challenges. Using our state of the art design software, MacFLOW, we assist clients in overcoming their water-management problems, helping to consolidate soils, and reducing settlements. The best value solution should not only address technical and economic problems, but also the installation speed and efficiency.