In this section, you will find technical information about the various dewatering methods we offer, including horizontal dewatering, deepwells, wellpoints, ejectors and pressure relief wells.
A wellpoint is a small-diameter, closely-spaced shallow well, which offers a highly economic and versatile method of groundwater control where drawdown requirements onsite are less than 5-6 metres in depth.
Horizontal Dewatering is typically used in projects with shallow linear configurations, e.g. railway lines, motorways, etc.
Deepwells are used for dewatering of excavations when the drawdown is required below 6 metres in depth and the permeability of the targeted soil is moderate to high.
Where groundwater must be lowered more than six metres below ground in lower permeability soils, such as silt or fine sand, ejectors often offer the best dewatering solution.
