Dewatering and Groundwater Control

Pre-drainage dewatering to lower the groundwater level below proposed subgrade is a critical first stage of many construction projects where excavation at depth is required. Deep wells, wellpoints and ejectors are the primary tools of pre-drainage. Groundwater control by cut-off or containment can be achieved by both physical and geotechnical methods. Moretrench’s range of dewatering and groundwater control methods allows selection of the optimal approach as a function of the subsurface conditions and project requirements.

Select Issue » Contaminant Cut-off & Containment Dam Rehabilitation & Reconstruction Excavation Below the Water Table Excavation Support Seepage High Volume Inflow Through Rock Seepage into Basements & Underground Structures Soft Ground Tunneling Under-Dam Seepage Vertical Groundwater Barriers
Slurry Trenches - - - - - -
Jet Grouting - - -
Hydrodynamic Barriers - - - - - - - -
Deep Wells - - - - - -
Wellpoints - - - - - -
Ejectors - - - - - -
Rock Curtain Grouting - - - -
Secant Pile Walls - - - - - - - -
Steel Sheetpiling - - - - - - - -
Permeation Grouting - - - - - - -
Urethane Grouting - - - - - - -
Hot Bitumen Grouting - - - - - - - -