Underground water stopping / Stopping groundwater infiltration within excavations

Water infiltration can negatively impact a concrete structure, or adversely affect the progress of an excavation. Examples are those situations where significant water heads cause high hydrostatic pressure which can be a risk for construction operations. Water leaks may also transport contaminants, in or from a specific location. The prolonged effect of leaks may be the reason of erosion and instability ultimately causing the collapse of structures such foundations, slabs, thickener tanks, walls, and roads.

Stopping groundwater infiltration
Stopping groundwater infiltration

Green Orange Construction Professionals specializes in stopping water infiltrations through localized specialty grouting. By changing the permeability of soils or sealing cracks in concrete we can control groundwater infiltration. We have been called on projects where water infiltration was causing settlement and cracks in the slab of a thickener tank, or where water infiltration was washing away backfill soil from a large structure. In other instances, the geotechnical investigations revealed the presence of water, enabling us to avoid the water infiltration within the excavation by the installation of a grouted curtain wall as preventative waterproofing method. Water inflow during excavation operations are also a common situation, where water was flooding a jobsite at high flow rates. Maintenance projects where existing concrete structures presents cracks that needed to be sealed to stop water leaks into basements and garages are other common applications.

Stopping groundwater infiltration
Stopping groundwater infiltration

We typically use different variations of chemical grouts which are capable of curing in a short time span and perform well even in the presence of flowing water. Different types of chemical grouts are chosen based on the soil conditions and water inflow, water pressure, and other geological and hydrological assessments.

Finally, as waterproofing technique we offer also pipes and tunnels rehabilitation through reline. Pipes are at risk of leaks, blockage, and corrosion: we can provide cost- and time-effective new lining rather than incurring expensive and inconvenient pipe replacements in which timely demolitions and excavation are often required. We use cutting-edge technologies such cold-cure UV-Led relining, epoxy spray lining, cement-base linings, and pipe jacking and shotcrete.

Void filling
Void filling


  • Soil grouting
  • Specialty grouting
  • Chemical grouting
  • Cementitious grouting
  • Soil impermeabilization
  • Geomembranes installation
  • Shotcrete application
  • Concrete pumping
  • Void filling


  • Controlling water leaks and groundwater infiltrations by decreasing soil permeability
  • Stopping underground water infiltrations
  • Ground improvements
  • Pipe relines
  • Tunnel relines
  • Tunnel primary lining
  • Temporary shotcrete linings
  • Backfill grouting
  • Contact grouting
  • Void filling
  • Grouting of abandoned lines
  • Fracture sealing
  • Waterproofing of dams, ponds, tunnels and foundations