Glossary

The upper surface of the zone of saturation in the ground.

French: surface de le nappe souterraine

A confined body of water under a pressure which gives a level of hydrostatic pore pressure (phreatic elevation) higher than the ground surface or the normal groundwater table.

French: effet de groupe

German: Gruppeneffekt

Spanish: efecto de grupo

Italian: effetto di gruppo

Portuguese: efeito de grupo

Dutch: groepsaktie

A mixture of cement and water or chemicals: for filling voids it is made very thin for pumping under pressure. Rock flour, clay, or sand may be added to cement grout for economy. Cement Grout can be used to improve the tips of piles, and as an adhesive

French: lait de ciment / coulis

German: Verpreßmörtel / Zementmörtel

Spanish: lechada (para inyección)

Italian: cemento liquido/ iniezione

Portuguese: calda / calda de cimento

Dutch: grout

French: voile d'injection

German: Dichtungsschleier

Spanish: pantalla de inyección

Italian: cortina d'iniezione

Portuguese: cortina de injecção

Dutch: gegroute wand

The ratio of the actual volume of grout placed in an ACIP pile, to the theoretical volume of the shaft. Usually expressed as a percentage. See also Overtake.

The pumping pressure maintained when placing grout in an ACIP pile.

The moment at which grout is observed on the auger flights at the ground surface as the auger is being withdrawn during the placement of grout in an ACIP pile.

French: injecter

German: Zementmörtel injezieren

Spanish: inyectar

Italian: iniettare

Portuguese: injectar

Dutch: grouten

1. Shafts constructed by pumping grout through a hollow-stem auger. Also called Augered cast-in-place (ACIP) Auger Pressure Grouted (APG) or Auger pressure grouted displacement (APGD) piles. 2. Drilled shafts that have had grout pumped in at high-pressure