Glossary

The load transferred to a deep foundation unit by negative skin friction, occurring when the soil settles in relation to the foundation unit.

Space provided between wall and interior finish wall for collection of seepage from a slurry wall or structural support.

French: saignée d'écoulement

The lowering of the level of the groundwater table that occurs as a work area is dewatered for construction. Also lowering water behind a dam.

French: affaissement

German: Absenkung

Spanish: descenso del nivel de agua

Italian: sfruttamento

Portuguese: abaixamento

Dutch: neerwaarts richting van een kracht (zoals in negatieve kleef)

French: draguer

German: Naßbagger

Spanish: dragar

Italian: dragare

Portuguese: dragar

Dutch: baggeren

Excavating underwater, usually with floating equipment; it may be an elevator ladder, hydraulic suction, grapple, grab or dipper bucket, scraper, dragline, clam shell or backhoe.

French: dragage

A deposit of loose detrital materials, fragments of rocks, boulders, sand, gravel, clay or other soils driven together by ice, wind or water. See also Glacial Till – Materal deposited by glaciation, usuallly a wide range of particle sizes, not subjected

French: dérive

German: Strömung, Stollen, Bohrlochabweichung

Spanish: deriva, galería

Italian: traiettoria

Portuguese: deriva

French: dérive

German: Strömung, Stollen, Bohrlochabweichung

Spanish: deriva, galería

Italian: traiettoria

Portuguese: deriva

Dutch: afwijking van de verticaal

1. A metal rod driven into a hole bored in timber, the hole having a smaller diameter than the rod; usual purpose is to hold two or more timbers together. 2. In steel erection a tapered “drift pin” is used to align holes at connections.

French: boulon de serrage

A sheeted pit excavated laterally from within a main pit.

French: forer

German: Bohrer, Bohrgerät

Spanish: sondear

Italian: trapano, perforatrice

Portuguese: furar

Dutch: boren