Glossary

In the direct circulation method, drilling fluid is pumped down a hollow drill pipe, around the drill bit, and back to the surface in the annular space around the drill pipe and the cuttings are carried to the surface by the flow. In the reverse circulat

Excavation bucket operated by cables or hydraulic rams.

French: benne preneuse à deux coquilles

German: Greifer

Spanish: cuchara bivalva

Italian: benna bivalve

Portuguese: escavadora de mandibulas

Dutch: schelpvormige grijper

A soil material with a cohesive strength that increases or decreases with changes in moisture. The permiability of clay is very low. It is difficult to compact when wet, and impossible to drain by ordinary means.

French: argile

German: Ton

Spanish: arcilla

Italian: argilla

Portuguese: argila

Dutch: klei

A percussion boring tool used in clay soils.

French: coupeuse d'argile

Also called clean-out bucket. A specially designed drilling bucket to clean the base of wet-processed bored piles or drilled shafts

A piece of timber nailed to each corner of a timber sheeted pit to hold the adjoining timber boards.

French: clavette/liteau

French: représentant technique du client

German: Technischer Bauherrnvertreter

Italian: rappresentante tecnico del cliente

Portuguese: representante técnico do cliente

Dutch: opzichter

Specification which describes the end product and how it is to be achieved. Usually used for permanent walls

French: sol à grunulométrie uniforme

German: gleichförmiger Boden

Spanish: suelo de granulometría uniforme

Italian: ben gradato

Portuguese: solo de granulometria uniforme

Dutch: grond met uniforme korrelverdeling

French: à grains grossiers

German: grobkörnig

Spanish: de grano grueso

Italian: a grana grossa

Portuguese: grosseiro

Dutch: grofkorrelig