Glossary

French: fracturation hydraulique (injection de claquage)

German: Hydraulische Rissbildung (Claquage)

Italian: fratturazione idraulica

Portuguese: fracturação hidráulica

Dutch: hydrraulisch breken

Similar to Clamshell Grab. A grab operated by hydraulic action, used for excavation of diaphragm walls and barrettes

French: grappin

Proprietary cast-steel driving tip with cutting “teeth” for H-piles.

1. Most commonly a very dense heterogeneous mass of clay, sand and gravel of glacial drift origin. 2. The hard stratum of consolidated earth underlying surface soil, too hard for roots to penetrate.

French: sol dur impénétrable

German: fester Boden oberhalb von gewachsenem Fels

Spanish: costra cementada, "hardpan"

Italian: hardpan, livello molto cementato, crosta dura

Portuguese: rocha alterada

Dutch: dichte tussenlaag grond

French: installation de transporte

German: Transportgeräte

Spanish: material de transporte

Italian: attrezzatura d'avanzamento

Portuguese: equipamento de transporte

Dutch: diepladers

French: risque

German: Gerfahr

Spanish: riesgo

Italian: pericolo, rischio

Portuguese: risco

Dutch: levensgevaarlijke situatie

A rolled-steel section with web and flanges nearly the same thickness. The width and depth are approximately equal. See also Steel H-Pile

French: poutre en double T/poutre en I

A steel wide-flange or H-beam used in place of leads. The hammer engages and slides upon one flange of the beam through the use of spud clips bolted to the hammer. Also called Monkey Stick, Spud lead.

1. Shortened form of the phrase “pressure head”, referring to the pressure resulting from a column of water or elevated supply of water. 2. The top of a pile.

Top section of a fixed, semi-fixed or extended pile driver lead with sheaves for carrying both crane hosting drums lines, holding pile and hammer, over the top of leads.

French: coin de serrage