A type of drill bit that has three conical rollers equipped with rock-cutting teeth. Also called a Rock Roller bit
French: tricône
Trip
1. A block in the leads of a drop hammer causing the release of the weight at a predetermined height. 2. Mechanical device used in diesel hammer to both pick up the hammer and to start the hammer. Also called Trip Block or Tripping Device.
French: 2. appareil déclencheur
Truss Leads
Pile hammer lead fabricated with four main chords in a generally rectangular shape with the chords being connected by diagonal bracing. May have internal diagonals to form a tetrahedral design. The pile hammer is mounted in front of and rides on two of
Tube Pile
A steel pipe pile.
tube-à-manchettes
Pipe with flexible rubber sleeves that cover pre-drilled holes in a pipe at specific intervals. Pressurized grouting through a packer forces grout through the holes past the flexible rubber sleeves into the ground outside for the purposes of strengthening
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