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Annular thickness
| Глоссарий по проходческим щитам (тоннелингу) |
The radial distance between the excavated radius created by the gauge cutter and the outside radius of the jacking pipe. the radial distance is equal to the overcut (gauge cut) plus the shield cut.
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Annular, английский
- Кольцевой
- Said of a ring-shaped structure or object.
- Resembling an annulus or ring. an annular eclipse takes place when the apparent diameter of the moon is less than that of the sun, and a zone of light surrounds the moon while central.
- Кольцевой, кольцеобразный
Annular (blowout) preventer, английский
Annular bearing, английский
Annular borer, английский
Any tubular tool used to obtain a cylindrical core as a sample. compare core drill, diamond drill, shot drill.
Annular casing pump, английский
Насос с кольцевым дренажным, сливным отводом
Annular coil, английский
See coil, encircling.
Annular conductive passage, английский
Кольцевое пространство между наружной и внутренней трубами в двойных бурильных трубах `
Annular crypt, английский
A crypt in a church that has a semi-circular ambulatory leading to the main chamber, which contains a relic of a saint.
Annular drainage pattern, английский
A drainage pattern in which subsequent streams follow a roughly circular or concentric path along a belt of weak rocks, resembling in plan view, a ring-like pattern where the bedrock joints or fracturing control the parallel tributaries. it is best displayed in streams draining a maturely dissected granitic or sedimentary structural dome or basin where erosion has exposed rimming sedimentary strata of greatly varying degrees of hardness, as in the red valley which nearly encircles the domal structure of the black hills, sd. sw & gg & wa
Annular filler, английский
Material for grouting the annular space between the host pipeline and the lining system.
Annular flange, английский
Кольцеобразный фланец
Annular flow, английский
Annular friction pressure, английский
Давление кольцевого трения
Annular groove preparation, английский
Annular kiln, английский
Annular molding, английский
Any molding that is circular in plan, such as the torus at the base of a column.
Annular nail, английский
A nail with circular ridges around its shaft; provides greater holding power than a nail without such ridges.
Annular piston, английский
Кольцевой шток
Annular piston meter, английский
Annular premixed flame, английский
Кольцевое цилиндрическое пламя в гомогенной смеси
Annular scupper, английский
A contrivance for fitting scuppers so that the whole can be enlarged by a movable concentric ring, in order that a surcharge of water can be freely delivered; invented by captain downes, r.n.
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Differential cut, английский
The spiral, screwlike pattern created on the excavated surface as the gauge cutter is advanced while being rotated around the bored periphery of the cutter wheel.
Gauge cut, английский
The outermost projection of the excavation, measured as a diameter. the gauge cut is subject to cutter wear and to the differential cut.
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