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Bit, 1. drilled-in caisson a composite foundation column; consists of a heavy wall pipe which is concrete-filled; the upper end is locked into the structure, and the lower end is secured in a socket in rock. drilled pier, drilled pile a concrete pier or p
| Глоссарий по архитектуре и конструкциям |
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Drill bit, английский
- One of a number of different types of detachable cutting tools used to cut circular holes in rock, wood, metal, etc. also called drill crown in africa and england.
- The cutting tool at the bottom of the drill pipe which bores into the formation. there are many different types and styles of cutting faces and materials used for drill bits, and these are tailored for specific types of rock, or formations. drill bits range in size from 3-3/4” (95.25 mm) to 36” (914.4 mm), and drill bit sizes are limited by the kind of casing pipe used to keep the well from collapsing. roller cone-type and pdc (polycrystalline diamond compact)-type bits are most commonly used.
- The cutting or boring element used to access oil or gas in the drilling process. not only are most bits roller-cone bits, but the drill bit also typically includes both the cutting element and the circulating element.
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Coated macadam, английский
Drill bit, английский
- One of a number of different types of detachable cutting tools used to cut circular holes in rock, wood, metal, etc. also called drill crown in africa and england.
- The cutting tool at the bottom of the drill pipe which bores into the formation. there are many different types and styles of cutting faces and materials used for drill bits, and these are tailored for specific types of rock, or formations. drill bits range in size from 3-3/4” (95.25 mm) to 36” (914.4 mm), and drill bit sizes are limited by the kind of casing pipe used to keep the well from collapsing. roller cone-type and pdc (polycrystalline diamond compact)-type bits are most commonly used.
- The cutting or boring element used to access oil or gas in the drilling process. not only are most bits roller-cone bits, but the drill bit also typically includes both the cutting element and the circulating element.
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