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Boulder buster
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- A heavy, pyramidical- or conical-point steel tool, which may be attached to the bottom end of a string of drill rods and used to break, by impact, a boulder encountered in a borehole. also called boulder cracker.
- An explosive used to break rock fragments by blockholing or mudcapping methods.
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Boulder cracker, английский
Nutcracker, английский
Разг. нос, сходящийся с подбородком (у беззубого) nut-hook палка с крюком для сбора орехов
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Boulder, английский
- A naturally rounded rock fragment larger than 10 in. (25 cm) in diameter; used for crude walls and foundations, generally in mortar.
- In a general sense, any large, usually rounded, fragment of rock lying on the surface or embedded in soil or overburden or in glacial water-deposited materials. in a strict sense, as recommended in the proceedings of the asce, vol. 84, no. sm4, october 1958, a rock fragment usually rounded by weathering or abrasion, having an average dimension of 12 inches or more.
- Валун, валунный камень (диаметром свыше 250 мм)
- Per astm d653, a rock fragment, usually rounded by weathering or abrasion, with a dimension of 12 in. (305 mm) or more.
Boulder (var, английский
Boulder area trails coalition, английский
Boulder blasting, английский
Boulder clay, английский
- The stiff, hard, and usually unstratified clay of glacial origin in which boulders are scattered at random.
- Local british term for till; considered inaccurate because neither
Boulder clay (loam), английский
Boulder cracker, английский
Boulder ditch, английский
A french drain.
Boulder field, английский
(not recommended) use block stream. compare - block field.
Boulder flat, английский
Boulder garden, английский
Boulder gravel, английский
Boulder loam, английский
Boulder motion, английский
Boulder quarry, английский
Boulder stone, английский
Boulder wall, английский
A wall constructed of boulders set in mortar.
Boulderet, английский
Bouldering, английский
The practice of climbing on large boulders. typically this is close to the ground, so protection takes the form of crash pads and spotting instead of belay ropes.
Boulders, английский
- Stones worn and rounded by the attrition of the waves of the sea: the word, on the authority of hunter, was considered a technical term in the fourteenth century, as appears in a warrant of john of gaunt for the repair of pontefract castle—“de peres, appeles buldres, a n`re dit chastel come nous semblerez resonables pur la defense de meisme.”
- Rock fragments greater than 200mm in size.
Blockholing, английский
The breaking of boulders by firing a charge of explosive that has been loaded in a drill hole. blockhouse 1. a fortified structure used to furnish protection against enemy attack in frontier areas, usually at a location of strategic importance; often square or polygonal in plan; typically constructed of hewn timbers having dovetailed notches at the corners to provide strong rigid joints; commonly, an overhanging upper story; often masonry walls on the ground story with log construction above, or entirely of log construction; frequently, a pyramidal roof; usually a few small windows with heavy shutters; loophole openings through the walls permit the firing of guns over a wide range of angles. 2.a reinforced concrete structure that provides shelter against the hazards of heat, blast, or nuclear radiation. blocking 117 block-in-course hammer-dressed stones (which may vary in length) having square faces, laid with close joints, in courses not exceeding 12 in. (30 cm) in height; used in heavy engineering masonry construction. block-in-course bond in a brick arch of concentric rings which is divided in sections, a bond within a section formed through the full depth of the archivolt by a block of bonded brick or by a voussoir inserted at intervals; ties together the concentric rings. blocking 1. pieces of wood used to secure, join, or reinforce members, or to fill spaces between them. 2.a method of bonding two adjoining or intersecting walls, not built at the same time, by means of offsets whose vertical dimensions are not less than 8 in. (20 cm). 3. the sticking together of two painted surfaces when pressed together. 4.an undesired adhesion between touching layers of a block,6 block bridging
Mudcapping, английский
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Cable clip, английский
Boulder cracker, английский
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