tubbing

tub

T0398900 (tŭb)n.1. a. An open, flat-bottomed vessel, usually round and typically wider than it is deep, used for washing, packing, or storing.b. The amount that such a vessel can hold.c. The contents of such a vessel.2. a. A bathtub.b. Informal A bath taken in a bathtub.3. Informal A wide, clumsy, slow-moving boat.4. a. A bucket used for conveying ore or coal up a mine shaft.b. A coal car used in a mine.v. tubbed, tub·bing, tubs v.tr.1. To pack or store in a tub.2. To wash or bathe in a tub.v.intr. To take a bath.

[Middle English, from Middle Dutch or Middle Low German tubbe.]

tub′ba·ble adj.tub′ber n.

Translations

Tubbing

tubbing

[′təb·iŋ] (mining engineering) The watertight cast-iron lining of a circular shaft built up of segments with the space outside the tubbing grouted to add strength and to improve watertightness.

Tubbing

an element of a built-up casing for underground structures such as tunnels and mine shafts. The most common type of tubbing is tunnel lining, which is usually circular. Tubbing is made of cast iron, steel, or reinforced concrete. Cast-iron tubbing is made in the form of a cylindrical shell with a flanged border turned inward. The flange is used for making bolted connections between individual elements and whole rings; it imparts to the tubbing the required rigidity and strength. The thickness of tubbing is determined by tension-compression calculations for various combinations of external loads. The width depends on the stability of the rocks and the cross section of the tunnel. Steel tubbing, which is usually welded, is used as a coupling element for cast-iron tubbing, and in some cases (cast or drop-forged tubbing), as a structural element of the main lining. Reinforced-concrete tubbing structures, or units, are used mainly for subway tunnel lining and are of two kinds, one with a curvilinear contour and the other with a flat surface (trough-shaped).

REFERENCE

Tonneli i metropoliteny, 2nd ed. Moscow, 1975.

V. P. VOLKOV

单词	tubbing
释义	tubbing tub T0398900 (tŭb)n.1. a. An open, flat-bottomed vessel, usually round and typically wider than it is deep, used for washing, packing, or storing.b. The amount that such a vessel can hold.c. The contents of such a vessel.2. a. A bathtub.b. Informal A bath taken in a bathtub.3. Informal A wide, clumsy, slow-moving boat.4. a. A bucket used for conveying ore or coal up a mine shaft.b. A coal car used in a mine.v. tubbed, tub·bing, tubs v.tr.1. To pack or store in a tub.2. To wash or bathe in a tub.v.intr. To take a bath. [Middle English, from Middle Dutch or Middle Low German tubbe.] tub′ba·ble adj.tub′ber n. Translations IdiomsSeetub Tubbing tubbing [′təb·iŋ] (mining engineering) The watertight cast-iron lining of a circular shaft built up of segments with the space outside the tubbing grouted to add strength and to improve watertightness. Tubbing an element of a built-up casing for underground structures such as tunnels and mine shafts. The most common type of tubbing is tunnel lining, which is usually circular. Tubbing is made of cast iron, steel, or reinforced concrete. Cast-iron tubbing is made in the form of a cylindrical shell with a flanged border turned inward. The flange is used for making bolted connections between individual elements and whole rings; it imparts to the tubbing the required rigidity and strength. The thickness of tubbing is determined by tension-compression calculations for various combinations of external loads. The width depends on the stability of the rocks and the cross section of the tunnel. Steel tubbing, which is usually welded, is used as a coupling element for cast-iron tubbing, and in some cases (cast or drop-forged tubbing), as a structural element of the main lining. Reinforced-concrete tubbing structures, or units, are used mainly for subway tunnel lining and are of two kinds, one with a curvilinear contour and the other with a flat surface (trough-shaped). REFERENCE Tonneli i metropoliteny, 2nd ed. Moscow, 1975. V. P. VOLKOV LegalSeeTub
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