shortwalln.

Etymology: < short adj. + wall n.¹Previous versions of the OED give the stress as: ˈshortwall.

Mining.

A short coalface. Frequently attributive, denoting (equipment designed for) a method of mining in which shortwalls are worked. Cf. long-wall n. and adj. at long adj.¹ and n.¹ Compounds 4a.

ΘΚΠ

society > occupation and work > industry > mining > [adjective] > method of mining

open cut1869

underhand1877

open-pit1892

opencast1896

shortwall1912

1912 F. D. Power Coalfields & Collieries Austral. 409 Shortwall machine, a coal cutter for use in bords, which, when once the cutting part has made the sumping cut, is drawn across the face automatically by ropes, under~cutting as it proceeds.

1931 Trans. Inst. Mining Engineers LXXXI. 474 The thin seams are extracted on a ‘shortwall’ (retreating) method.

1942 Trans. Inst. Mining Engineers CII. 42 The shortwall is antagonistic to the basic principle that the maximum area of seam should be won with the minimum of roadway consistent with roadway costs.

1958 I. C. F. Statham Coal Mining Pract. I. vii. 298 Mechanised methods are now generally adopted for the coal-cutting in these narrow opening-up places, using either a shortwall coal-cutter, a Universal coal-cutting machine or in some cases a long~wall machine.

1964 A. Nelson Dict. Mining 406 A shortwall face may be any length between about 5 and 30 yd and is generally employed in pillar methods of working.

1973 L. J. Thomas Introd. Mining vii. 258 A group of shortwalls are mined adjacent to each other with rib-pillars left between.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019).

单词	shortwall
释义	shortwalln. Etymology: < short adj. + wall n.¹Previous versions of the OED give the stress as: ˈshortwall. Mining. A short coalface. Frequently attributive, denoting (equipment designed for) a method of mining in which shortwalls are worked. Cf. long-wall n. and adj. at long adj.¹ and n.¹ Compounds 4a. ΘΚΠ society > occupation and work > industry > mining > [adjective] > method of mining open cut1869 underhand1877 open-pit1892 opencast1896 shortwall1912 1912 F. D. Power Coalfields & Collieries Austral. 409 Shortwall machine, a coal cutter for use in bords, which, when once the cutting part has made the sumping cut, is drawn across the face automatically by ropes, under~cutting as it proceeds. 1931 Trans. Inst. Mining Engineers LXXXI. 474 The thin seams are extracted on a ‘shortwall’ (retreating) method. 1942 Trans. Inst. Mining Engineers CII. 42 The shortwall is antagonistic to the basic principle that the maximum area of seam should be won with the minimum of roadway consistent with roadway costs. 1958 I. C. F. Statham Coal Mining Pract. I. vii. 298 Mechanised methods are now generally adopted for the coal-cutting in these narrow opening-up places, using either a shortwall coal-cutter, a Universal coal-cutting machine or in some cases a long~wall machine. 1964 A. Nelson Dict. Mining 406 A shortwall face may be any length between about 5 and 30 yd and is generally employed in pillar methods of working. 1973 L. J. Thomas Introd. Mining vii. 258 A group of shortwalls are mined adjacent to each other with rib-pillars left between. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019). < n.1912
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