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Author Primitive human haulage in mines
Graigfawr

Joined: 04/11/2009

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Send Private Message 		Primitive human haulage in mines
Posted: 22/02/2010 22:07:31 Reply |  Quote
On another thead I quoted a comparison of mules vs horses for mining purposes from R.Peele (ed) 'Mining Engineers' Handbook', New York, 1927. This book also contained a comparison of transport by (human) packing, shovelling, and wheelbarrow transport (p.990), which may interest - or apall - some aditnow members:

'Packing. Mineral is carried in sacks, skins or baskets on backs or heads of men and women, in primitive countries, occasionally in narrow, tortuous workings, or in emergency work. Unit load is usually 60 to 150 lb, but, in Latin America and the Orient, peones and coolies carry more. Duty varies widely, but approximates 12 to 14 man-hr per ton-mile. Boxes or hand-barrows, holding 200 to 700 lb, and carried by 2 or more men, are slightly more economic, but if there is room for such practice better methods are usually feasible.'

Shovelling. Transport by carrying or casting with shovels is proper only as a last resort. One man can move 1 ton 100ft in about 2.5 hr, equivalent to 125 to 160 man-hr per ton-mile.'

'Wheelbarrow transport, exclusive of loading, costs at least 1 man-shift per ton-mile, and is justified only in temporary work, or where first cost of track and equipment is not warranted. Short exploratory workings and small, irregular stopes, where the only alternative is shovelling, are the only proper fields for the barrow in mining work'.

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