Handbook of construction plant, its cost and efficiency (1918)
Dana, Richard Turner, 1876-1928 · New York, McGraw-Hill book company, inc., [etc., etc.] · leaf 644
of 36-in. brick sewer, about 2,200 ft. of 30-in. brick sewer andsome 17,000 ft. of 15 and 18-in. pipe sewer. The depth of thesesewers below natural ground surface is an average of 14 ft.The soil consists of black loam overlying- yellow and blue clay,the clay being stiff enough to stand well with… … Fig. 302. View of Austin No. 1 Trench iVIachine Digging a 15-ft.Trencli 42 Inclnes Wide. Austin Trench Excavator fitted with buckets cutting to a widthof 42 inches. The work at present is on the 36-in. circular sewer, which con-sists of a two-ring invert and a single ring arch. Following themachine…
Contractors' operations · Building
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