. Handbook of construction plant, its cost and efficiency. duplex steam pumpfor jetting. The leads were 40 ft. long. It cost $2,200. In op-eration it was found practical to swing the driving apparatusabout once each day. In ordinary driving the crew averaged 90pieces of sheeting in 8 hours, which is equivalent to 45 ft. oftrench. The pile driving crew consisted of 13 men costing $ daj, which gives a cost of 90 cts. per ft. of sewer. The billof material required for 90 ft. of piling was as follows: M., B. M., 2xl2-inch x 20-foot timber, @ $ $ 900 50 D Spikes, @ $ per
. Handbook of construction plant, its cost and efficiency. duplex steam pumpfor jetting. The leads were 40 ft. long. It cost $2,200. In op-eration it was found practical to swing the driving apparatusabout once each day. In ordinary driving the crew averaged 90pieces of sheeting in 8 hours, which is equivalent to 45 ft. oftrench. The pile driving crew consisted of 13 men costing $ daj, which gives a cost of 90 cts. per ft. of sewer. The billof material required for 90 ft. of piling was as follows: M., B. M., 2xl2-inch x 20-foot timber, @ $ $ 900 50 D Spikes, @ $ per 100 1 Ton of coal for pile driver - Total $ This gives a cost of $ per ft. of trench, or a total cost of$ per ft. During the six months ending June 30, 1910, the cost of repairs 458 HANDBOOK OF CONSTRUCTION PLANT to all pile drivers on the Panama Canal work was an averageof $ per day for 442 days of work. The pile drivers used on the work of improving Lincoln Park,Chicago, during 1910 and 1911, were of the drop hammer type,. Fig. 191. Special Traveling Pile Driver. equipped with 45 ft. leads and 2,400-lh. hammers. The cost ofoperation of Driver No. 1 during 1910 was as follows: Hours in commission 768 Labor operation $2, Fuel and supplies Labor repairs Towing, 4y2 hours, @ $ Insurance Total cost $3, Cost per hour The cost of operation and repairs on Drivers No. 1 and No. 2during 1911 are here given. The extensive repairs, includinga new deck house and a new boiler to fit driver No. 2 for work,accounts for the high repair cost for that machine. COST OF OPERATION AND REPAIRS OF PILE DRIVER NO. 1 Hours in commission 1,135 Labor $4, $ Fuel .19 Supplies .29 Watching .20 Insurance .07 $5, $ PILE DRIVERS 459 ? Repairs: Labor $ $ Material .17 $ $ Total operation and repairs $6, $ COST OF OPERATION AND REPAIRS OF PILE DRIVER N
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbuilding, bookyear191
