164
SHOP MANAGEMENT
Material | Throw | Length of walk | Actual Continuous Work with no Allowances for Rest or other Stops | Per cent. of runs | Allowing for Rests and other Necessary Stops | ||||||||||||
Vertical | Horizontal | Time to fill shovel | Time to throw shovelful | Time walking with load | Time of back walk | Total time of complete operation | Volume of shovelful | Weight of shovelful | No. shovelfuls per minute | No. cubic yards per hour | No. pounds per hour | No. shovelfuls per minute | No. cubic yards per hour | No. pounds per hour | |||
Sand, or Sandy loam | Feet | Feet | Feet | Min. | Min. | Min. | Min. | Min. | Cu. ft. | Lbs. | Shovels | Cu. yds. | Lbs. | P. c. | Shovels | Yards | Lbs. |
4 | 5 | 0.073 | 0.031 | 0.104 | 0.16 | 16 | 9.6 | 3.4 | 9,230 | 30 | 7.4 | 2.6 | 7,100 | ||||
6 | 5 | 0.073 | 0.043 | 0.110 | 0.14 | 14 | 8.6 | 2.7 | 7,250 | 30 | 6.6 | 2.0 | 5,580 | ||||
8 | 5 | 0.073 | 0.056 | 0.129 | 0.11 | 11 | 7.8 | 1.9 | 5,120 | 30 | 6.0 | 1.4 | 3,940 | ||||
4 | 712 | 0.073 | 0.043 | 0.116 | 0.14 | 14 | 8.6 | 2.7 | 7,250 | 30 | 6.6 | 2.1 | 5,530 | ||||
6 | 712 | 0.073 | 0.056 | 0.129 | 0.12 | 12 | 7.8 | 2.1 | 5,590 | 30 | 6.0 | 1.6 | 4,300 | ||||
4 | 10 | 0.073 | 0.058 | 0.131 | 0.13 | 13 | 7.6 | 2.2 | 5,960 | 30 | 5.9 | 1.7 | 4,830 | ||||
6 | 10 | 0.073 | 0.076 | 0.149 | 0.11 | 11 | 6.7 | 1.6 | 4,440 | 30 | 5.2 | 1.3 | 3,420 | ||||
20 | 0.073 | 0.020 | 0.080 | 0.080 | 0.253 | 0.20 | 20 | 4.0 | 1.8 | 4,750 | 5 | 3.8 | 1.7 | 4,520 | |||
30 | 0.073 | 0.020 | 0.120 | 0.120 | 0.333 | 0.20 | 20 | 3.0 | 1.3 | 3,600 | 5 | 2.9 | 1.3 | 3,430 | |||
Loam, gravelly | |||||||||||||||||
4 | 5 | 0.092 | 0.031 | 0.123 | 0.14 | 15.8 | 8.1 | 2.5 | 7,700 | 30 | 6.2 | 2.0 | 5,920 | ||||
6 | 5 | 0.092 | 0.043 | 0.135 | 0.13 | 14.7 | 7.4 | 2.1 | 6,520 | 30 | 5.7 | 1.6 | 5,015 | ||||
8 | 5 | 0.092 | 0.056 | 0.148 | 0.10 | 11.3 | 6.8 | 1.5 | 4,580 | 30 | 5.2 | 1.2 | 3,530 | ||||
4 | 712 | 0.092 | 0.043 | 0.135 | 0.13 | 14.7 | 7.4 | 2.1 | 6,510 | 30 | 5.7 | 1.6 | 5.010 | ||||
6 | 712 | 0.092 | 0.056 | 0.148 | 0.11 | 12.4 | 6.8 | 1.6 | 5,030 | 30 | 5.2 | 1.3 | 3,870 | ||||
4 | 10 | 0.092 | 0.058 | 0.150 | 0.12 | 13.6 | 6.7 | 1.8 | 5,440 | 30 | 5.1 | 1.4 | 4,180 | ||||
6 | 10 | 0.092 | 0.076 | 0.168 | 0.10 | 11.3 | 6.0 | 1.3 | 4,030 | 30 | 4.6 | 1.0 | 3,100 | ||||
20 | 0.092 | 0.020 | 0.080 | 0.080 | 0.272 | 0.19 | 21.5 | 3.7 | 1.6 | 4,750 | 5 | 3.5 | 1.5 | 4,520 | |||
30 | 0.092 | 0.020 | 0.120 | 0.120 | 0.352 | 0.19 | 21.5 | 2.8 | 1.2 | 3,670 | 5 | 2.7 | 1.1 | 3,490 | |||
Gravel, medium | |||||||||||||||||
4 | 5 | 0.084 | 0.031 | 0.115 | 0.12 | 17 | 8.7 | 2.34 | 8,870 | 30 | 6.7 | 1.8 | 6,820 | ||||
6 | 5 | 0.084 | 0.043 | 0.127 | 0.10 | 14.2 | 7.9 | 1.8 | 6,720 | 30 | 6.0 | 1.3 | 5,170 | ||||
8 | 5 | 0.084 | 0.056 | 0.140 | 0.08 | 11.4 | 7.1 | 1.3 | 4,880 | 30 | 5.5 | 1.0 | 3,750 | ||||
4 | 712 | 0.084 | 0.043 | 0.127 | 0.11 | 15.6 | 7.9 | 1.9 | 7,370 | 30 | 6.0 | 1.5 | 5,670 | ||||
6 | 712 | 0.084 | 0.056 | 0.140 | 0.09 | 12.8 | 7.1 | 1.4 | 5,480 | 30 | 5.5 | 1.1 | 4,220 | ||||
4 | 10 | 0.084 | 0.058 | 0.142 | 0.10 | 14.2 | 7.0 | 1.6 | 6,000 | 30 | 5.4 | 1.2 | 4,620 | ||||
6 | 10 | 0.084 | 0.076 | 0.160 | 0.08 | 11.4 | 6.2 | 1.1 | 4,270 | 30 | 4.8 | 0.8 | 3,280 | ||||
20 | 0.084 | 0.020 | 0.080 | 0.080 | 0.264 | 0.15 | 21.3 | 3.8 | 1.3 | 4,840 | 5 | 3.6 | 1.2 | 4,610 | |||
30 | 0.084 | 0.020 | 0.120 | 0.120 | 0.344 | 0.15 | 21.3 | 2.9 | 1.0 | 3,720 | 5 | 2.8 | 0.9 | 3,540 |
Table 3.—Shoveling Earth in Average Contract Work
Earth Previously Loosened—Volumes are Based on Measurement in Cut