The Engineering of Excavation

Front Cover
John Wiley & Sons, Incorporated, 1923 - Dredges - 376 pages
The book concentrates, under one cover, most of the data on excavating problems and the application of machinery to them that the author learned over many years during his study of excavation. (lg).
 

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Page 367 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard 128 cubic feet...
Page 367 - Square Measure 144 square inches = 1 square foot 9 square feet = 1 square yard 30 square yards = 1 square rod 160 square rods = 1 acre 640 acres = 1 square mile...
Page 367 - Dry Measure. — 2 pints = 1 quart; 8 quarts = 1 peck; 4 pecks = 1 bushel.
Page 211 - Such steel shall also bend 180 degrees to a diameter equal to the thickness of the piece tested without fracture on the outside of the bent portion...
Page 187 - Tensile strength, pounds per square inch 70,000 Yield point, pounds per square inch 31,500 Elongation...
Page 179 - Multiply 2-25 times the length of the pipe in miles by the square of the velocity of the water in the pipe in feet per second...
Page 298 - Connections between staple angles of water-tight floors and the floor plates In special cases of intercostals, beam ends, etc., where strength is required...
Page 198 - ... nine Mississippi River 5-flued boilers, arranged in three batteries. The dredge will be fitted with auxiliary machinery for electric lighting, ice making and refrigeration, and with steam capstans, steam-steering gear, small machine shop, and sundry steam pumps; and will be outfitted in accordance with the requirements of the Board of Supervising Inspectors of Steam Vessels. The pipe line will consist of five sections of 36-inch pipe, each section to be 100 feet long, and to be carried on two...
Page 367 - Linear measures: 12 inches = 1 foot 3 feet = 1 yard 5280 feet = 1 mile...
Page 367 - Imperial bushels Measures of Weight — Avoirdupois 16 drachms or 437.5 grains = 1 ounce (oz.) 16 ounces or 7000 grains = 1 pound (Ib.) 2000 pounds = 1 net or short ton 2240 pounds = 1 gross or long ton 2204.6 pounds = 1 metric ton Specific Gravity The specific gravity of a substance is its weight as compared with the weight of an equal bulk of pure water. For making specific gravity determinations the temperature of the water is usually taken at 62 degrees Fahrenheit when 1 cubic foot of water weighs...

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