Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 130
t, dividedby 27 = 444.28 cubic yards. Example 5. The Road-way is r = 16 feet, slope S = 1| feet, 2? = 17*5, tf = 7*4and the length L = 100 feet. Required the cubic content C = 1 Fornul* 12. C =loo[«(H^±I±±HlXIl)+|(17-6+7-4)] = 44445 cubic feet, or 1645*4 cubic yards.The computation is executed… … Letters in the Formulas correspond with the Figure. & = cot V, a = D cot. v, -b = 2 D S + r, s T5> * A=|-(5 + r), - 7. a-5-(* + r), - 8. A = D{D S + r), 9. a. = d(dS + r), - 10. C = ^—+2) 1L + 5 (p + </)]. - 12. Letters Denote,A and a ^= Cross-Sections in square feet, of the excavated…
Mechanical engineering · Engineering
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