Van Nostrand's engineering magazine . it alwaysdoes when W + 228a/F is less than 1, Wrepresenting the weight of the ram intons, and F its fall in feet. Assuming another case, a case inwhich the weight and fall of the ram aremuch greater, the discrepancies are stillmore remarkable. Say that the pile isof the same size and weight as the one atProctorsville; that it makes the samepenetration at the last blow, and isdriven by a two thousand (2000) poundram, falling twenty five (25) feet. Theextreme supporting power and safe loadin this case, according to the various au-thorities, are stated in the
Van Nostrand's engineering magazine . it alwaysdoes when W + 228a/F is less than 1, Wrepresenting the weight of the ram intons, and F its fall in feet. Assuming another case, a case inwhich the weight and fall of the ram aremuch greater, the discrepancies are stillmore remarkable. Say that the pile isof the same size and weight as the one atProctorsville; that it makes the samepenetration at the last blow, and isdriven by a two thousand (2000) poundram, falling twenty five (25) feet. Theextreme supporting power and safe loadin this case, according to the various au-thorities, are stated in the followingtable, in which, you will observe, therelative positions of khe names of theseauthorities are not the same as in thepreceding table. Names of authors offormula; and rules. ) Trautwine (2) Hodgkinson (3) Nysirom (4) Rankine(5) Do. H Ma-on (8) WcUhach (9) Tne Dutch Engineers (10) ) (ls,i ) Rondelet(14) Perronct (IB) Rmkine (16) Mahan(17) Wheeelur(18) Rmkiue(19) Miban C0) Wheeler (al). 185,009 219,117 403,450 490,824 (6) 886, p+1in which P and F are the same as in Mc-Alpines formula; W the weight of the ramin pounds, and p, the penetration at
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
