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Unformatted text preview: Use the Christensen experimental method for the depth. The graph for Christensens method can be approximated by the equation below. 0916 . 5003 . 1 6336 . 1 * 9655 . 2 3 + + - = Qfull Qactual Qfull Qactual Qfull Qactual Dfull Dactual Note: Remember that the minimum pipe diameter to be used in the sewers is 8 and the minimum velocity of the water in the pipes when flowing full is 2fps. If you work this problem in Excel, you can email me your spreadsheet but make sure the equations used are written somewhere in the spreadsheet and your work is very organized. 1 2 4 3 A B EL=130' EL= 110' EL= 150' EL= 130' EL= 122' EL= 86' EL = Elevation Figure 1. Sewer System Plan View Table 1. # of house connections to sewer system. Sewer Section Length of Section ft # of house connections per section 1 to A 11,000 600 2 to A 6,900 340 A to B 4,500 270 3 to B 8,000 310 B to 4 2,500 415...
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- Spring '08