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Gold Prince Tunnel Bulkhead Calcs Page 5 August 18, 1996 <br /> V. <br /> 21 —C 29 l 6 511J -0.35w1 =0.35(1814)8.5 = 53971b <br /> V = �° _ 5397 =6349 lb <br /> 0.85 0.85 <br /> K=3.5 -2.5d =3.5 - 2.5 �2 =3.5 - 0.37=3.13 <br /> V. 6349(12) <br /> K cannot exceed 2.5 Therefore K=2.5 <br /> pW bqd — (0.000 =0.000000 <br /> Vc=K(1.9 fc +2500pw ud)b,,,d <br /> V.=2.5 1.9 3 000 +2500(0.00)6 4<2) 12(60) <br /> V,, =2.5[104.1 +0.00]720 = 187,300 lb <br /> FS= v- = 187300 =29.5 <br /> V° 6349 <br /> Gold Prince Tunnel bulkhead, for 65 ft pressure head to push water to ground surface <br /> a= .5(1 l) = 60 = 1.70 <5 Therefore, plain concrete bulkhead is a deep beam for design! <br /> V, =K(1.9 IfT +250opw Md)bwd <br /> = (ui1)(0. 15 1)—w(0.15 1)0.25 1 =0.0637Sw22Z =0.O637S15685(8.52)l <br /> 2 2 <br /> 13100 ft•lb <br /> Mn __ 1310 0 0.9 0.9 = 14600 ft lb <br /> 1•� <br /> V = 2—C 2)(0 55 i) = 0.350A =0.35(5685)8.5 = 16900 lb <br /> V = V° 16900 = 19900 lb <br /> ° 0.85 0.85 <br /> K=3.5 - 2.5��a =3.5 -2.5 14600 =3.5 - 0.15 =3.35 <br /> 19900(iz) <br /> K cannot exceed 2.5 Therefore K=2.5 <br /> 5 <br />