In Problem 18.1, determine the maximum moment and its location. Assuming an allowable stress of 170 MN/m², select a sheet-pile section from Table 18.1.

Table 18.1.

Section H L. Section modulus Moment of inertia designation (mm) (mm) (mm) (mm) (m/m of wall ) (m/m of wall ) PZC-12 318.0 708.2 8.51 8.51 120.42 x 10-5 192.06 x 10-6 PZC-13 319.0 708.2 9.53 9.53 130.1 X 10-5 207.63 X 10-6 PZC-14 320.0 708.2 10.67 10.67 139.78 X 10-5 225.12 X 10-6 PZC-17 386.3 635.0 8.51 8.51 166.67 X 10-5 322.38 X 10 6 PZC-18 387.4 635.0 9.53 9.53 180.1 X 10-5 349.01 X 10-6 PZC-19 388.6 635.0 10.67 10.67 194.07 x 10-5 377.97 X 10-6 PZC-26 449.6 708.2 15.24 13.34 260.2 x 105 584.78 X 106 PZ-22 235.0 558.8 9.53 9.53 98.92 x 10-5 116.2 X 10-6 PZ-27 307.3 457.2 9.53 9.53 166.66 X 10-5 255.9 X 10-6 PZ-35 383.5 575.1 15.37 12.7 262.9 X 10-5 504.6 X 10-6 PZ-40 416.6 499.1 15.24 12.7 329.5 x 10-5 686.7 X 10-6 PS-27.5 500 10.16 10.21 X 10-5 4.1 X 10-6 | PS-31 500 12.7 10.21 x 10-5 4.1 x 10-6 (Note: H = height; L = length; w = wall thickness; f= flange thickness.) Driving distance = L - Driving distance =L PZC and PZ section PS section