ABSTRACT
Equation (20.11) gives the theoretical depth D which should be increased by 20 to 40 percent. Point C in Fig. 20.9 is the point of zero shear. Therefore,
-3K M max =P(H+Yo)-rY~ (20.12)
where r= effective unit weight of the soil
Example 20.1 Determine the depth of embedment for the sheet-piling shown in Fig. Ex. 20.1a by rigorous analysis. Determine also the minimum section modulus. Assume an allowable flexural stress!b = 175 MN/m2. The soil has an effective unit weight of 17 kN/m3 and angle of internal friction of 30°.
Solution
