A soil profile is shown in Figure 1 along with the standard penetration numbers in the clay layer. Use Eqs. (1) and (2) to determine the variation of cu and OCR with depth. What is the average value of cu and OCR? Equation 1 0.29N972 Pa Equation 2 OCR - 0.193 Figure 1 Dry sand y = 16.5 kN/m Groundwater 1.5 m table Sand 1.5 m Yat = 19 kN/m N 1.5 m Clay 1.5 m Y - 16.8 kN/m * A8 1.5 m 9. 1.5 m 10 Sand