PROB. #1. Calculate the lateral earth pressure at rest per unit length of the retaining wall shown in Fig. 1. Sketch the distribution of the earth pressure along the height of the wall. Also determine the magnitude and location of the resultant earth pressure. Draw separate diagrams for lateral pressure due soil and water. PROB. #2. For the retaining wall shown in Fig. 2 determine the Rankine's lateral active earth pressure per unit length of the retaining wall. Also determine the location of the resultant active earth pressure. PROB. # 3. Repeat problem # 2 for the data shown in Fig. 3.. Draw separate diagrams for lateral pressure due soil, uniform surcharge and water. PROB. #4. For the problem shown in Fig. 4 calculate Rankine's active earth pressure for the following cases: (a) Before the occurrence of the tensile crack: (b) After the occurrence of the tensile crack. Also draw sketches showing the variation of the active earth pressure along the height of the retaining wall. Determine the location of the resultant earth pressure for (b) only. PROB. # 5. Determine the Rankine's active earth pressure per meter length of the retaining wall shown in Fig. 5. Also determine the resultant earth pressure. T 4 ft Sand y=118 pcf -33° ft c=0 Clay Ysat 122.4 pcf =0 OCR 6 Fig. 1 Sand 8m y= 17.5 kN/m² =34° c=0 q-50 kN/m² Sand 3m Y-16 kN/m³ Fig.2 Fig. 3. 8m =30° 프 Sand Ysat 19.8 kN/m² =36°