Pleasw use the figure to find the Stress 

(Use The Figure (10.20) to find the solution of this question) Two embankments loads on silty clay soils layers as shown below. Unit weights of the left and right embankments are 11 and 13 kN/m, respectively. Determine the stress increase under the embankments at point A that are loaded at a depth of 4 m below the ground surface. Center ine 1:1H 7= 11 kN/m 5m 13 /m Figure 10,19 Emhankment kading 30 20 16 045 14 12 0.40 09 0.35 06 030 04 -025 020 02 a10 Figure 10.20 Osterberg's chart for determination of vertical stres 0.00 due to embank- 10 100 ment loading 327 eboa ee ka HIAI