4) Determine the increase in vertical stress at a depth (2) m belowpoint A due to surface loads shown in Figure (2). m or n L.O 10.00 9.0 8.0 7.0 6.0 5.0 4.0 E 3.0 2.5 2.0 G.S.L XXXX 1.5 Z 0.007 -0.006 1.5 4 0.009 0.006 0.15 1904 -0.011 0.010 160 kPa Section b-b 2 0.2 0.012 0.014 m or n 2.5 3 GOLE 0.016 & 0.020 0.25 0.3 -0.024. 120 kPa 4 2.000 0.4 5 -0.04 6 0.06 S b 7 8 9 10 Fats 0.34 0.13 0.5 0.6 0.7 0.8 0.9 1.0 m or n (a) 2.5 m 160 kPa 120 kPa ais. 15 . 1.5 2 2.5 3 2.5 T 3 1.5 m 2 m 0.5 m 4 4 i 5 Fig.(2) 6 7 8 9 . 1 10 1: 11.0 0.9 0.8 0.7 0.6 40.5 10.4 0.3 0.25 0.2 m or m E 0.15 .9 10 0.10

7. 4) Determine the increase in vertical stress at a depth (2) m belowpoint A due to surface loads shown in Figure (2). m or n L.O 10.0 9.0 8.0 7.0 6.0 5.0 4.0 E 3.0 2.5 2.0 G.S.L xxxx 1.5 z 1.5 -0.006- -0.007 0.006 0.009 0.15 19 -0.011 0.010 Section b-b 2 160 kPa 0.2 0.012 0.014 m or n 2.5 3 G014 0.016 0.020 & 0.25 0.3 0,024 120 kPa 4 2.000 0.4 5 -0.04 6 0.06 S b + 7 8 9 10 0.13 ats 0.34 0.5 0.6 0.7 0.8 0.9 1.0 m or n (a) 2.5 m 160 kPa 120 kPa ais. 1.5 . 1.5 2 2.5 3 2.5 T 3 1.5 m 2 m 0.5 m 4 4 5 Fig.(2) 6 7 8 9 . 1 10 11.0 0.9 0.8 0.7 0.6 40.5 10.4 0.3 0.25 0.2 m of n E 0.15 0.10 .9 10

rock mechanic course

Determine the principal stresses and the maximum in- plane shearing stress. Show all results on complete sketches of differential elemeNisa тху %3D 30 МPа