Issue 7

Abdoullah Namdar et alii, Frattura ed Integrità Strutturale, 7 (2009) 73-79; DOI: 10.3221/IGF-ESIS.07.06 77 Sl. No Cup number Weight of wet sample Weight of dry sample Weight of cup Weight of Water Weight of dry soil % of water Average % of water 1 86 25.75 25.2 22.68 0.46 2.61 17.62 17.785 2 7 39.55 39.11 36.66 0.44 2.45 17.95 Table 4 : Result of liquid plastic of red soil (Plastic limit of red soil is 17.785%). Sl. No Model No 1 Optimum Moisture Content γ [kN/m 3 ] Φ [°] C [kN/m 2 ] S. B. C [kN/m 2 ] 2036.22 1926.51 3334.44 1833.97 2060.95 888.70 1026.83 427.74 718.00 1567.43 349.69 608.36 431.67 786.91 487.99 834.95 341.94 311.26 879.86 439.56 287.22 503.18 398.52 280.01 310.33 389.32 479.81 298.58 170.00 286.20 700.05 Table 5 : Experiments Results. C ONCLUSION ed soil mixed angular gravel, 4.75mm, has a positive effect on increasing cohesion, angle of friction and unit weight of soil. These characteristics could increase soil foundation stability. Plasticity, morphology, compatibility and Optimum Moisture Content are the main factors involved in the soil safe bearing capacity. Proper morphology, plasticity, optimum moisture content in any soil mixed model could support stability of the soil foundation and disable forces applied to the soil mixed model. R