Issue 10

A. Namdar et alii, Frattura ed Integrità Strutturale, 10 (2009) 38-42; DOI: 10.3221/IGF-ESIS.10.05 41 Sl. No Φ q s if d=0.7 (m) q s if d=0.8 (m) q s if d=0.9 (m) q s if d=1 (m) q s if d=1.1 (m) q s if d=1.2 (m) q s if d=1.3 (m) q s if d=1.4 (m) q s if d=1.5 (m) 1 0 9.80 11.20 12.60 14.00 15.40 16.80 18.20 19.60 21.00 2 5 14.09 15.77 17.45 19.13 20.81 22.49 24.17 25.85 27.53 3 10 20.95 23.15 25.34 27.53 29.73 31.92 34.11 36.31 38.50 4 15 32.57 35.56 38.55 41.53 44.52 47.51 50.49 53.48 56.47 5 20 54.04 58.43 62.81 67.20 71.59 75.97 80.36 84.75 89.13 6 25 93.29 100.15 107.01 113.87 120.73 127.59 134.45 141.31 148.17 7 30 171.97 183.40 194.83 206.27 217.70 229.13 240.57 252.00 263.43 8 35 339.64 359.89 380.15 400.40 420.65 440.91 461.16 481.41 501.67 9 40 740.65 779.52 818.39 857.27 896.14 935.01 973.89 1012.76 1051.63 10 45 1960.98 2042.79 2124.59 2206.40 2288.21 2370.01 2451.82 2533.63 2615.43 11 50 6744.13 6938.77 7133.42 7328.07 7522.71 7717.36 7912.01 8106.65 8301.30 Table 3 : Safe bearing capacity of soil when depth of foundation (d) is varied, cohesion is zero, width of foundation is 2.5 m and soil density (  ) is 14 kN/m 3 . Figure 3 : Safe bearing capacity Vs angle of friction of soil Sl. No Φ q s if w=1.7 (m) q s if w=1.8 (m) q s if w=1.9 (m) q s if w=2.0 (m) q s if w=2.1 (m) q s if w=2.2 (m) q s if w=2.3 (m) q s if w=2.4 (m) q s if w=2.5 (m) 1 0 21.00 21.00 21.00 21.00 21.00 21.00 21.00 21.00 21.00 2 5 26.79 26.88 26.97 27.07 27.16 27.25 27.35 27.44 27.53 3 10 36.71 36.93 37.16 37.38 37.60 37.83 38.05 38.28 38.50 4 15 52.73 53.20 53.67 54.13 54.60 55.07 55.53 56.00 56.47 5 20 81.67 82.60 83.53 84.47 85.40 86.33 87.27 88.20 89.13 6 25 133.68 135.49 137.30 139.11 140.92 142.73 144.55 146.36 148.17 7 30 234.01 237.69 241.37 245.05 248.72 252.40 256.08 259.76 263.43 8 35 438.35 446.26 454.18 462.09 470.01 477.92 485.84 493.75 501.67 9 40 901.70 920.44 939.19 957.93 976.67 995.41 1014.15 1032.89 1051.63 10 45 2171.17 2226.70 2282.23 2337.77 2393.30 2448.83 2504.37 2559.90 2615.43 11 50 6579.19 6794.45 7009.72 7224.98 7440.24 7655.51 7870.77 8086.04 8301.30 Table 4 : Safe bearing capacity of soil when width of foundation (w) is varied, cohesion is zero, depth of foundation is 1.5 m and soil density (  ) is 14 kN/m 3 .