5. How would you modify your design of a cantilever retaining wall if the factor of safety against overturning and/or sliding does not meet the requirement of regulations or common practice? shown in Bearing capacity equation: q=CNFFF+d'N F F F +0.57BN,F, FF, Shape factors by De Depth factors by Hansen (1970) Inclination factors by Meyerhof (1963) Beer (1970) Fo=1+(무XX) and Hanna and Meyerhof (1981) F =1+0.4(4) F₁ = F₂ = (1-2 90° LN Fo1 + stand =1+ For =1+2 tan o'(1-sino)2DF, = (1 F₁ = (1-2)² B F₁ =1 F,=1-0.4(+) Equations and Tables: K1-sino' K 0.95-sin o' Table 4.2 Bearing Capacity Factors N Na N₁ N Na N K o(overconsolidate) Ko(normally consolidated) NOCR 0 5.14 1.00 0.00 16 I 5.38 1.09 0.07 17 2 5.63 1.20 0.15 18 3 5.90 1.31 0.24 19 K₁ = tan² (45-%) 4 6.19 1.43 0.34 20 5 6.49 1.57 0.45 21 6 6.81 1.72 0.57 7 7.16 1.88 0.71 23 COSC – Ka =cosa -√cos² α- cosa + √cos² α- a-cos'' cosa + √cos² a-cos² o' 8 7.53 2.06 0.86 24 K, =COS& 9 7.92 2.25 1.03 a-cos² ' COSC – -√cos² α- cos² a-cos² ' 10 8.35 2.47 1.22 11 8.80 2.71 1.44 12 9.28 2.97 1.69 K= sin² (ẞ+) 13 sin² ß sin(ẞ-8)[1+ sin('+5) sin('-α)² sin(B-) sin(a+B) 14 15 345 9.81 3.26 1.97 10.37 3.59 2.29 SERDAR222222222 11.63 4.34 3.06 12.34 4.77 3.53 13.10 5.26 4.07 13.93 5.80 4.68 14.83 6.40 5.39 15.82 7.07 6.20 16.88 7.82 7.13 18.05 8.66 8.20 19.32 9.60 9.44 25 20.72 10.66 10.88 26 22.25 11.85 12.54 27 23.94 13.20 14.47 28 25.80 14.72 16.72 29 27.86 16.44 19.34 30 30.14 18.40 22.40 10.98 3.94 2.65 31 32.67 20.63 25.99 (continued) K₁ sin² (B-) Table 4.2 Bearing Capacity Factors (Continued) sin² ß sin(ẞ+6)[1– sin('+6) sin('+α) ₁₂ Vsin(+6) sin(a + ẞ) $' No Na N₁, φ' No N₁ Ny 32 35.49 23.18 30.22 42 93.71 85.38 155.55 33 38.64 26.09 35.19 43 105.11 99.02 186.54 34 42.16 29.44 41.06 44 118.37 115.31 224.64 35 46.12 33.30 48.03 45 133.88 134.88 271.76 36 50.59 37.75 56.31 46 152.10 158.51 330.35 37 55.63 42.92 66.19 47 173.64 187.21 403.67 38 61.35 48.93 78.03 48 199.26 222.31 496.01 39 67.87 55.96 92.25 49 229.93 265.51 613.16 40 75.31 64:20 109.41 50 266.89 319.07 762.89 41 83.86 73.90 130.22

5. How would you modify your design of a cantilever retaining wall if the factor of safety against overturning and/or sliding does not meet the requirement of regulations or common practice? shown in Bearing capacity equation: q=CNFFF+d'N F F F +0.57BN,F, FF, Shape factors by De Depth factors by Hansen (1970) Inclination factors by Meyerhof (1963) Beer (1970) Fo=1+(무XX) and Hanna and Meyerhof (1981) F =1+0.4(4) F₁ = F₂ = (1-2 90° LN Fo1 + stand =1+ For =1+2 tan o'(1-sino)2DF, = (1 F₁ = (1-2)² B F₁ =1 F,=1-0.4(+) Equations and Tables: K1-sino' K 0.95-sin o' Table 4.2 Bearing Capacity Factors N Na N₁ N Na N K o(overconsolidate) Ko(normally consolidated) NOCR 0 5.14 1.00 0.00 16 I 5.38 1.09 0.07 17 2 5.63 1.20 0.15 18 3 5.90 1.31 0.24 19 K₁ = tan² (45-%) 4 6.19 1.43 0.34 20 5 6.49 1.57 0.45 21 6 6.81 1.72 0.57 7 7.16 1.88 0.71 23 COSC – Ka =cosa -√cos² α- cosa + √cos² α- a-cos'' cosa + √cos² a-cos² o' 8 7.53 2.06 0.86 24 K, =COS& 9 7.92 2.25 1.03 a-cos² ' COSC – -√cos² α- cos² a-cos² ' 10 8.35 2.47 1.22 11 8.80 2.71 1.44 12 9.28 2.97 1.69 K= sin² (ẞ+) 13 sin² ß sin(ẞ-8)[1+ sin('+5) sin('-α)² sin(B-) sin(a+B) 14 15 345 9.81 3.26 1.97 10.37 3.59 2.29 SERDAR222222222 11.63 4.34 3.06 12.34 4.77 3.53 13.10 5.26 4.07 13.93 5.80 4.68 14.83 6.40 5.39 15.82 7.07 6.20 16.88 7.82 7.13 18.05 8.66 8.20 19.32 9.60 9.44 25 20.72 10.66 10.88 26 22.25 11.85 12.54 27 23.94 13.20 14.47 28 25.80 14.72 16.72 29 27.86 16.44 19.34 30 30.14 18.40 22.40 10.98 3.94 2.65 31 32.67 20.63 25.99 (continued) K₁ sin² (B-) Table 4.2 Bearing Capacity Factors (Continued) sin² ß sin(ẞ+6)[1– sin('+6) sin('+α) ₁₂ Vsin(+6) sin(a + ẞ) $' No Na N₁, φ' No N₁ Ny 32 35.49 23.18 30.22 42 93.71 85.38 155.55 33 38.64 26.09 35.19 43 105.11 99.02 186.54 34 42.16 29.44 41.06 44 118.37 115.31 224.64 35 46.12 33.30 48.03 45 133.88 134.88 271.76 36 50.59 37.75 56.31 46 152.10 158.51 330.35 37 55.63 42.92 66.19 47 173.64 187.21 403.67 38 61.35 48.93 78.03 48 199.26 222.31 496.01 39 67.87 55.96 92.25 49 229.93 265.51 613.16 40 75.31 64:20 109.41 50 266.89 319.07 762.89 41 83.86 73.90 130.22

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls

Section: Chapter Questions

Problem 15.12P

See similar textbooks