2. What are the criteria to determine whether a gravity retaining wall or a cantilever retaining wall is more suitable for your project? Equations and Tables: K 1-sino' K 0.95-sin o' Bearing capacity equation: q=cNFFF+NFFF+0.5BN,FFF Fa=1+(x) F=1+0.4(- B Shape factors by De Depth factors by Hansen (1970) Beer (1970) BN N =1+() tan B L F =1 Inclination factors by Meyerhof (1963) and Hanna and Meyerhof (1981) F₁ = F₁ = (1-2 F =1+2 tan o'(1-sing')² D F = (1-2 B 90° F =1-0.4(-) Table 4.2 Bearing Capacity Factors O K K o(overconsolidate) o(normally consolidated) NOCR 6' NE N₁ N₁ N Na N₁ 0 5.14 1.00 0.00 16 11.63 4.34 3.06 I 5.38 1.09 0.07 17 12.34 4.77 3.53 2 5.63 1.20 0.15 18 13.10 5.26 4.07 3 5.90 1.31 0.24 19 13.93 5.80 4.68 Ko K = tan² (45-%) =COS& cosa-√cos² a-cos² 4 6.19 1.43 0.34 20 14.83 6.40 5.39 6.49 1.57 0.45 21 15.82 7.07 6.20 6 6.81 1.72 0.57 7 7.16 1.88 0.71 23 COS K₁ = cosa cosa + √cos² a-cos² o' 8 7.53 2.06 0.86 24 9 7.92 2.25 1.03 25 cosa +√o cos² a-cos² ' COS -√cos² a-cos² o' 10 8.35 2.47 1.22 11 8.80 2.71 1.44 12 9.28 2.97 1.69 K₁ = sin² (B+0') 13 9.81 3.26 1.97 sin ẞ sin(ẞ-8)[1+ sin(+6) sin(-a)2 sin(B-) sin(a + ẞ) 14 10.37 3.59 2.29 222222222 16.88 7.82 7.13 18.05 8.66 8.20 19.32 9.60 9.44 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 15 10.98 3.94 2.65 31 32.67 20.63 25.99 (continued) K₁ sin² (B-') Table 4.2 Bearing Capacity Factors (Continued) sin ẞ sin(ẞ+6)[1- sin(+6) sin('+a)² Vsin(ẞ+8) sin(a+ẞ) $' N Na N₁, φ' No N₁₂ 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

2. What are the criteria to determine whether a gravity retaining wall or a cantilever retaining wall is more suitable for your project? Equations and Tables: K 1-sino' K 0.95-sin o' Bearing capacity equation: q=cNFFF+NFFF+0.5BN,FFF Fa=1+(x) F=1+0.4(- B Shape factors by De Depth factors by Hansen (1970) Beer (1970) BN N =1+() tan B L F =1 Inclination factors by Meyerhof (1963) and Hanna and Meyerhof (1981) F₁ = F₁ = (1-2 F =1+2 tan o'(1-sing')² D F = (1-2 B 90° F =1-0.4(-) Table 4.2 Bearing Capacity Factors O K K o(overconsolidate) o(normally consolidated) NOCR 6' NE N₁ N₁ N Na N₁ 0 5.14 1.00 0.00 16 11.63 4.34 3.06 I 5.38 1.09 0.07 17 12.34 4.77 3.53 2 5.63 1.20 0.15 18 13.10 5.26 4.07 3 5.90 1.31 0.24 19 13.93 5.80 4.68 Ko K = tan² (45-%) =COS& cosa-√cos² a-cos² 4 6.19 1.43 0.34 20 14.83 6.40 5.39 6.49 1.57 0.45 21 15.82 7.07 6.20 6 6.81 1.72 0.57 7 7.16 1.88 0.71 23 COS K₁ = cosa cosa + √cos² a-cos² o' 8 7.53 2.06 0.86 24 9 7.92 2.25 1.03 25 cosa +√o cos² a-cos² ' COS -√cos² a-cos² o' 10 8.35 2.47 1.22 11 8.80 2.71 1.44 12 9.28 2.97 1.69 K₁ = sin² (B+0') 13 9.81 3.26 1.97 sin ẞ sin(ẞ-8)[1+ sin(+6) sin(-a)2 sin(B-) sin(a + ẞ) 14 10.37 3.59 2.29 222222222 16.88 7.82 7.13 18.05 8.66 8.20 19.32 9.60 9.44 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 15 10.98 3.94 2.65 31 32.67 20.63 25.99 (continued) K₁ sin² (B-') Table 4.2 Bearing Capacity Factors (Continued) sin ẞ sin(ẞ+6)[1- sin(+6) sin('+a)² Vsin(ẞ+8) sin(a+ẞ) $' N Na N₁, φ' No N₁₂ 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

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