-5- Question 4 The geometry of a mass concrete retaining wall and soil properties are shown in Fig. Q4a. Determine the s

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5 Question 4 The Geometry Of A Mass Concrete Retaining Wall And Soil Properties Are Shown In Fig Q4a Determine The S 1 (32.96 KiB) Viewed 15 times

-5- Question 4 The geometry of a mass concrete retaining wall and soil properties are shown in Fig. Q4a. Determine the structural stability of the wall against overturning, sliding and bearing failure. (80%) Design Data: - Coefficient of friction between base and soil 0.46 Allowable soil bearing pressure under the wall base 600 kN/ m2 Unit weight of concrete = 24 kN/m 1 m 1 m Surcharge = 10 kN/m2 7775 Mass Concrete Retaining Wall SAND y=17 kN/m d' = 250 c'= 0 4.5 m (Not to scale) 77A 1 m Fig. Q4a (6) Groundwater is always the most critical factor that trickers stability of a soil slope. Describe briefly the various types of subsoil drainage commonly used in Hong Kong for slope protection (20%)