engineering recuitment GATE CE 2023-24 Test Series Soil Mechanics and Foundation Engineering Earth Pressure
A retaining wall of height 10 m retains dry sand. In initial state, the soil is loose and has a void ratio of 0.5, γd = 18 kN/m2 and ϕ = 30°. Subsequently, the backfill is compacted to void ratio 0.3, γd = 20 kN/m3 and ϕ = 35°. The ratio of initial passive thrust to final passive thrust (upto 2 decimal places) is __________.
Enter numerical value using the virtual keypad. Round off where necessary.