If the backfill has unit weight of 18 KN/m^2 and surcharge of 36 KN/m^2, then find the equivalent height of surcharge.
(a) 4m
(b) 56m
(c) 2m
(d) 86m
I got this question in examination.
Asked question is from Earth Pressure Problems topic in section Failure Envelopes & Earth Pressure of Geotechnical Engineering II