Strip Surcharge - Earth Pressure at Rest
Uniform strip load fa acting on the ground surface behind the structure parallel with vertical structure (see figure) creates an increment of earth pressure at rest Δσr having the magnitude given by:
vertical strip surcharge
α, α1, α2
evident from figure
The increase of the pressure can never be higher than pressure from surface surcharge of the same magnitude.
Increment of earth pressure due to vertical strip surcharge