Kassir and Xu  studied the mixed boundary-value problem of the vibration of a rigid strip foundation
on a fluid-saturated porous half-space.
A 10m section of wall was raised, a new concrete strip foundations
was constructed along 80m of the existing embankment and meant a temporary flood defence could be installed quickly.
They are almost perfectly formed monolithic concrete boxes which lack a bottom surface, and are supported on strip foundations
. They had to be shimmed to the exact height and angle (up to two degrees from the vertical) specified by the architects for each one.
Laminated timber portal frames bolted to a concrete raft slab on strip foundations
are spaced at 5m intervals.