Thanks for the helpful responses.
I did find a NIOSH study which conceptualizes transversely loaded dry-stack blocks as a three hinge arch and then empirically derives a formula through testing different blocks, thicknesses, and heights when stacked blocks are placed between two platens. the...
While doing the demolition for a sidewalk replacement, the contractor uncovered an abandoned underground vault 6’ deep, projecting four feet from the building. The 6’ tall by 4’ wide opening from the vault to the basement was blocked in with 6” CMU set in a running bond. City requires that the...