Understand the Block-Bridge System Concept

showing me that you guys know bro all right guys i want to actually show you a different system for retaining walls when you get into larger walls they're all supported by what's called geogrid which is a geosynthetic material which lays out horizontally behind the wall and two foot increments and every for every one foot of wall height you got to have one foot behind the wall but that means if you've got an eight foot tall wall you've got to have four layers of grid eight feet behind the wall on average to compensate for the surcharge or for any other geostatic and loading that can happen you don't always have that space that's what i'm getting to that's a really long way of trying to get to that this guy came up with this system where he had i've seen systems like this before where he actually clips a set of cmu these are concrete masonry units that's what cmu stands for behind it and so the sheer weight of this helps to hold the wall together let's