Installing Base Material

comments [Music] now the material we use for the base is the exact same material we use for the drainage and up in these parts we call it three-quarter clear we call it sewer rock locally and it is angular if you look at it it's all very consistent in size three-quarter inch in diameter but look at that angular nature that means as it it goes lays in place you can see that it automatically starts to connect together and bond together and that does two things it provides better stability under the wall but it also helps to eliminate settling because it almost creates a bridge as all of this material locks together now if we were having a real issue with base material we were really skeptic about it we would actually layer geo grid into the base in lift now we put six inches in for a typical retaining wall but in extreme conditions we'll go one two we've gone even deeper than two feet of base but laying every six inches a layer of grit in and creating a pyramid up to the bottom of that block so if this is the block when we go six inches we just go a little pyramid out but if we're going to go with the soil correction we'll extend that out one to one so we continue it out we create that pyramid that looked more like a one to two sorry one to one is steeper but we create that pyramid going up to support that wall so as the weight comes down it has a snowshoe effect and gets distributed over that subsoil [Music]