Hi. I am building a one meter high retaining wall where a brick garage used to be which also acted as a retaining wall. my plan is to keep the back wall of the garage to retain the soil while I build a new retaining block wall. The back wall of the garage is only one skin thick with just soil behind and is failing as a retaining wall.
The main question is if I build my new block wall in front of the failing brick wall with a space for a land drain and hardcore drainage between the old and new walls there will be a solid foundation beneath that drainage cavity. Is this ok. I understand you normally build the wall to the back edge of the foundation or slab so drainage goes behind. Obviously with my proposal the drainage will be on the slab. I would also put holes in the base of both walls for extra drainage. Does any one forsee any problems with my idea. Cheers
The main question is if I build my new block wall in front of the failing brick wall with a space for a land drain and hardcore drainage between the old and new walls there will be a solid foundation beneath that drainage cavity. Is this ok. I understand you normally build the wall to the back edge of the foundation or slab so drainage goes behind. Obviously with my proposal the drainage will be on the slab. I would also put holes in the base of both walls for extra drainage. Does any one forsee any problems with my idea. Cheers