Retaining Wall Drainage Detail Uk

For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel.
Retaining wall drainage detail uk. 41 inch hollow core section pdf dwg. Do i need drainage behind my retaining wall. We re gonna show you how to build a retaining wall that won t fall over. Start a retaining wall with a good bed of gravel extending about a foot on either side of the wall base.
You may have to submit. Don t forget to protect waterproofing from damage while you re building. Solid block wall section pdf dwg. Use drainage tubing behind the wall slope the tubing from one end of the wall to the other or from the ends to the middle.
However the research project has afforded an opportunity to evaluate the advantages and disadvantages of producing performance specifications for drainage. Design procedure overview 3. Gravity walls solid 41 inch 1030mm hollow core and xl blocks all gravity wall details pdf. This is so that when water gets into the space it does not become bogged down in soil but instead can flow down the wall to the drains or weep holes.
The drainage of highway retaining walls in the united kingdom seems to be generally satisfactory. Earthquake seismic design 7. Slope paving away from the wall and provide gravel drainage strips where possible. Forces on retaining walls 6.
Cut holes into the wall to let water out. Building codes and retaining walls 5. Large batter wall section pdf dwg. Among other detailed conclusions are that piezometric studies of the fill behind retaining walls would.
The bed will allow water that seeps down the back side of the wall to drain out through the gravel underneath it. Waterproof the retaining side of the wall and allow water to drain away from this side through weep holes pipes. Between the lip and their sheer weight this is enough to hold them in place without mortar. It s not crazy.
Block setback options large batter pdf dwg. Soil bearing and stability 8. Soil mechanics simplified 4. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
Increase the drainage by placing perforated plastic pipe or similar commercial draining systems at the bottom of the wall. Block setback options 5 degree batter pdf dwg. Don t build higher than one metre without involving a structural engineer. These are called weeping holes.
A retaining wall s effect on the natural flow of water could impact your neighbors so some communities require homeowners to obtain a permit before construction commences. For a retaining wall that uses wall blocks the blocks have lips that fit into the course below locking them in place. Alternating planter 5 degree batter wall section pdf dwg.