landscape walls. raised bed prevent erosion landscape walls level planting areas
TRANSCRIPT
LANDSCAPE WALLS
LANDSCAPE WALLS
• Raised bed
• Prevent erosion
LANDSCAPE WALLS
• Level planting areas
LANDSCAPE WALLS
• Limit to 4’ high
• Course: row of material along the wall
WALL LAYOUT
• Locate the front of the wall and stake
• Offset stakes to allow room to work
BASE PREPARATION• Base is ¾” to 1” crushed stone
– 6” deep– 12” wider than wall
• Vibratory plate
BASE PREPARATION
• The first course will be below grade to improve stability
BASE PREPARATION
DRAINAGE BEHIND WALLS
• Wall failure often due to water build-up
• Weepholes every 6 to 8 feet
DRAINAGE BEHIND WALLS
• Drain tile on walls that exceed 2’• Drainage gravel around drain tile
DRAINAGE BEHIND WALLS
DRAINAGE BEHIND WALLS
DRAINAGE BEHIND WALLS
Drainage
• http://www.youtube.com/watch?v=oSlUy18Vttk
LANDSCAPE FABRIC
• Fabric placed behind wall
• Reduce soil movement through material
• Optional
BACKFILL
• Backfill with soil after every couple of courses
STABILIZTION
STABILIZTION
STABILIZTION
STABILIZTION
STABILIZTION
Batter is the leaning or stepping back of a wall
• Stepping: 1 to 2” for each foot of wall height
STABILIZTION
Batter is the leaning or stepping back of a wall
• Leaning: ¼” fall from front to back
STABILIZTION
Anchoring• Verticals: vertical timbers in front of
wall
STABILIZTION
Nope.
STABILIZTION
Anchoring• Deadman: horizontal anchors built
into the hill
STABILIZTION
Deadman
STABILIZTION
Deadman Stabilization
• http://www.youtube.com/watch?v=MSbYdfLa15Y
STABILIZTION
Anchoring• Geogrid: geotextile anchors, like
deadman
DRAINAGE BEHIND WALLS
Geogrid
• http://www.youtube.com/watch?v=WFJ7CnYbppg
STABILIZTION
Terracing: short walls stepped back from each other
Terracing Wall
Terracing Wall
LANDSCAPE TIMBERS
• 6” x 6” or larger• Treated lumber
– Railroad ties treated with creosote
LANDSCAPE TIMBERS
Vertical Construction
• Trench equal to the height of wall
• Staggered in height for interest
LANDSCAPE TIMBERS
Vertical Construction
• Attach 2x6 along the back
LANDSCAPE TIMBERS
Vertical Construction
LANDSCAPE TIMBERS
Vertical Construction
LANDSCAPE TIMBERS
Vertical Construction
LANDSCAPE TIMBERS
Horizontal Construction
Stacked method
• Vertical seams line up
LANDSCAPE TIMBERS
Horizontal Construction
Stacked method
• Install vertical timbers at seams
LANDSCAPE TIMBERS
Horizontal Construction
Stacked method
• Timbers are anchored with 12” spikes or ½” rebar
LANDSCAPE TIMBERS
Horizontal Construction
Staggered method
• Seams like brickwork
• Support with batter and spiking
BLOCK WALLS
Pinned blocks
• Pins lock courses together
BLOCK WALLS
Pinned blocks
• Fill spaces with stone
BLOCK WALLS
Pinned blocks
BLOCK WALLS
Lipped blocks
• Lip on bottom-back provides stability and batter
• Glue capstones
BLOCK WALLS
Lipped blocks
BLOCK WALLS
Free blocks
• Glue blocks together
BLOCK WALLS
Giant blocks
BLOCK WALLS
Giant blocks
DRY-LAID STONE
• Installed without mortar between the stones
• Irregular thicknesses
DRY-LAID STONE
DRY-LAID STONE
MORTAR STONE WALL
MORTAR STONE WALL