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LANDSCAPE WALLS. Raised bed Prevent erosion LANDSCAPE WALLS Level planting areas.

Dec 16, 2015

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Agatha Rogers
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Page 1: LANDSCAPE WALLS. Raised bed Prevent erosion LANDSCAPE WALLS Level planting areas.

LANDSCAPE WALLS

Page 2: LANDSCAPE WALLS. Raised bed Prevent erosion LANDSCAPE WALLS Level planting areas.

LANDSCAPE WALLS

• Raised bed

• Prevent erosion

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LANDSCAPE WALLS

• Level planting areas

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LANDSCAPE WALLS

• Limit to 4’ high

• Course: row of material along the wall

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WALL LAYOUT

• Locate the front of the wall and stake

• Offset stakes to allow room to work

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BASE PREPARATION• Base is ¾” to 1” crushed stone

– 6” deep– 12” wider than wall

• Vibratory plate

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BASE PREPARATION

• The first course will be below grade to improve stability

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BASE PREPARATION

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DRAINAGE BEHIND WALLS

• Wall failure often due to water build-up

• Weepholes every 6 to 8 feet

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DRAINAGE BEHIND WALLS

• Drain tile on walls that exceed 2’• Drainage gravel around drain tile

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DRAINAGE BEHIND WALLS

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DRAINAGE BEHIND WALLS

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DRAINAGE BEHIND WALLS

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Drainage

• http://www.youtube.com/watch?v=oSlUy18Vttk

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LANDSCAPE FABRIC

• Fabric placed behind wall

• Reduce soil movement through material

• Optional

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BACKFILL

• Backfill with soil after every couple of courses

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STABILIZTION

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STABILIZTION

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STABILIZTION

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STABILIZTION

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STABILIZTION

Batter is the leaning or stepping back of a wall

• Stepping: 1 to 2” for each foot of wall height

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STABILIZTION

Batter is the leaning or stepping back of a wall

• Leaning: ¼” fall from front to back

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STABILIZTION

Anchoring• Verticals: vertical timbers in front of

wall

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STABILIZTION

Nope.

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STABILIZTION

Anchoring• Deadman: horizontal anchors built

into the hill

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STABILIZTION

Deadman

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STABILIZTION

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Deadman Stabilization

• http://www.youtube.com/watch?v=MSbYdfLa15Y

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STABILIZTION

Anchoring• Geogrid: geotextile anchors, like

deadman

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DRAINAGE BEHIND WALLS

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Page 40: LANDSCAPE WALLS. Raised bed Prevent erosion LANDSCAPE WALLS Level planting areas.

Geogrid

• http://www.youtube.com/watch?v=WFJ7CnYbppg

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STABILIZTION

Terracing: short walls stepped back from each other

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Terracing Wall

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Terracing Wall

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LANDSCAPE TIMBERS

• 6” x 6” or larger• Treated lumber

– Railroad ties treated with creosote

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LANDSCAPE TIMBERS

Vertical Construction

• Trench equal to the height of wall

• Staggered in height for interest

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LANDSCAPE TIMBERS

Vertical Construction

• Attach 2x6 along the back

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LANDSCAPE TIMBERS

Vertical Construction

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LANDSCAPE TIMBERS

Vertical Construction

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LANDSCAPE TIMBERS

Vertical Construction

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LANDSCAPE TIMBERS

Horizontal Construction

Stacked method

• Vertical seams line up

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LANDSCAPE TIMBERS

Horizontal Construction

Stacked method

• Install vertical timbers at seams

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LANDSCAPE TIMBERS

Horizontal Construction

Stacked method

• Timbers are anchored with 12” spikes or ½” rebar

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LANDSCAPE TIMBERS

Horizontal Construction

Staggered method

• Seams like brickwork

• Support with batter and spiking

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BLOCK WALLS

Pinned blocks

• Pins lock courses together

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BLOCK WALLS

Pinned blocks

• Fill spaces with stone

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BLOCK WALLS

Pinned blocks

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BLOCK WALLS

Lipped blocks

• Lip on bottom-back provides stability and batter

• Glue capstones

Page 63: LANDSCAPE WALLS. Raised bed Prevent erosion LANDSCAPE WALLS Level planting areas.

BLOCK WALLS

Lipped blocks

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BLOCK WALLS

Free blocks

• Glue blocks together

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BLOCK WALLS

Giant blocks

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BLOCK WALLS

Giant blocks

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DRY-LAID STONE

• Installed without mortar between the stones

• Irregular thicknesses

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DRY-LAID STONE

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DRY-LAID STONE

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MORTAR STONE WALL

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MORTAR STONE WALL