Difference between revisions of "Turf reinforcement"
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*Mats should be applied with soil fill technique: | *Mats should be applied with soil fill technique: | ||
**Grade the swale and smooth the top soil, removing any debris and large rocks, | **Grade the swale and smooth the top soil, removing any debris and large rocks, | ||
| − | **Seed with turf mixture, | + | **Seed with turf grass mixture, |
**Dig 150 mm anchor trench at the top of the channel, | **Dig 150 mm anchor trench at the top of the channel, | ||
| − | **Secure blanket into the trench with staples every 300 mm. Backfill and compact soil into the trench | + | **Secure blanket into the trench with staples every 300 mm. Backfill and compact soil into the trench, |
| − | **Unroll mat in the direction of flow. Staple as recommended by manufacturer | + | **Unroll mat in the direction of flow. Staple as recommended by manufacturer, |
| − | **Overlaps should be 150 mm and stapled. Upstream mat should always overlay the downstream mat | + | **Overlaps should be 150 mm and stapled. Upstream mat should always overlay the downstream mat, |
**Anchor the bottom end of the channel in a similar fashion to the top, | **Anchor the bottom end of the channel in a similar fashion to the top, | ||
| − | **Apply 15-20 mm of topsoil over the TRM, without the use of heavy machinery which can tear the mat and/or compact the soil | + | **Apply 15-20 mm of topsoil over the TRM, without the use of heavy machinery which can tear the mat and/or compact the soil, |
| − | **An [[Erosion control blankets|ECB]] may be applied to protect the surface through the first one or two years | + | **An [[Erosion control blankets|ECB]] may be applied to protect the surface through the first one or two years, |
**Irrigate until turf grass is established. | **Irrigate until turf grass is established. | ||
[[category: materials]] | [[category: materials]] | ||
Revision as of 14:35, 6 July 2017
Turf reinforcement mats (TRM) may be required in swales which are designed to convey higher velocity events. Most TRM are made of synthetic fibres and intended as a permanent part of the construction (unlike a temporary ECB).
- Mats should be applied with soil fill technique:
- Grade the swale and smooth the top soil, removing any debris and large rocks,
- Seed with turf grass mixture,
- Dig 150 mm anchor trench at the top of the channel,
- Secure blanket into the trench with staples every 300 mm. Backfill and compact soil into the trench,
- Unroll mat in the direction of flow. Staple as recommended by manufacturer,
- Overlaps should be 150 mm and stapled. Upstream mat should always overlay the downstream mat,
- Anchor the bottom end of the channel in a similar fashion to the top,
- Apply 15-20 mm of topsoil over the TRM, without the use of heavy machinery which can tear the mat and/or compact the soil,
- An ECB may be applied to protect the surface through the first one or two years,
- Irrigate until turf grass is established.