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Retaining Wall Design: SEGMENTAL BLOCK MSE
Typical design parameters for common retaining wall types — height ranges, base width ratios, embedment depth, stability factors of safety, backfill and drainage requirements
| wall type | backfill requirement | base width to height ratio max (dimensionless) | base width to height ratio min (dimensionless) | drainage requirement | global stability fos min (dimensionless) | height max ft (ft) | height min ft (ft) | min embedment depth ft (ft) | overturning fos min (dimensionless) | reinforcement notes | sliding fos min (dimensionless) | typical applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SEGMENTAL BLOCK MSE | Compacted granular fill; max 35% passing #200; phi>=28 deg | 0.7 | 0.6 | Drainage aggregate directly behind facing; collector pipe at base | 1.5 | 20 | 3 | 0 | 2 | Geogrid reinforcement at specified vertical intervals; connection strength check required | 1.5 | Commercial and residential; landscape walls; low-cost highway applications |
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