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Retaining Wall Design: TIEBACK SHEET PILE
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 | drainage requirement | global stability fos min (dimensionless) | height max ft (ft) | height min ft (ft) | min embedment depth ft (ft) | reinforcement notes | typical applications |
|---|---|---|---|---|---|---|---|---|
| TIEBACK SHEET PILE | Granular or stiff cohesive soils; avoid very soft clay | Sheet pile provides earth/water cut-off; drain through weep holes above water | 1.5 | 80 | 20 | 0.2 | High-capacity grouted anchors or strand tendons; unbonded length bypasses failure plane; locked off at design load | Deep urban excavations; permanent basement walls; bridge construction |
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