Straight web sheet piles are designed to form cylindrical structures - generally closed - retaining a soil backfill. The stability of constructions built up like that is guaranteed by the weight of the internal soil massive. Straight Web sheet piles are mostly used on projects where rock layers are close to ground level, where the excavation depth is very important or where anchoring would be difficult or even impossible.
Straight web sheet pile structures are realized as circular cells or diaphragm walls depending on the site characteristics or the particular requirements of the project.
The efforts developing in these sheet pile sections are essentially horizontal traction forces requiring interlocks especially designed for declutching resistance, corresponding to the horizontal force in the web of the pile.
Main applications of straight web sheet piles are:
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| Section | Dimensions | Perimeter of single pile |
Sectional area |
Mass per m |
Mass per m2 of wall |
Section modulus |
Moment of inertia |
Coating area* |
|
|---|---|---|---|---|---|---|---|---|---|
| L | e | ||||||||
| mm | mm | cm | cm2 | kg/m | kg/m2 | cm3 | cm4 | m2/m | |
| AS 500-9.5 | 500 | 9.5 | 138 | 81.3 | 63.8 | 128 | 46 | 168 | 0.58 |
| AS 500-11.0 | 500 | 11.0 | 139 | 90.0 | 70.6 | 141 | 49 | 186 | 0.58 |
| AS 500-12.0 | 500 | 12.0 | 139 | 94.6 | 74.3 | 149 | 51 | 196 | 0.58 |
| AS 500-12.5 | 500 | 12.5 | 139 | 97.2 | 76.3 | 153 | 51 | 201 | 0.58 |
| AS 500-12.7 | 500 | 12.7 | 139 | 98.2 | 77.1 | 154 | 51 | 204 | 0.58 |
| AS 500-13.0 | 500 | 13.0 | 140 | 100.6 | 79.0 | 158 | 54 | 213 | 0.58 |
*One side, excluding inside of interlocks
Note: all straight web sections interlock with each other.
Interlock strengths up to 6000 kN/m are possible. Please contact us for the related steel grade and further information.
