sheet pile design
sheet pile design
(OP)
Would someone be able to estimate unit costs for a sheet pile design i have? This is a permanent retaining structure on a lake where i would backfill behind the wall with gravel and construct a concrete walkway over the gravel (walkway is for pedestrians so not load bearing). The calculations were done with assumptions about piles driven in sand with granular backfill. I designed a 14' total height sheet pile with 6' depth of penetration. wall length is about 450 linear feet. i calculated the maximum moment to be about 5 kip-ft and then a section modulus around 2.05 cubic inches. Was afraid the section modulus was too low (sheet pile might face problems with bending?) so i increased it to 10 cubic inches (the thickness of the wall would also increase which would improve resistance against rusting). Based on this i chose a SZ-15 section (I am using cold rolled sheet pile). Would anyone know approximate unit costs for the sheet pile and maybe delivery costs? I'm finding $40/linear ft in places but wanted to make sure. Also, does anyone have recommendations about type of gravel i would use and then maybe unit costs for that?





RE: sheet pile design
skyline steel http://www.skylinesteel.com/
LB Foster http://www.lbfoster.com/
RE: sheet pile design
The walls I design, with 50' long sheets, waler, and tie rods or soil anchors generally cost between $2,500/LF and $5,000/LF.
DaveAtkins
RE: sheet pile design
I have $600 per linear foot ($50 per square foot), 12 foot long piles, no anchors, installed in the dry. Price does not include general conditions, overhead, bonds, insurance, profit or taxes. you should get a budgetary quote from a supplier or a contractor. price also does not include cutting piles to length, driven to final elevation.
RE: sheet pile design
www.PeirceEngineering.com
RE: sheet pile design
RE: sheet pile design
RE: sheet pile design
If the lake level does not vary except over a long time period, the water on both sides of the wall should be fairly even and there would be little or no unbalanced (lagged) hydrostatic pressure. However, if you are installing the SSP and then backfilling behind the SSP, it is wise (cheap insurance) to backfill with permeable soils or clean crushed stone.
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www.PeirceEngineering.com