Structural · S-PNSNJ

Mat Slab at Dewatering Well

Materials

Concrete Masonry / CMU

Elements

Columns Floors / Slabs Foundations / Footings Drainage Anchors / Embeds Reinforcing

Connections

Rebar Splice / Development

About this detail

The assembly features a concrete mat slab and reinforcing per plan with a dewatering well mat depression measuring up to twenty-four inches square by eight inches deep, or a trench drain set in a high-strength grout bed with a maximum four-inch depression. Topping slabs with number five reinforcing bars at eighteen inches on center centered each way integrate with dowels matching the mat top reinforcing. Minimum concrete clearances are maintained at two and three inches as specified on the drawing, with lap splices per schedule. Notes direct that well locations by others must be submitted to the structural engineer of record for review and approval, and should be located away from columns and walls where possible to reduce supplemental reinforcing.

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