Utility protection slab

A reinforced concrete slab to carry plant over a buried pipe or cable, at the surface or on EPS.

The tool assists — the responsible engineer checks and approves.

Project name

Company (shown on the calculation note header)

Calculation ref

Revision

Designer (TWD)

Checker

Utility

Pipe / duct outside diameter

50 – 3000 mm

Cover — existing surface to pipe crown

0.25 – 5 m

Protection arrangement

Plant (type / model / configuration)

Plant data source

Contact

Load per wheel / track

10 – 1000 kN

Tyre pressure

100 – 1500 kPa

Maximum speed on the slab (site control)

1 – 80 km/h

Dynamic amplification factor (DAF)

1 – 2

Reference for the DAF

Allowable added vertical stress at the pipe crown (asset owner)

5 – 500 kPa

Asset owner's reference for the allowable stress

Factor of safety on the crown stress

1 – 3

Formation bearing — basis

Allowable bearing pressure of the formation

10 – 1000 kPa

Slab type

Concrete strength fck

16 – 50 MPa

Reinforcement fyk

250 – 600 MPa

Cover to reinforcement

20 – 75 mm

Inputs are saved on this device automatically.