Excavation

Common labour factors for Excavation.

For a feasibility study, your Excavation breakdown is 20% labour, 15% material and 65% fixed costs.

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Excavation

Description

Man Hours

Unit

Site Clearance

Strip 50mm topsoil and remove from site (machine)

0.03

hrs/m3

Strip 50mm topsoil and cart to temporary stockpile on site (machine)

0.01

hrs/m3

Strip 100mm topsoil and cart to temporary stockpile on site (machine)

0.02

hrs/m3

Strip 150mm topsoil and cart to temporary stockpile on site (machine)

0.03

hrs/m3

Excavation, Backfilling and Filling

Hand Excavation in trenches not exceeding 1m deep

in sand

1.20

hrs/m3

in medium soil

2.20

hrs/m3

in heavy soil

3.30

hrs/m3

Hand Loading and Removal

in sand

1.00

hrs/m3

in medium soil

1.30

hrs/m3

in heavy soil

1.90

hrs/m3

Wheel not exceeding 50m, spread and level

1.25

hrs/m3

Backfilling and compaction

1.00

hrs/m3

Machine Excavation and backfilling in trenches not exceeding 1m deep, in medium soil

0.20

hrs/m3

Add

Backhoe

+ operator

0.20

hrs/m3

Front-end loader

+ operator

0.08

hrs/m3

Tipper

+ operator

0.10

hrs/m3

Vibrating plate

+ operator

0.10

hrs/m3

Basecourse filling in 150mm thick layers under slabs

1.00

hrs/m3

Planking and Strutting

Planking and strutting to excavation

Not exceeding 1.5m deep

0.20

hrs/m2

Not exceeding 3m deep

0.25

hrs/m2

Not exceeding 4m deep

0.30

hrs/m2

Surface Treatments

Sand Blinding to filling under slabs

25mm thick

0.06

hrs/m2

50mm thick

0.10

hrs/m2

Level and Grade Surface

0.05

hrs/m2

Membranes

Underlay, plastic film

0.03

hrs/m2

Excavation

Common labour factors for Excavation.

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Excavation

Common labour factors for Excavation.

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Search entire Labour Factor database

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