1.1.2-1
Piling mats/platforms
Component Information
- Code:
- 1.1.2-1
- Sequence:
- 1
- Unit:
- m2
- Sub-Element:
- 1.1.2 - 2 Specialist foundations
Piling mats/platforms
details, including thickness of mat/platform (mm), to be stated
Component Statistics
Measurement Rules
Included Items
Excluded Items
Measurement Rules (9)
Where components are to be enumerated, the number of components is to be stated.
The linear length of components is measured on the centre line of the component.
The area measured for piling mats/platforms is the surface area of the piling mat/platform.
The volume of excavated material for disposal arising from the piling is the cross-sectional area of the pile multiplied by the depth of the pile.
Quantity given for disposal is the bulk before excavating and no allowance is made for subsequent variations to bulk.
Other cost-significant components are to be described and identified separately.Such components are to be measured by area (m2) or linear measurement (m), or enumerated (nr) separately.
Curved work is to be described and identified separately.
Work to existing buildings is to be described and identified separately.
Where the contractor is only responsible for designing specific elements and/or components of the building project (i.e. not the entire building project), contractor-designed work is to be described and identified separately.
Included Items (23)
Piles, including: • precast concrete reinforced piles • precast prestressed concrete piles • precast reinforced segmental concrete piles • bored cast-in-place concrete piles • driven cast-in-place concrete piles • steel bearing piles • timber bearing piles • mini piles.
Permanent caissons.
Vibro-compacted columns.
Piling mats and platforms (installing, moving, modifying and removing on completion).
Piling rigs/other plant, including bringing to and removing from site, maintenance, erection, dismantling and moving piling rigs to each pile position.
Note: where information about ground strata is unknown, an allowance is to be made within the construction risk allowance for breaking through obstructions.Disposal of excavated material arising from piling, including tipping charges and landfill tax.
Note: where no contamination/remediation strategy report exists, an allowance is to be made within the construction risk allowance for the extra cost of disposing of contaminated material.Disposal of surface water and groundwater, where dewatering techniques not employed.
Cutting off excess lengths of piles.
Cutting out concrete to tops of piles and preparing pile heads and reinforcement for capping.
Grouting
Pile tests (e.g. load tests and integrity tests).
Pile caps.
Ground beams.
Trench and pit excavations for pile caps and ground beams, including earthwork support (including insertion and extraction of steel sheet piling if used).
Disposal of excavated material, including tipping charges and landfill tax. (Refer to note above about disposal of contaminated material).
Disposal of surface water and groundwater, where dewatering techniques not employed.
Consolidating and compacting formation level to receive pile caps and ground beams.
Blinding
Protection boarding for underside of pile caps and ground beams (e.g. to provide heave protection).
Concrete, reinforcement, formwork (temporary and permanent) and excavating and backfilling of working space required to facilitate placement of formwork.
Specialist concrete grades, including waterproof concrete and additives.
Sundry items.
Where works are to be carried out by a subcontractor, the subcontractor’s preliminaries, design fees, risk allowance, overheads and profit, with allowance for these to be made within unit rate applied to element or component.
Excluded Items (3)
Piles and caissons forming embedded retaining walls (included in sub-element 1.1.5)
Dewatering (included in sub-element 0.4.1).
Soil stabilisation (included in sub-element 0.4.2).
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