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Main Works Earthworks - Bulk Excavation
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Descriptions
The scope of works for this package is the bulk excavation of made ground, alluvial material and crag sand from the Main Construction Area (MCA) and transportation to either the suitable material stockpiles or unsuitable material disposal areas within the Temporary Construction Area (TCA), to allow for the placement of backfill material for the nuclear plant building foundations. The scope will also include for all material testing required by the specification and the management of the stockpiles and unsuitable material disposal areas. The backfill placement (not part of this scope) will commence in available areas while the bulk excavation is still in progress within the MCA. The essence of the bulk excavation operation, together with the subsequent backfill placement, is to enable commencement construction of Units 1 and 2 on the earliest practicable dates.
The bulk excavation quantities, by type are:
Made Ground including Crag Sand - 912,000 m3
Alluvial Deposits, including peat - 914,000 m3
Crag Sand - 1,443,000m3
The key elements of the scope are:
Bulk Excavation:
Excavation and loading into transport vehicles (typically 45T all -terrain dump trucks) of made ground, alluvial deposits and Crag sand within the MCA.
Assessment of material suitability or otherwise (jointly with CWA) including testing as necessary.
Marshalling and management of vehicles and equipment within the MCA.
Maximising excavation of the three primary material types, recognising that excavation at the interface between layers will result in some mixing.
Transport and Discharge:
Transport to the storage or disposal locations within the TCA, using the segregated heavy haul road. This haul road will be managed by the CWA and will be used primarily by material-hauling vehicles for the bulk excavation works and backfilling operation.
Discharge as directed by the stockpile managers (management of the suitable material stockpiles and disposal areas will be by the CWA).
Testing to verify compliance with the specification, in accordance with the approved Quality Plan.
Shaping and compaction of stockpiles and disposal areas, in accordance with the specification and CWA direction
Timeline
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Tender Regions
CPV Codes
45112000 - Excavating and earthmoving work
45520000 - Hire of earthmoving equipment with operator
45112500 - Earthmoving work
43210000 - Earthmoving machinery
43200000 - Earthmoving and excavating machinery, and associated parts
43310000 - Civil engineering machinery
Keywords
grading
earthmoving
site excavation
land grading
earth diggers
excavators
mass excavation
backhoe loaders
loader hire
soil movers
soil shifting
earthmoving work
soil relocation
earth relocation
bulk earthwork
trenching
excavator rental
land shaping
site leveling
ground moving
construction diggers
trenching equipment
infrastructure machinery
site clearance machines
earthmoving machines
major engineering plant
public works equipment
earthworks machinery
excavation vehicles
bulldozer with operator
terrain reshaping
material handling
earthmoving machinery
construction earth equipment
excavating and earthmoving work
civil engineering machinery
earthmoving equipment hire with operator
site preparation equipment hire
construction site machines
Workflows
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