CBEM carries out basement excavation and bulk earthworks for building sites and subdivisions, from bulk cut and fill to detailed excavation and final trimming.
Scope of works
Site preparation and bulk excavation
Cut and fill, including placement of engineered fill
Detailed excavation to formation levels
Material handling, removal and site trimming
Construction
Before excavation starts, we review ground conditions, locate existing services and plan site access. We stage the excavation to suit the ground support system and keep erosion controls in place as work progresses.
Quality checks
We check excavation levels and arrange geotechnical inspections and fill compaction testing as specified for the project.
We install shoring and piles for excavation support and building foundations, working to the structural and geotechnical design.
Scope of works
Excavation support and retaining systems
Foundation piling to the specified design
Staged excavation and support installation
Construction
We plan rig access, working platforms and the excavation sequence with the project engineers, taking account of nearby structures and services.
Quality checks
We maintain installation records and arrange the inspections and testing specified by the engineer. If ground conditions differ from the design assumptions, we refer them to the engineer before proceeding with the affected work.
We install stormwater drainage and on-site detention systems, including pipes, pits, storage structures and outlet controls.
Scope of works
Stormwater pipes, pits and drainage structures
On-site detention storage and outlet controls
Connections to approved discharge points
Trench backfilling and surface reinstatement
Construction
Drainage levels and alignments are checked against other services before installation. The work is staged with earthworks and road construction to maintain access and avoid clashes.
Quality checks
Before backfilling, we check bedding, pipe levels and connections. We also check detention system components against the approved drawings and provide inspection, test and as-built records at handover.
We carry out sewer and water infrastructure works for subdivisions and civil developments, from trench preparation and pipe laying to backfilling and reinstatement.
Scope of works
Trenching, bedding and pipeline installation
Sewer maintenance structures and water fittings
Backfilling, compaction and reinstatement
Connections to existing networks
Construction
We plan the work around existing services and the asset owner’s inspection stages. We engage the required authorised providers for work on authority assets and connections to existing networks.
Quality checks
Testing follows the asset owner’s requirements and may include pressure or leakage tests, sewer CCTV and compaction tests. We compile the construction records needed for acceptance.
We build roads and pavements for subdivisions and development access, including subgrade preparation, granular pavement layers and asphalt surfacing.
Scope of works
Subgrade preparation and trimming
Placement of pavement subbase and base layers
Asphalt surfacing
Pavement tie-ins and reinstatement
Construction
We sequence pavement construction around underground services and crossings, and plan site access and traffic arrangements around the roadworks.
Quality checks
We check pavement materials, layer thicknesses, compaction and levels. Inspections and testing are completed at the specified stages before the next layer or surface is placed.
We construct kerb and gutter, footpaths, crossings and associated concrete works for subdivisions and civil projects.
Scope of works
Kerb and gutter
Footpaths, shared paths and access crossings
Associated concrete slabs and minor civil structures
Construction
The work covers set-out, base preparation, formwork and reinforcement where needed, followed by placing, finishing and curing the concrete.
Quality checks
We check levels, drainage falls, dimensions and finish against the drawings. We arrange pre-pour inspections and concrete testing as specified for the project.
We build retaining walls for subdivisions and civil projects, including foundation preparation, wall construction, drainage and backfill.
Scope of works
Foundation excavation and preparation
Wall construction to the specified system
Drainage behind retaining structures
Backfilling and compaction
Construction
We build to the engineered wall details and stage the work with surrounding earthworks. Where specified, we arrange foundation inspections before building the wall.
Quality checks
We check wall alignment, drainage and backfill as work progresses. We arrange the engineer’s inspections and compile the required completion records.
CBEM carries out demolition and site remediation for residential and civil developments, preparing sites for earthworks and construction.
Scope of works
Demolition of existing buildings and structures
Removal of redundant slabs, pavements and footings
Contaminated soil excavation and disposal
Coordination of asbestos and hazardous material removal
Construction
We review site conditions, service disconnections and the demolition sequence before work starts. Dust, noise and access controls are planned around neighbouring properties. Remediation follows the project requirements, with licensed specialists engaged where required.
Quality checks
We coordinate waste classification, disposal records and the inspections required for the work. Environmental consultants carry out validation sampling where specified, with clearance and validation documentation provided before the next stage begins.