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Post-Tensioned Demolition Churchill Way Flyover Demolition
Demolition engineering and associated temporary works design of two flyovers in central Liverpool. A highly complex project with a large number of engineering design challenges and environmental constraints.
Facade Retention – Majestic Leeds
Facade retention of a fire damaged historic building in the centre of Leeds to enable the demolition and reconstruction of the internal structure.
Eggborough Power Station Cooling Tower - Blowdown
Blowdown demolition of eight cooling towers at a decommissioned coal fired station in North Yorkshire. These works were part of the overall demolition of Eggborough Power Station which was decommissioned in 2018.
Prop Installation - Silvertown Tunnel TBM
The installation and removal of propping with tight tolerances and site constraints for the Silvertown TBM launch chamber.
Post-Tensioned Bridge Demolition- Spence Lane
Demolition of a post-tensioned footbridge in Leeds city within a strict time period with constrained crane heights and a limited collapse radius.
Post-Tensioned Rail Bridge Demolition- M62 Castleton
Demolition of a post-tensioned railway bridge deck over the M62. Existing abutments and the central pier were retained for the replacement bridge.
Demolition Engineering - Newport Centre
Demolition of a sports centre in Newport. Requiring complex demolition engineering due to the complexity of the structure, proximity to the main road and basement groundwater.
Bridge Demolition - Darby House Footbridge Dismantling
Andun were appointed to undertake the demolition engineering for the dismantling of Darby House footbridge. This project was particularly complex due to the articulation of the structure.
Demolition Engineering - Pontypridd Retail Complex
Demolition engineering to demolish a large waterfront retail structure located on a live high street with significant space and access constraints.
Cat 3 Check - Thames Tideway Sewer Slab Lifting Arrangement
Delivery of a Cat 3 check to verify the design of the gantry frame, lifting lugs, lifting arrangement and stability to facilitate lifting the 1100 Tonne Thames Tideway sewer cover slab into position.
Facade Retention - The Wheelhouse Stockport
Demolition sequencing and facade retention design to enable the restoration of a historic grade II listed riverside wheelhouse in Stockport, with significant access and sequencing constraints.
Post-Tensioned Bridge Demolition - A3 Cockrow
Demolition of a lightweight post-tensioned bridge over the A3 as part of a broader scheme of infrastructure improvements.
Footbridge Demolition - A3 Old Wisley Lane Bridge
Demolition of a footbridge over the A3, which was constrained by environmental concerns, the proximity of the replacement bridge and service protection requirements.
Bridge Demolition - M25 Clearmount
The demolition of a steel and concrete bridge over the M25 with significant time and stakeholder pressure due to the first full weekend closure of one of the busiest parts of the UK road network to facilitate the work.
Bridge Replacement - Mytholmroyd
Replacement of a two-span footbridge over the River Calder in Yorkshire with significant constraints during the demolition and replacement installation phase.
Tower Crane Grillage Design - One Leadenhall
Design of tower crane grillage for an internal climbing tower crane used in the construction of One Leadenhall, a 35-storey structure adjacent to Leadenhall Market in Central London.
Extensive Temporary Works & Demolition Engineering - Bristol Beacon
The Bristol Beacon project was a large-scale refurbishment initiative that was completed over a five-year period and involving extensive temporary works design and demolition engineering.
Internal Climbing Tower Cranes & Chocking Frames - One Leadenhall
Design and sequencing of two internal climbing tower cranes, including chocking frames and associated temporary works used in the construction of One Leadenhall a 35-storey structure adjacent to Leadenhall Market in Central London.
Prestressed and Post-Tensioned Flyover Demolition - Regent Street
Demolition engineering case for removal of a flyover at Regent Street in central Leeds with prestressed and post-tensioned structural elements
Top Down Demolition Of LPS Structure - Goscote House
Top down demolition of a 23 storey high rise Large Panel System (LPS) structure in Leicester City Centre.
OPC Retaining Wall Foundation - Barking Riverside
OPC retaining wall foundation case study for a project on challenging ground, to support a brownfield housing development in London.
Crane Dismantling - Greenock Docks
Demolition engineering for the sequential dismantling of a large container crane adjacent to a live port terminal at Greenock Port.
Crossrail Formwork Design - Eleanor Street
Delivery of an alternative more efficient and effective formwork design at the Eleanor Street Crossrail ventilation shaft.
Load Testing - LPS Structure - Hartopp & Lannoy
Load testing to justify the planned use of a 3 tonne excavator on the Hartopp and Lannoy LPS structure in Hammersmith.
Protection Screen Design - Euston PSB
Protection screen design to protect the railway during the demolition of an old power signal box adjacent to Euston station.
Bridge Replacement - Three Colts Lane
Bridge replacement project involving the deconstruction and removal of a deteriorated structure, navigating numerous site constraints.
Push Down Demolition - Shotton Paper Mill
Demolition engineering and a range of temporary works design for the removal of large portal frames, specialist structures and a large chimney from the Shotton Paper Mill site.
Cut & Carve Demolition - Premier House
Complex cut and carve demolition project that required a number of different propping solutions and temporary works.
Complex Demolition Engineering - Gladstone Docks
Complex demolition engineering to facilitate the removal of various obsolete heavy plant at Gladstone Docks in Liverpool.
Chemically Stabilised Piling Platform - Goodluck Hope Project
The design of an OPC stabilised piling mat to support various piling rigs at the Goodluck Hope project in East London.
Tower Crane Foundation & Temporary Rail Embankment Support - Murieston Crescent
Design of a tower crane foundation and temporary rail embankment support on a project at Murieston Crescent Edinburgh.
Footbridge Underpinning & Extensive Temporary Works - Kidbrooke Square, London
Temporary works design support for the enabling works for the Kidbrooke Square development of six tower blocks comprising 413 units in central London.
Bridge Demolition Engineering - Heartlands Parkway
Demolition of a 100-metre three-span road bridge over an active railway. The bridge was demolished over four weeks to make way for the northern section of HS2’s phase one route between London and the West Midlands.
Bridge Demolition Engineering - SAS13 Viaduct
Overview of the bridge demolition engineering for the removal of a 125m viaduct across the Stetchford to Aston (SAS) rail line.
Lifting Design & Sequencing - Spooner Row
Demolition engineering and lifting design for the removal of a timber signal box at Spooner Row in Norfolk.
Scunthorpe Steelworks - Push Down/Blow Down Demolition
Demolition engineering and methodology for the removal of two chimneys at Scunthorpe Steelworks.
White Hart Lane Phase 1
Andun worked with the demolition contractor DSM to provide demolition sequencing and temporary works designs on the White Hart Lane redevelopment during both phases of the demolition.
Centre Point Complex Redevelopment
Andun was appointed in 2014 to supply temporary works design services on behalf of the demolition contractor John F Hunt for the £300m Grade II listed Centre Point complex redevelopment.
Landmark Manchester
Andun provided temporary works design and demolition sequencing support to the theatre demolition & basement propping elements of the £100m Landmark redevelopment in Manchester.
Deptford Project
The Deptford project is a £47m redevelopment which aims to regenerate a significant part of Deptford town centre.
Derwent Tower
Derwent Tower was an 86m high reinforced concrete housing block (known locally as Dunston Rocket) located in Gateshead. The building was of Brutalist design with a striking appearance that was completely different to the normal tower blocks around the UK.
Liverpool St Helens
The works on the Liverpool-St Helens project included the demolition of a pair of MAN type gasholders together with additional in-ground holders and other ancillary works.
Reading Station
Andun Ltd were approached by HCJV (Hochtief Costain Joint venture) to provide a methodology and Form C documentation for demolishing the original footbridge located at Reading station.
Loughor Viaduct
As part of the redoubling works to the South Wales Main Line between Dyffryn and Cockett, the existing 225m long Loughor viaduct had to be replaced with a new structure designed to modern standards.
Birmingham New Street
New Street station is one of the busiest in the UK and is used by 140,000 passengers a day; approximately double the number the station was originally designed to deal with when it was rebuilt in 1967.
Crossrail Whitechapel Station Works
Andun were appointed by Kilnbridge to provide the calculations, and demolition sequence necessary to produce a Form C for the partial demolition of bridge D1246 as part of the Crossrail works.
Western Valley Lines
To facilitate the electrification of the South Wales Main Line numerous bridges are being demolished and rebuilt to provide clearance for the new OLE. Andun were appointed by Forshaw Demolition to provide Engineering services for two bridge demolition jobs.
Great Western Main Line (GWML) Electrification works
To facilitate the electrification of the GWML numerous bridges are being demolished and rebuilt to provide clearance for the new OLE. Andun were appointed by Hochtief UK to provide Engineering services for the a number of these bridge projects on the GWML.
LOCROS Demolition and Temporary Works
Andun were appointed by Hochtief construction (UK) Ltd at the Tender stage to assist with the LOCROS demolition and temporary works proposals.
Walkway Removal, Propping & Crane Positioning – Manor Park Station
The removal of the raised walkway at Manor Park station required the design of a series of temporary works including; a demolition scheme, propping and a crane position.
London Waterloo
Andun provided temporary works designers for an award-winning demolition project at London Waterloo railway station.
Cat 3 Checks
Andun provides independent BS5975 compliant Cat III checks for the construction industry.
Crane Design
Andun provide crane design services for projects where access, load or work sequencing challenges require a bespoke design solution.
Emergency Works
Emergency temporary works require practical solutions to be delivered in a short timescale in a high pressure and often high-profile environment. Engineers providing emergency temporary works design must be able to deliver the correct design solution despite quickly and efficiently.
Pull Down/Blow Down of Structures
Effective use of pull down or blow down demolition techniques can shorten demolition timelines compared to progressive or top down demolition approaches. This approach requires sufficient space to implement.
Upper Holloway
Assessment of an existing steel walkway structure, installation of new temporary foundations and sequence for cutting and moving the walkway. The scheme was DDA compliant and included the realignment of the station entrances. New hoardings were designed to secure the site.
Twickenham
Andun were originally appointed by the demolition contractor to produce Network rail submissions covering the demolition of a large section of Twickenham station. The works included the removal of 3No. Bridges, stair cases and platform structures.
Bridge Demoliton Engineering, Crane Positioning & Temporary Works – Highbury Corner
Reconstruction of two 100m long bridges which spanned the North & East London Line directly outside Highbury & Islington Station. The bridges effectively create a pair of tunnels which severely access to the underside of the bridge decks.
Truss Pull Down – White Hart Lane Demolition
At the end of the 2016/2017 season, the second phase of the White Hart Lane demolition commenced as Tottenham moved to Wembley as the redevelopment took place.
CAT 3 Check – Blow Down Demolition Scunthorpe
A recent project where Andun provided CAT 3 checks was a blow down at Scunthorpe steelworks for Sam Evans and Sons.
MAN Gas Holder Demolition – Southall
MAN gas holder demolition sequence design on a limited-access site in close proximity to a live rail environment and high-pressure gas lines.
Crane Movement & Pull Down Demolition – HS2 Willesden
Pull down demolition design, foundation assessment and sequencing of movement and demolition of 3 container cranes for John F Hunt Limited on behalf of Costain Skanska JV for HS2 in Willesden
Wiggins Gas Holder Demolition – Oxted
The job involved crane positioning, finite element analysis (FEA) and demolition design methodology, for the recently completed demolition of a Wiggins type gas holder, positioned adjacent to the main Victoria railway line.
A13 Bridge Demolition Saffron Gardens
Demolition engineering for the removal of a farm access bridge over the A13 Andun were contracted by the demolition contractor Clarke Demolition to provide the demolition engineering and sequence for the project.
Rail Bridge Demolition – Werrington Grade Separation
Demolition engineering for the removal of a rail footbridge over the East Coast Mainline as part of the Werrington grade separation project near Peterborough
Ardleigh Green – STIP Bridge Demolition & Replacement
The A127 bridge was demolished and replaced with two new dual lane road carriageways and a service bridge as part of the Structures & Tunnels Investment Portfolio (STIP) for TFL.
LPS Demolition – Coventry Point
Demolition engineering methodology of two linked Large Panel Structures (LPS) in Coventry City Centre as part of a £300m urban regeneration project.
Basement Propping – OLD Granada Studios
Basement propping and temporary works to demolish the existing structure at an iconic location in Manchester. Project aim was to reduce the level of the basement, construct pile rafts to serve as core foundations and facilitate the permanent works of the new basement structure.
Masonry Arch Assessment – Putney Bridge
Design and assessment to lift a Tunnel Boring Machine (TBM) by a mobile crane positioned on the surface of a masonry arch bridge spanning the River Thames.