Telephone: +44 (0)161 761 5109
http://cheethamhillconstruction.co.uk/sites/default/files/banner-images/Jetty%2027%2004%2011.JPG
Project
Partington Paper Mill
Client
SAICA
Value
£18.7million
Case Study

Partington Paper Mill

Project
Partington Paper Mill
Client
SAICA
Value
£18.7million
The Project

A series of contracts for a new paper recycling plant built at a former major BP fuel distribution site in Partington, Greater Manchester.

Site Clearance Works (value £360,000): Following the initial works (Habitat Creation Zone for Peel Holdings), the site was then in a position to be redeveloped and CHC was awarded the second phase of work by SAICA, the first contract on a £290million paper mill development. 

This included removal of all vegetation from the 16 ha site, together with the demolition and crushing of all reinforced concrete foundation bases, piles, storage tanks and underground chambers remaining from the site’s former use as an oil and petrol storage facility. 

The completion of this phase in November 2009 was the key, which opened up the site to full scale stabilisation works and piling platform construction.

Piling Platform Construction (value £6,555,000): The site was founded on very weak soils and contained hot-spot contamination issues requiring both remediation and stabilisation works to be undertaken. CHC’s bid for this design and construction phase in collaboration with Combined Stabilisation, Pennine Vibropiling and designers GHA Livigunn, proved to be the most advantageous. 

The solution developed by the construction team to induce and control primary ground settlement and to keep long term secondary settlement within predefined limits required an initial 120,000m³ of cut and fill earthworks by CHC and construction of a ‘band drain platform’ incorporating 25,000m³ of imported 6f2. 75000m3 of material was lime stabilised to obtain CBR’s of up to 15%.

Pennine Vibropiling, working closely in conjunction with CHC’s excavation teams, immediately followed behind to install nearly 75,000 vertical band drains up to 10m deep through the soft silts and dredged materials. These band drain areas were then surcharged with a combination of partly stabilised material and general excavated material totalling 265,000m³. 

Through careful monitoring of pore water pressure and settlement levels the surcharge was removed earlier than predicted. This was followed by a second pass of stabilisation and cementing and the placement of 30,000m³ sub base to provide the Client with the construction platforms for the piling and paper machine foundation construction.

Roads & Drainage (value £8,000,000): The construction of all underground pipe work, service infrastructure and roads for the paper mill was now able to commence. CHC was again successful in its bid for this next and important phase of the development and was awarded the project in May 2010. 

The fast track nature of SAICA’s construction schedule required the installation of a number of key site services and road areas by the end of June 2010, deadlines which CHC successfully delivered, allowing SAICA’s other major construction works to commence on programme. 

This phase of the project was completed in October 2011. CHC constructed 34,000m² of roads and 36,000m² of exterior concrete yard slabs and installed over 20km of sewers, ducting, earth cabling and fire mains.

Effluent Treatment Plant (value £3,300,000): Works comprised the construction of the factories effluent treatment plant in conjunction with specialist formwork contractor Offafix Ltd. Awarded in October 2010 and completed in July 2011. 

Some 6500m³ of reinforced concrete has been required to construct the above and below ground reinforced concrete storage and process structures Comprising a 21,000m3 RC above ground aeration tank, below ground RC pumping stations and RC tank plinths.

Works also included the construction of a partially buried 36m diameter secondary clarification tank, an above ground 27m diameter fresh water tank both constructed incorporating PCC post-tensioned walls on RC in-situ concrete bases.

Outfalls into Manchester Ship Canal (value £550,000): In June 2011, CHC was awarded the auger boring contract to construct the main outfall from the site into the adjacent canal. These works included the sinking of 2no 3.66 dia. segmented shafts and the installation of 150m of 600 dia. sewer using auger boring techniques.

Return to services