CASE STUDY - Cooper House, Cheshire House & Derby House, Manchester Wilson Bowden Developments Project: Cooper, Derby & Cheshire House, Booth Street, Manchester Client: Wilson Bowden Developments Ltd, 4 Park Place, Leeds, LS1 2RU Project Co-ordinator: Mr. Wayne Martin, Wilson Bowden Developments Ltd, 5th Floor, Fountain House, Fountain Street, Manchester, M2 4EE Planning Supervisor: Mr. Peter Kendall, Wilson Bowden Developments Ltd, Cartwright Way, Forest Business Park, Bardon Hill, Leicestershire, LE67 1UB Principal Contractor: Walter Forshaw Ltd, 7 King Street, Westhoughton, Bolton, BL5 3AY Engineering Consultant: Healey Brown Partnership, Brunel House, 63 Dale Street, Milnrow, Rochdale, OL16 3NJ Contract Description: The soft-strip, deconstruction, demolition and site clearance of a seven-storey office building with basement car park. Site adjacent to Lloyds TSB business centre with office buildings on all other sides. Value: £750,000 Timescale: June 2006 to January 2007 Building Dimensions: 75m x 25m x 24m high Building Construction: Derby House and Cheshire House were seven-storey office buildings with adjacent to Cooper House, a five-storey office building. There was a basement car park beneath all blocks and two live network sub-stations that had to remain live throughout the demolition works. Derby House was directly adjacent to the Lloyds TSB Business Centre. Demolition Method: Full height scaffolding was erected to all floors with monarflex sheeting and boarding to the top lifts. The top floors were deconstructed using mini-diggers and bobcats with debris deposited down the lift shaft. The whole of the section adjacent the Lloyds TSB Business Centre was also deconstructed in this manner. The lower floors were demolished using Liebherr 954 long reach demolition excavator fitted with a concrete pulverisor and 360o rotation once the scaffolding had been dismantled. A substantial remedial kingpost system was installed below ground level to retain road & pavement integrity for the subsequent construction work. back to top