Pipe Installation From Perco

SHAFT SINKING CASE HISTORY

A Victorian brick egg sewer runningthe length of Dale Street, one of thebusiest streets in Liverpool City Centrehad collapsed half way along thestreet.

The area has been heavily developedover three centuries and the groundsurrounding the collapse is tightlypacked with services for the manyo�ces and public buildings in theDale Street area.

To avoid any possible damage toservices and disruption to local

premises, we recommended that weshould hand dig a shaft to thea�ected sewer. This meant that everyservice pipe below the street could beprotected during the works.

A seven metre deep timber shaft wasconstructed to British Standards. Thesewer top was then exposed andrepaired.

Following repair and testing, the shaftback�lled, with special attentionbeing paid to services pipes runningacross the shaft. The carriageway was

then reinstated. The project wascarried out by Perco’s specialist teamof tunnellers and shaft builders over athree week period.

For more information regardingthis project please contact ourOperations Director, Andy Fallon on+44 (0) 115 933 5000

Perco Engineering Services LtdThe Old Nurseries, Nottingham Road, Radcli�e-on-Trent Nottingham NG12 2DUTel: +44 (0)115 933 5000 Fax: +44 (0)115 933 4692Email: info@perco.co.uk Web: www.perco.co.uk/services/shaft-sinking.aspx

Client: Daniel Contractors/United Utilities

Project: Shaft sinking, Dale Street, Liverpool

Sub-contractor: Perco Engineering Services