SITE INVESTIGATION ASPECTS OF THE SYDENHAM ROAD SEWER TUNNEL

This report, the first of a series of case history studies of tunnel projects made from the point of view of the site investigation, has been prepared with the generous co-operation of the Borough Engineer and Surveyor of the London Borough of Lewisham and his staff. Preliminary appraisal indicated London Clay under granular deposits. The site investigation contractor offered a very competitive price and subcontracted the boring and testing. Further boreholes for a route adjustment and for ground water measurements were put down by a drilling contractor employed and supervised by the Borough. The contractor found the site investigation fully adequate for tendering for pipe-jacking, and for specifying, tendering for and constructing the tunnel by the chosen alternative method using a shield and concrete segmental lining. Ground conditions at the face were systematically recorded. A number of services was encountered during construction, but no problems arose due to design, method of construction, or ground type or conditions.

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Dumbleton, M J
  • TOOMBS, A F
• Publication Date: 1976

Media Info

• Features: Figures; References;
• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Boreholes; Groundwater; Pipe jacking; Sewers; Tunneling
• Uncontrolled Terms: Site investigation
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 00141846
• Record Type: Publication
• Report/Paper Numbers: Supp. Rpt. 235 UC Res. Rpt.
• Files: TRIS, ATRI
• Created Date: Jan 16 1977 12:00AM