DESIGN AND CONSTRUCTION OF THE JUBILEE LINE EXTENSION TUNNELS

The Jubilee Line Extension was the first part of the London Underground rail network to enter the difficult waterlogged sands and gravels in south east London. However, during its construction, very few problems were experienced with the earth pressure balance tunnelling machines used. This paper describes the tunnel linings, then discusses some of the many design and construction innovations used. Site investigation fieldwork was conducted from August to December 1990, using about 150 boreholes and many trial pits. Precast concrete, spheroidal graphite iron, and sprayed concrete (shotcrete) tunnel linings were used. For each type of lining, eleven load cases had to be addressed by calculation or full-scale testing. At the project's start, London Underground Limited (LUL) decided that the works should be fully designed, with contractors tendering against drawings and bills of quantities. Several design consultants were chosen for the different sections of the work, and the construction was divided into two parts according to geology. To the west of London Bridge, the running tunnels and stations were designed as conventional bolted linings. To the east, closed-face shields and thick reinforced concrete tunnel rings had to be used, because of the difficult ground conditions.

• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • DAVIES, H R
• Conference:
  • PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS: CIVIL ENGINEERING. SPECIAL ISSUE 2. JUBILEE LINE EXTENSION
• Publication Date: 1999-11

Language

• English

Media Info

• Features: References;
• Pagination: p. 26-35
• Serial:
  • Volume: 132

Subject/Index Terms

• TRT Terms: Construction; Contractors; Contracts; Design; Iron; Precast concrete; Shotcrete; Soils; Subways; Tenders; Tests; Tunnel lining; Tunnels; Urban areas
• Uncontrolled Terms: Earth pressure balance machine; Site investigation
• Geographic Terms: United Kingdom
• ITRD Terms: 137: Bid; 3655: Construction; 146: Contract; 136: Contractor; 9011: Design (overall design); 3381: Earth pressure balance machine; 7159: Iron; 4792: Precast concrete; 4730: Shotcrete; 5722: Site investigation; 4156: Soil; 137: Tender; 6255: Test; 3374: Tunnel; 3385: Tunnel lining; 1191: Underground railway; 8119: United Kingdom; 313: Urban area
• Subject Areas: Administration and Management; Bridges and other structures; Construction; Design; Geotechnology; Marine Transportation;

Filing Info

• Accession Number: 00782886
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Feb 7 2000 12:00AM