DIAMOND-SAW SURGERY FOR UNDERMINED OVERBRIDGE

The author describes the use of hydraulic-powered, wall mounted diamond saws to cut through an M1 overbridge in Derbyshire, threatened by subsidence from mineworkings below. A detailed description is given of the operation which involves increasing the clearance between the bridge's abutments and columns at either end from 75 mm to 230 mm by taking a vertical slice out of the parapets, duct covers, deckslab and abutments. The advantages of the method chosen are outlined and include the resulting clean edge and relatively low cost. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03077683
• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Merchant, M
• Publication Date: 1977-5-12

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 18
• Serial:
  • NEW CIVIL ENGINEER
  • Issue Number: 242
  • Publisher: EMAP CONSTRUCT LIMITED
  • ISSN: 0307-7683

Subject/Index Terms

• TRT Terms: Abutments; Bridges; Columns; Costs; Diamonds; Ducts; Freeways; Ground settlement; Hydraulic equipment; Mines; Parapets; Production methods; Sawing; Traffic patrol; Traffic signs
• Geographic Terms: United Kingdom
• Old TRIS Terms: Hydraulic systems; Traffic sign production techniques; Undermining
• ITRD Terms: 3424: Abutment; 3455: Bridge; 224: Cost; 5117: Mine; 2752: Motorway; 3494: Parapet; 5128: Sawing; 5792: Settlement; 8119: United Kingdom
• Subject Areas: Bridges and other structures; Construction; Finance; Highways; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00165654
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Mar 14 1978 12:00AM