RETAINING WALLS AND STABILITY OF THE SLOPES OF THE PARIS-ROME MOTORWAY (CROSSING THE JURA MOUNTAINS). PROCEEDINGS, SIXTH CONFERENCE, ROAD ENGINEERING ASSOCIATION OF ASIA AND AUSTRALASIA, 4-10 MARCH 1990, KUALA LUMPUR, VOLUMES 1 TO 5 AND POST CONFERENCE PROCEEDINGS

The A40 Motorway from Macon to Geneva crosses the Jura via the main Paris-Rome road. It follows the transverse valley of Nantua, which is typical in these mountains: narrow bottom, slopes often steep, topped by cliffs. The whole project is based on the following main principles: to fit the best way possible into the slopes by trying at each cross-section to minimize and counterbalance the volume of cut and fill so that the equilibrium of the slope is modified as little as possible; to reinforce the general stability of the slopes in the structure's zone of influence. Thus, the alignment and longitudinal profile correspond to a roadway which is sometimes offset and usually on two different levels. While the embankment walls are made of reinforced earth, the cuts are lined with anchored walls. In order to monitor the progress of the work and ensure the safety of the users of the road, a long-term auscultation system has been installed (using many different methods, in order to increase reliability): load of the anchors, inclinometer, extensometer, topography. The cliffs also present some risk of instability. Besides the active and passive safety structures, an automatic surveillance system is being installed in the most critical zones. It will allow detection from a central location of possible traffic movements. For the covering entry of the conference see IRRD 823206. (Author/TRRL)

• Corporate Authors:

  Road Engineering Association of Asia & Australasia

  Office of the Director-General of Public Works
  Kuala Lumpur,   Malaysia 
• Authors:
  • Guerpillon, Y
• Publication Date: 1990

Media Info

• Pagination: 20 p.
• Serial:
  • Volume: 3

Subject/Index Terms

• TRT Terms: Alignment; Anchorages; Conferences; Cross sections; Detection and identification; Detectors; Embankments; Geomorphology; Highway design; Layout; Mechanically stabilized earth; Monitoring; Mountains; Retaining walls; Slope stability; Soil mechanics; Surveillance; Time duration; Traffic flow
• Uncontrolled Terms: Long term; Longitudinal profile
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00620248
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, TRIS
• Created Date: Mar 31 1992 12:00AM