ROCK FALLS ON ROADS. DEVELOPMENT OF STUDY METHODS

EBOULEMENTS ROCHEUX SUR LES ROUTES - MISE AU POINT DES METHODES D'ETUDES

THE AIM OF THE RESEARCH IS TO DEVELOP PREVENTIVE AND/OR PROTECTIVE METHODS TO HELP PROJECT ENGINEERS AND ROAD OPERATORS TO ENSURE GREATER SAFETY FOR ROAD USERS AGAINST ROCK FALL RISKS. IN 1979 IT IS PROPOSED TO CONTINUE THE INVESTIGATIONS STARTED WITHIN THE WORKING GROUP FOR CLIFFS, ESPECIALLY: MAPPING OF RISKS SO AS TO PINPOINT THEIR IDENTIFICATION AND EVALUATION; PREVENTIVE DEVICES: ANCHORAGE AND PROTECTIVE NETS FOR SLOWING DOWN FALLS; METHODOLOGY OF SPECIFIC STUDIES USED ON SITES WHERE ROCK FALLS OCCURRED; VERY HIGH ROCK SLOPES FOR NEW ROAD PROJECTS OR WIDENING OF ROADS: PROBLEMS RELATED TO ROCK EXTRACTION AND SLOPE GEOMETRY.