INFLUENCE OF WEATHER CONDITIONS ON THE CONDUCT OF EARTHWORKS

INFLUENCE DES CONDITIONS METEOROLOGIQUES SUR LA CONDUITE DES TRAVAUX DE TERRASSEMENT

DIFFICULTIES ENCOUNTERED IN EARTHWORKS FOLLOWING BAD WEATHER CONDITIONS LEAD TO AN INCREASE IN CONSTRUCTION DELAY AND CONSTRUCTION COSTS. AT PRESENT, IT IS DIFFICULT TO SEPARATE THE INFLUENCE OF WEATHER CONDITIONS FROM OTHER INFLUENCES WHEN EARTHWORKS HAVE TO STOP. THE AIM OF THE RESEARCH IS TO INCREASE PRESENT KNOWLEDGE ON THE RELATION BETWEEN WEATHER PHENOMENA AND THE EVOLUTION IN THE MOISTURE CONTENT OF THE SOIL SURFACE LAYER, AND BETWEEN THE MOISTURE CONTENT AND LOSS OF TRAFFICABILITY (THEREFORE STOPPAGES ON SITE). AFTER CARRYING OUT INVESTIGATIONS INTO THE EVOLUTION IN MOISTURE CONTENT IN THE BLOIS DISTRICT, THE CER EXAMINED IN 1977-1978 THE INFLUENCE OF THE SURFACE CHARACTERISTICS OF SILT ON THE QUANTITY OF SEEPAGE WATER. IN 1979, THE CER WILL CONTINUE THE STUDY OF OTHER TYPES OF SOIL AND WILL SUMMARIZE RESULTS OBTAINED. THE NICE LABORATORY WILL ATTEMPT TO RELATE STOPPAGES ON A LARGE EARTHWORKS SITE AND CORRESPONDING WEATHER DATA.