Site Soil Investigations for Road Rehabilitation

Abstract:

The soil investigation performed on site identifies the physical and mechanical properties of the soil under the present road structure as well as the nature and thickness of the road structure to rehabilitate it when the road surface condition becomes poor or defective due to ageing, weathering and road traffic action. The rehabilitation processes re-assess the soil parameters to restore the pavement surface to the required level of service based on the recommendations of the field stratification as well as of the geotechnical characteristics of the studied emplacement. The paper presents the soil investigations on site along DN29 Suceava-Botoşani-Săveni-Manoleasa, Km 18+075 section of national road in Romania to get the information on subsurface conditions. The national road DN29 Suceava-Botoşani-Săveni-Manoleasa is covering the north-eastern part of Romania, in Moldavia region. Since its asphalt works in the '70s and '80s, nothing but partial sections of asphalt works has been carried out having never undergone major repairs. Due to external factors such as rain, snow, and traffic, the minor works that had been made make it usable for a short time, the results of soil investigation clearly attesting the rehabilitation priority. Some geotechnical characteristics of the national road DN29 Suceava-Botoşani-Săveni-Manoleasa, Km 18+075 section in Romania appear in comparison with those identified on site on the road DN29A Suceava-Dorohoi-Darabani, Km 50+075, in Romania, under a road structure that needed rehabilitation works as well.

• Periodical: Advanced Engineering Forum (Volume 21)
• Pages: 372-379
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.21.372
• Online since: March 2017
• Authors: Vasile Boboc, Ancuţa Rotaru*, Andrei Boboc, Gupinath Bhandari
• Keywords: Field Stratification, Mechanical Properties of Soils, Physical Properties of Soils, Road Rehabilitation, Road Structure, Soil Investigation

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