UkrainianProfessional Education

Abstract

The purpose of the proposed article is to describe a practical example, experimental and theoretical analysis of strengthening weak soils with geogrids in the base based on field studies of a reinforced soil structure near an overpass. The authors present practical data from field studies of settlement of a reinforced soil structure reinforced with a stabilizing geogrid. The actual data of monitoring the settlement of the structure during two years of operation are presented. The calculated and actual data on the structure near the overpass at km 759+149 of the public road of national importance M-12 are analyzed. Sufficient previous experience in the design of ground structures with geosynthetic reinforcement with geogrids makes it possible to monitor facilities during operation, and a more detailed understanding of the mechanics of operation and calculation methods for such structures allows for the improvement and optimization of such structures at the design stage through monitoring work. The authors have proven that the use of a stabilizing mattress under a 9-meter-high reinforced concrete structure allowed for uniform settlement of the structure and to predict settlement processes during the commissioning of the structure. Clear field data on the settlement of the structure are provided, which have minimal discrepancies with the calculated ones. Such a monitoring approach allows optimizing design solutions, which may reduce the overconsumption of geogrids in reinforced soil structures, and optimizing design parameters, namely the reinforcement pitch and the length of the reinforcing layer, which affects the project cost and labor intensity of the work

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