 
          1629
        
        
          Technical Committee 203 /
        
        
          
            Comité technique 203
          
        
        
          4 REFERENCES
        
        
          Aleksandrovych V.A. 2012. Concerning the Vibrocreep Issue.
        
        
          
            Proc. of
          
        
        
          
            the 22
          
        
        
          
            nd
          
        
        
          
            European Yong Geotechnical Engineers Conference
          
        
        
          , 173-
        
        
          178.
        
        
          Khain V.Ya. 1977 Theoretical Analysis of Sustained Foundation
        
        
          Settlements under Static and Dynamic Loads
        
        
          
            , Dynamics of
          
        
        
          
            Subgrades and Structures
          
        
        
          , 206-209.
        
        
          Savinov O.A. 1979.
        
        
          
            Modern Designs of Machinery Foundations and
          
        
        
          
            Their Calculation
          
        
        
          . Leningrad.
        
        
          Ilyichev at al. 1986.
        
        
          
            Recommendations to Conducting Field Tests in
          
        
        
          
            Turbounits Foundations Subgrades Vibrostability
          
        
        
          . Moscow.
        
        
          Rabotnov Yu.N. 1977.
        
        
          
            Elements of Hereditary Solid Mechanics.
          
        
        
          Moscow.
        
        
          Aleksandrovych V.A. and Taranov V.G. 2012. Vibrostability of Sandy
        
        
          Soils in the Range of 5-50Hz Forced Vibration Frequency.
        
        
          
            Collective Volume of Scientific Papers of PNTU
          
        
        
          4(34), 24-29.
        
        
          Figure 4. The curve of settlement progress with time a
        
        
          z
        
        
          = 10µm.
        
        
          Luchkovskiy I.Ya. Structure-Base Interaction. Kh.
        
        
          
            Publishing House of
          
        
        
          
            KhSPU
          
        
        
          . 2000.– 263p.
        
        
          3 CONCLUSIONS
        
        
          Manifestation of rheological properties of concrete and soil
        
        
          should be taken into account for the three moments of the
        
        
          loading time: t=0; t→∞ and t= tcr. The results of the conducted
        
        
          research show that the system gradually «adapts» to the
        
        
          sustained load, which leads to increase in force in the first
        
        
          loading period, and further – to their decrease (by 20-25%).
        
        
          Consequently, a reserve for the load increase will appear in
        
        
          structures under the sustained load.
        
        
          Rzhanitsyn А.R. Some Questions of Mechanics of Systems Deforming
        
        
          Over Time. М.-L.
        
        
          
            Stroyizdat
          
        
        
          .1949.–252p.
        
        
          Ulitskiy I.I. The Theory and Calculation of Ferroconcrete Bar Structures
        
        
          Considering Continuous Processes. –
        
        
          
            Budivelnyk Publishing
          
        
        
          
            House
          
        
        
          , Kyiv, 1967–347p.
        
        
          Known buildings and structures damage, as well as the
        
        
          machinery dysfunction has proved the importance of the issue
        
        
          under consideration. The research conducted has confirmed the
        
        
          possibility of applying the hereditary creep theory to determine
        
        
          the vibrocreep settlement value. The reliability R2=0.97-0.99 of
        
        
          data approximation with logarithmical function confirms the
        
        
          accuracy of the technique developed.