 
          3402
        
        
          Proceedings of the 18
        
        
          th
        
        
          International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
        
        
          5 REFERENCES
        
        
          Grigorjev V.A., Emtsev B.E et al. 1982.
        
        
          
            Heat and Mass Transfer. Heat-
          
        
        
          
            engineering experiment
          
        
        
          :
        
        
          
            Manual / edited by V.A. Grigorjev and
          
        
        
          
            V.M. Zorin.
          
        
        
          Energoizdat, Moscow, 512 p.
        
        
          Katzenbach R. et al. 2007. Hochleistungsenergiepfähle zur Nutzung der
        
        
          Geothermie im Hochhausbau.
        
        
          
            Proceedings of the 6th Austrian
          
        
        
          
            Geotechical Conference
          
        
        
          , Vienna, 18–19 January 2007, pp. 511-522.
        
        
          Kaloshina S.V., Ponomaryov A.B. 2006. About engineering-geological
        
        
          conditions of construction in the city of Perm.
        
        
          
            Proceed. of the
          
        
        
          
            International scientific and technical conference devoted to the
          
        
        
          
            50th anniversary of Bashkir Scientific Research Institute for
          
        
        
          
            Construction
          
        
        
          , Ufa, Vol. 2, pp. 119-124.
        
        
          Figure 4.
        
        
          Distribution of temperature fields in the soil mass at
        
        
          work energy pile.
        
        
          4 CONCLUSIONS
        
        
          On the bases of the analysis of regression equations derived
        
        
          and nomograms plotted we can draw the following conclusions:
        
        
          1. Heat flow density (
        
        
          
            q
          
        
        
          ) through the contact surface of an
        
        
          energy foundation will depend on:
        
        
          - for a single pile – on its radius (r) and foundation depth (d).
        
        
          In this case, the heat flow density decreases with the increase of
        
        
          the radius and the length of the pile;
        
        
          - for a sunken slab foundation – on its width (b) and
        
        
          foundation depth (d). In this case, the heat flow density
        
        
          decreases with the increase of the width and the foundation
        
        
          depth;
        
        
          - for a slurry wall – on the foundation depth (d). In this case,
        
        
          the heat flow density decreases with the increase of the
        
        
          foundation depth.
        
        
          2. The amount of heat flow density is higher for the
        
        
          engineering-geological conditions of the second type than for
        
        
          those of the first type, namely
        
        
          
        
        
          10 % higher for a single pile
        
        
          and
        
        
          
        
        
          6 % higher both for a slab foundation and a slurry wall.