 
          2872
        
        
          Proceedings of the 18
        
        
          th
        
        
          International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
        
        
          The optimization process can also be applied to pile load
        
        
          test data or any other method that generates the necessary
        
        
          values. The example here fits only horizontal deflections at the
        
        
          pile top. A better, slightly more complex approach is to fit both
        
        
          deflection and pile head rotation data. Since this involves more
        
        
          statistical degrees of freedom (double the number just
        
        
          demonstrated) more springs would be necessary. Data that is
        
        
          being compared can be assigned weighting (importance) values
        
        
          if some data is more reliable or vital than others.
        
        
          7 ACKNOWLEDGMENTS
        
        
          The authors acknowledge the financial support of the Széchenyi
        
        
          István University within the framework of TáMOP 4.2.2/B-
        
        
          10/1-2010-0010 application.
        
        
          8 REFERENCES
        
        
          AxisVm, 2010.
        
        
          
            Finite Element Analysis & Design Program
          
        
        
          , users
        
        
          manual, InterCad Ltd, Budapest.
        
        
          Bak E., Koch E., Ray R., Sharle P., Szepesházi R. 2010. Parametric
        
        
          study of combined pile-raft foundation.
        
        
          
            Proc. of the XIVth Danube-
          
        
        
          
            European Conference on Geotechnical Engineering
          
        
        
          , Bratislava,
        
        
          Slovakia, p. 13.
        
        
          Hetényi M. 1964. Beams on elastic foundation
        
        
          
            , Theory with
          
        
        
          
            applications in the fields of civil and mechanical engineering
          
        
        
          ,
        
        
          University of Michigan Press, Ann Arbor, Michigan.
        
        
          MIDAS 2009.
        
        
          
            MIDAS GTS users manual
          
        
        
          , Information Technology Co.,
        
        
          Ltd. Delft, Netherlands.
        
        
          Reese L.C., Wang S.T 1997.
        
        
          
            LPILE Plus 3.0 Technical manual of
          
        
        
          
            documentation of computer program
          
        
        
          , Ensoft, Inc., Austin, Texas,.
        
        
          Szép J., Murinkó G., Szepesházi R. 2009. Modelling bridge
        
        
          substructures, (in Hungarian)
        
        
          
            Geotechnika  conference
          
        
        
          , Ráckeve,
        
        
          Hungary,  p. 22.
        
        
          Szép J. 2011. FEM - modeling of abutment,
        
        
          
            10th Slovak Geotechnical
          
        
        
          
            Conference - Geotechnical Problems of Engineering Constructions
          
        
        
          ,
        
        
          Bratislava, Slovakia, 30-31 May, 207-218.
        
        
          Strom R. W., Ebeling R. M. 2001. State of the practice in the design of
        
        
          tall, stiff, and flexible tieback retaining walls,
        
        
          
            Technical Report
          
        
        
          
            ERDC/ITL TR-01-1,
          
        
        
          US Army Corps of Engineers 1-225.
        
        
          Figure 4. Finite element data with optimized spring response fit.
        
        
          6  CONCLUSION AND FURTHER STUDY
        
        
          Harmonizing structural and geotechnical design methods is a
        
        
          worthwhile challenge. Implementing the recently adopted
        
        
          design methods of Eurocode opens the possibility to teach new
        
        
          professionals a more integrated approach to design. However, in
        
        
          order to accomplish this, design methods and software must be
        
        
          better integrated and understood from both the structural and
        
        
          geotechnical perspectives. In this paper several methods were
        
        
          presented that Hungarian designers use for geotechnical and
        
        
          structural projects. Due to the more rigorous demands of
        
        
          modern designs, the substructure and superstructure
        
        
          components must work together seamlessly.
        
        
          As part of ongoing research at Széchenyi University, the
        
        
          authors have presented several methods for analyzing and
        
        
          designing piles for lateral loads. Ideally the methods would be
        
        
          totally integrated; however this is not always possible due to the
        
        
          nature of design contracts, project timing, and available design
        
        
          software. Ideas and methods to overcome these limitations have
        
        
          been given and it is hoped they will engender further discussion
        
        
          by the engineering community.
        
        
          Further research will focus on more complex structural and
        
        
          geotechnical systems where the entire construction process is
        
        
          modeled. By understanding the nuances of excavation,
        
        
          earthwork, falsework, concrete placement and finish schedules,
        
        
          further design efficiencies and enhancements can be found.