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Construction of Data-Base for High-capacity Micro-pile method

IWM ’04 Tokyo. Construction of Data-Base for High-capacity Micro-pile method. Yoshinori Otani,P.E. ｊ p Hirose & Co., Ltd. Prof. Masaru Hoshiya Musashi Institute of Technology. Aug.27th 2004. Contents. Purpose of the Data-Base Background Frame of the Data-Base Challenges Summary.

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Construction of Data-Base for High-capacity Micro-pile method

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  1. IWM ’04 Tokyo Construction of Data-Base for High-capacity Micro-pile method Yoshinori Otani,P.E.ｊp Hirose & Co., Ltd. Prof. Masaru Hoshiya Musashi Institute of Technology Aug.27th 2004

  2. Contents • Purpose of the Data-Base Background • Frame of the Data-Base • Challenges • Summary

  3. Purpose of the Data-Base Design Optimization Gathering,Sharing and Communication for Technical Information of HMP • Bearing Capacity Characteristics • Seismic Performance • Deformation Performance

  4. Background(1)Difference of Design Codes Experiences of HMP in Japan Fig.1 Comparison of Design Bond Stress between Highway Bridge and Rail-road Bridge

  5. Background(2)Seismic Performance of MP Fig.1 Damage under the Kobe-Earthquake Comparison of between reinforced wall by MP and non-reinforced wall

  6. Frame of the Data-Base Fig. Frame of the Data-Base System

  7. 1)Basic Data • Engineering　Evaluations • Market　Analyses　 • Reliability Study • Develope new technology 　　　　　　　　　　　　　Basic Data Formation of structures and piles Design,Construction data Ground condition of the Existing Works

  8. 2)Bearing Capacity Characteristics • Load factor Design Method on Performance Design　 Design safety index, Partial safety factor, Coefficient of variation 　　 Code Calibrations Limit state, Performance function LoadingTest Result (load-displacement curve) on HMP Loading Test in-situ of HMP

  9. 3)Seismic Performance Research of the structures received damage by Earthquake Measurement by Acceleration　Seismographs

  10. 4)Deformation Performance Uncertainties deformation performance deformation analysis Research deformation conditions associated with changes in loading history over long periods Photo. Deformation on the head of HMP Takenaka　Corporation Fig. Displacement Analysis of Pile

  11. Challenges • Developing tools for collecting data • Managing proprietary rights in data attributable to organizations • Integrating data formats

  12. Summary It is urgently necessary to construct a Limit State Design Method incorporating reliability techniques in the process of transition towards Performance Provision Design. Data to be collected for optimizing designs are thought not only to serve as simple mathematical statistic works but also to be used as materials for geo-technical verification. It is hoped that in the future these databases will be available for differing ground characteristics and regions and contribute towards internationally integrated design standards.

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