Development and dissemination of the performance based design and the reliability based design theory of geotechnical structures

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The study was carried out aiming at the three goals made in the proposal of the research. The first goal is to progress research under 6 topics : (1) development of effective MCS method, (2) a methodology for determining partial factors by MCS, (3) development of user friendly reliability analysis method for geotechnical design, (4) modeling of ground by random field theory, (5) development of the sampling theory in the random field, and (6) collection of data and knowledge in geotechnical reliability design, The results are presented in the form of journal and conference papers. More than 30 journal papers and 36 conference papers have been published. The second goal is to integrate the state of the art knowledge in the field by organizing an international symposium. IS Gifu was held on 11 and 12 of June, 2009 at the Nagara International Conference Center with 100 participants (of which 32 was from overseas). 4 lectures and 51 general presentations are made of which two third was made by participants from abroad. The symposium gave an excellent opportunity to summarize the current progress made at various parts of the world. The third goal is to draft a publication that summaries geotechnical reliability based design. The drafts have been accumulated especially in the later half period of the study as a text for intensive lectures at various universities, a ISSMGE technical committee report, and articles published in the seminar series in JGS journal etc. The final version of the draft is now under edition whose table of contents is given in this report.