Development of a geotechnical reliability analysis by a simplified procedure and optimization of soil investigations

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360190
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Geotechnical engineering
• Research Institution: Gifu University
• Principal Investigator: HONJO Yusuke 岐阜大学, 工学部, 教授 (10251852)
• Co-Investigator(Renkei-kenkyūsha): OTAKE Yu 新潟大学, 自然科学系, 准教授 (90598822)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 信頼性設計 / 地盤構造物 / 統計解析 / 設計基準 / リスク評価 / 基礎構造物 / 不確実性

Outline of Final Research Achievements

The reliability analyses (RA) have been popularized through development of design codes throughout the world in the past several decades. However, issues related to the geotechnical reliability analyses have been identified in the same period because RA had been developed mainly in the structural engineering.
This study is solving these issues, namely by developing methods (1) to determine the characteristic values of soil parameters based on the soil investigation at a site by statistically sound foundation, (2) to evaluate the impact of soil spatial variability on performances of a geotechnical structure, and (3) to propose a method to combine complex geotechnical calculation tools and RA tools etc. Finally, these parts are systematically synthesized to make a geotechnical reliability analysis by a simplified procedure (GRASP).

Free Research Field

地盤工学