Studies on the creation of advanced pipeline seismic assessment analysis method in aged infrastructure society

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K12489
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Nagoya University
• Principal Investigator: KITANO Tetsuji 名古屋大学, 減災連携研究センター, 寄附研究部門教授 (90644849)
• Research Collaborator: OGURA Hitoshi ; SAKANOUE Takashi ; ITO Fumiki ; YASUI Motoyoshi
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 埋設管 / パイプライン / 地盤拘束力 / 土槽実験 / 数値解析 / 触覚センサー / 管周方向土圧分布 / SPH粒子法

Outline of Final Research Achievements

In the existing buried pipe seismic design guidelines, the restraint force acting on the pipe is set to the same value. However, it is considered that the restraint force acting on the pipe shows different values at each position. Therefore, in this study, the authors measured the earth pressure acting on the surface of the buried pipe by performing the buried pipe horizontal traction experiment and the numerical analysis of this experiment was carried out in order to confirm the results of this experiment. As a result, it is clarified that both the horizontal component and the vertical component of the earth pressure value acting on the pipe surface are larger in the lower half than the upper half of the pipe.

Free Research Field

ライフライン地震工学、パイプライン工学、耐震工学