Earthquake damage mechanism of large-diameter pipeline

2014 Fiscal Year Final Research Report

• Project/Area Number: 24760363
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Kobe University
• Principal Investigator: KUWATA Yasuko 神戸大学, 工学(系)研究科(研究院), 准教授 (50379335)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 管路 / 水管橋 / 地震 / 津波 / 被害

Outline of Final Research Achievements

Large-diameter pipelines had damage during the 2011 off the Pacific coast of Tohoku earthquake in March 2011 and its aftershocks. Water outage was caused in wide area for a long term. This study focuses on (1) damage to flexible joint of the water-pipe bridge due to strong ground motion and (2) damage to water-pipe bridge due to tsunami wave among the damage cases for the large-diameter pipeline. These studies on damage mechanism of large-diameter pipeline were conducted by field investigation of microtremor observation to the bridge and subsurface ground and by numerical analysis.

Free Research Field

構造工学・地震工学・維持管理工学