Synergetic effect of constant stress and freeze-thaw action on damage development in rock specimen

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420879
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Earth system and resources engineering
• Research Institution: Hokkaido University
• Principal Investigator: KODAMA JUN-ICHI 北海道大学, 工学(系)研究科(研究院), 准教授 (70241411)
• Co-Investigator(Kenkyū-buntansha): KODAMA NARIAKI 函館工業高等専門学校, 准教授 (60435386) ; NAKAMURA DAI 北見工業大学, 工学部, 准教授 (90301978)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 岩石 / 凍結融解作用 / 一定応力 / ハイブリッド損傷 / 変形挙動

Outline of Final Research Achievements

Synergetic effect of constant stress and freeze-thaw action on damage development in a rock specimen was investigated by laboratory tests under 3-dimennsonal cooling conditions. It was found that damage development by both constant stress and freeze-thaw action was more than that by constant stress or freeze-thaw action based on analysis of deformation behavior. It was also found that applied constant stress controlled orientation of damage development.

Free Research Field

岩盤工学