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※ 半角英数字
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結晶質岩を対象とした長期岩盤挙動評価のための現象論的研究

Phenomenological Study on Crystalline Rock Aiming at Evaluation of Long-Term Behaviour of Rock Mass

大久保 誠介*

Okubo, Seisuke*

本研究は1994年度$$sim$$2003年度に実施した研究を基礎としている.今年度も,田下凝灰岩のクリープ試験を引き続き行った.試験期間は7年を越え,従来の報告がほとんどない長期間のデータを採取中といえる.この結果を第2章で述べる.第3章では,中間温度領域におけるクリープ試験に関する検討結果について述べた.第4章では,比較的低い応力下でのクリープ試験結果について述べた.第5章では,時間依存性挙動のメカニズムについて検討したが,その際,試験結果のばらつきを情報の一つと考えた.第6章では,これまでの研究結果の総括と新研究結果について述べた.最後の第7章は結言である.

This study was based on the outcomes of the research conducted between the fiscal year of 1994 and 2003.In this year,creep test of Tage tuff was continuously conducted and the total testing time exceeded 7 years.The data is considered to be very scarce and valuable(chapter 2).Results of creep test at mid-range temperature were described(chapter 3).Creep test under relatively low stress was also conducted and the results were described(chapter 4).Mechanism of time-dependent behaviour of rock was discussed considering scatter of data as valuable information(chapter 5).Main results of the 10-years investigation were overviewed,and new research project was proposed(chapter 6).Chapter 7 is a conclusion.

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