Multiscale stability analysis of a tunnel in swelling rockmass applying secant stiffness

Xiaodong Liu, Junji Kato, Takashi Kyoya

研究成果: Conference contribution

抄録

Damage of tunnels often occurs in Japan caused by swelling smectite rockmass. For an effective countermeasure against the damage, mechanical interaction between tunnel lining and swelling rock mass are analyzed by a two-scale analysis based on a homogenization theory in this study. In the microscopic scale, swelling of smectite minerals and damage process of surrounding intact rocks induced by the swelling of smectite minerals are analyzed by a 3D continuous damage model. This microscopic analysis provides the averaged volumetric change and the damaged macroscopic stiffness of the representative volumetric element (RVE) of rock mass. In the macroscopic scale, therefore, stress distribution within/around the tunnel lining can be reasonably analyzed by using the averaged secant stiffness and its volumetric strain of the RVE. The mechanical interaction between the tunnel lining and swelling rock mass is discussed and examined as some case studies are carried out.

本文言語English
ホスト出版物のタイトル4th ISRM Young Scholars Symposium on Rock Mechanics, YSS 2017
出版社International Society for Rock Mechanics
ページ284-287
ページ数4
ISBN(電子版)9791156103158
出版ステータスPublished - 2017 1 1
イベント4th ISRM Young Scholars Symposium on Rock Mechanics, YSS 2017 - Jeju, Korea, Republic of
継続期間: 2017 5 102017 5 13

出版物シリーズ

名前4th ISRM Young Scholars Symposium on Rock Mechanics, YSS 2017
2017-May

Other

Other4th ISRM Young Scholars Symposium on Rock Mechanics, YSS 2017
CountryKorea, Republic of
CityJeju
Period17/5/1017/5/13

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

フィンガープリント 「Multiscale stability analysis of a tunnel in swelling rockmass applying secant stiffness」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル