EFFECT OF SPATIAL HETEROGENEOUS DISTRIBUTION OF GEOMECHANICAL PROPERTIES ON STABILITY OF TUNNEL FACE
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- OKAZAKI Yasuyuki
- 松江工業高等専門学校 環境・建設工学科
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- HAYASHI Hisashi
- 山口大学大学院 創成科学研究科
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- FUKUMA Tomoya
- 松江工業高等専門学校 環境・建設工学科
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- MORIMOTO Shingo
- ドボクリエイト株式会社
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- OHYA Makoto
- 松江工業高等専門学校 環境・建設工学科
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- SHINJI Masato
- 山口大学大学院 創成科学研究科
Bibliographic Information
- Other Title
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- 空間的な地山物性の不均質分布が切羽の安定性に及ぼす影響
Abstract
<p> In the construction of underground opening by the mountain tunnel method, the stability of tunnel face cannot be ensured depending on rock mass conditions, and a collapse phenomenon may occur. For this reason, many studies have been carried out about the stability of tunnel face. However, most of previous studies have been performed without considering the spatial heterogeneity of geomechanical properties. In this study, in order to collect effects of spatial heterogeneity of geomechanical properties on the stability of tunnel face, basic stability analyses of tunnel face considering the spatial heterogeneity of geomechanical properties in soft rock mass were carried out based on the random field theory. It was clear that the effect on displacement and maximum shear strain on tunnel face was large depending on heterogeneous condition in rock mass, and it was necessary to properly evaluate the effect.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. F2 (Underground Space Research)
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Journal of Japan Society of Civil Engineers, Ser. F2 (Underground Space Research) 78 (1), 22-32, 2022
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390854882570973184
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- ISSN
- 21856583
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- KAKEN
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- Abstract License Flag
- Disallowed