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oai:kumadai.repo.nii.ac.jp:00023974 2023-08-29T05:44:47Z 426:428

鳥形山地域の広域的応力状態の推定 Estimation of Global Stress State in Mt.Torigata Region トリガタ チイキ ノ コウイキテキ オウリョク ジョウタイ ノ スイテイ Kaneko, Katsuhiko 中村, 直昭 ナカムラ, ナオアキ Nakamura, Naoaki 中村 ナカムラ Nakamura 直昭 ナオアキ Naoaki Obara, Yuzo 尾原, 祐三 オバラ, ユウゾウ Obara 尾原 オバラ Yuzo 祐三 ユウゾウ Ito, Kousuke Yoneda, Tetsuro Kato, Masaji 金子, 勝比古 中村, 直昭 ナカムラ, ナオアキ Nakamura, Naoaki 中村 ナカムラ Nakamura 直昭 ナオアキ Naoaki Obara, Yuzo 尾原, 祐三 オバラ, ユウゾウ Obara 尾原 オバラ Yuzo 祐三 ユウゾウ 伊藤, 耕介 米田, 哲朗 加藤, 昌治 © 2000 The Mining and Materials Processing Institute of Japan 560 広域応力 応力測定 3次元解析 露天採掘鉱山 石灰石 Global Stress Stress Measurement 3-dim.Analysis Open Cut Mine Limestone application/pdf 論文(Article) A scheme to estimate the global stress state from the local stress state evaluated by the field stress measurement is proposed. In the scheme it is assumed that the global stress is expressed by the superposition of the stress induced by the gravity and that by the horizontal movement of the upper crust. The local stress state in the rock mass under the pit of Torigata-yama open cut mine, located in Shikoku Island, Japan, was measured by the Conical-Ended Borehole Technique. The local stress distribution in Mt. Torigata region was evaluated by the 3-dim. FE-analysis and the global strain and stress states were estimated by the proposed scheme. From the comparison between the local stress states measured and calculated, it is made clear that , in Mt. Torigata region, the stress state induced by the horizontal movement of the upper crust is nearly uni-axial compression and the direction of the maximum compression is ranging from N24E to N27E Furthermore, it is pointed out that the distribution of horizontal stresses are strongly affected by the Poisson's ratio of rock mass and that the high horizontal stress is acting at the floor of excavation of the mine. http://www.jstage.jst.go.jp/article/shigentosozai/116/7/116_572/_article/-char/ja/ 社団法人 資源・素材学会 2000-07-25 jpn journal article VoR http://hdl.handle.net/2298/16250 https://kumadai.repo.nii.ac.jp/records/23974 10.2473/shigentosozai.116.572 18806244 AN10062646 資源と素材 116 7 572 576 https://kumadai.repo.nii.ac.jp/record/23974/files/mmij_116_7.pdf application/pdf 647.1 kB 2020-03-02