Geometric and Mechanical Properties of Discontinuities of Rock and Its Characteristics of Flow

岩石结构面的几何力学性质及其流动特性

• 批准号: 63550464
• 负责人: ESAKI Tetsuro
• 金额: $ 1.54万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63550464/
• 关键词: Rock Mechanics; Shear Test; Permeability; Nuclear Disposal; Laboratory Test; Underground Utilization; Discontinuity; 岩の透水試験; 地下の透水; せん断特性; 透水モデル

The subject of underground utilizations that is representative of radioactive waste disposal has enhanced the importance of investigating water flow characteristics of fractured rock masses.From this point of view, this research describes the characteristics obtained by using a new testing apparatus which has developed to enable shear-flow coupling test. Each granite specimen, 80・100・120mm, used for the tests includes an artificially made fracture parallel to the lift plane of rock. It is found from the coupling test that the permeability of the specimens decreases with increasing normal stress and increases so much with shear displacement. Such shear-flow characteristics agree with some predicted ones, taking account of the theoretical and physical apertures, and roughness of a fractured surface.

以放射性废物处理为代表的地下利用主题增强了研究裂隙岩体水流特性的重要性。从这个角度来看，本研究描述了通过使用一种新的测试装置获得的特性，该装置已开发用于实现剪切力-流动耦合测试。用于测试的每个花岗岩样本，80·100·120mm，都包含平行于岩石升力平面的人工裂缝。从耦合测试中发现，样本的渗透性随着法向的增加而降低。考虑到理论和物理孔径以及断裂表面的粗糙度，这种剪切流特性与一些预测的一致。

项目成果

江崎哲郎,木村強,北条裕之: "岩盤の不連続面のShear-Flow Coupling" 第22回岩盤力学シンポジウム講演論文集. 22. 346-350 (1990)

Tetsuro Ezaki、Tsuyoshi Kimura、Hiroyuki Hojo：“岩石不连续表面上的剪切流耦合”第 22 届岩石力学研讨会论文集 22. 346-350 (1990)。

江崎哲郎: "岩盤の不連続面のShear-Flow Coupling" 第22回岩盤力学に関するシンポジウム論文集. 22. 346-350 (1990)

Tetsuro Ezaki：“岩石中不连续表面的剪切流耦合”第 22 届岩石力学研讨会论文集。22. 346-350 (1990)

Esaki Tetsuro, KIMURA Tsuyoshi and Hojo Hiroyuki: "Shear-Flow Coupling on Jointed Rock Masses." Proceedings of the 22nd Symposium on Rock Mechanics. Vol. 22. 346-350 (1990)

Esaki Tetsuro、KIMURA Tsuyoshi 和 Hojo Hiroyuki：“节理岩体上的剪切流耦合”。