Observation of in and out flow from rock specimens and estimation ofthe permeability under the triaxial compression

三轴压缩下岩石样本进出流观测及渗透率估算

• 批准号: 20360404
• 负责人: OKUBO Seisuke
• 金额: $ 7.99万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360404/
• 关键词: 岩石; 可視化; 時間依存性; 三軸圧縮試験; 透水係数; 構成方程式; シミュレーション; 強度回復; 三軸ベッセル; 粘弾性; 緩み領域

Variation of the coefficient of permeability with the strength recovery phenomenon was researched experimentally. When investigating the long-term behavior of the underground structures, strength recovery and decrease of the coefficient of permeability are very important. The coefficients of permeability for the original rock specimen, fractured specimen in the progress of strength recovery, and the compacted specimen after the compaction test were investigated experimentally. The coefficient of permeability became small moderately with the increase of the axial load applied in the compaction test. Experimental results from this study showed that the decrease of the coefficient of permeability progressed with strength recovery, which is the preferable trend for the repositories in rock mass.

通过实验研究了渗透系数随强度恢复现象的变化。在研究地下结构的长期行为时，强度恢复和渗透系数的降低非常重要。对原岩试件、强度恢复过程中的断裂试件以及压实试验后的压实试件的渗透系数进行了试验研究。随着压实试验中施加的轴向载荷的增加，渗透系数适度变小。本研究的实验结果表明，随着强度恢复，渗透系数逐渐减小，这对于岩体储集层来说是较好的趋势。

项目成果

Rheological Behaviour and Model for Porous Rocks Under Air-Dried and Water-Saturated Conditions

• DOI: 10.2174/1874149500802010088
• 发表时间: 2008-06
• 期刊: The Open Civil Engineering Journal
• 作者: S. Okubo;K. Fukui;Xiujun Gao

Applicability of the variable-compliance-type constitutive equation to rock breakage by excavation machinery.

变柔顺型本构方程在挖掘机械岩石破碎中的适用性。

• 发表时间: 2011
• 期刊: Tunnelling and Underground Space Technology Vol.26, No.1
• 作者: 羽柴公博;福井勝則
• 通讯作者: 福井勝則

AN OPTICAL TESTING APPARATUS FOR ROCK IN TRIAXIAL COMPRESSION AND ITS APPLICATION

岩石三轴压缩光学测试仪及其应用

• 发表时间: 2009
• 作者: 羽柴公博;大久保誠介;福井勝則;Lei M
• 通讯作者: Lei M

Long-term creep of water-saturated tuff under uniaxial compression

• DOI: 10.1016/j.ijrmms.2010.03.012
• 发表时间: 2010-07
• 期刊: International Journal of Rock Mechanics and Mining Sciences
• 影响因子: 7.2
• 作者: S. Okubo;K. Fukui;K. Hashiba

破砕した岩石の強度回復特性と載荷速度依存性

碎石强度恢复特性及加载速率依赖性

• 发表时间: 2009
• 期刊: 資源・素材 Vol.125, No.9
• 作者: 羽柴公博;雷鳴;大久保誠介;福井勝則
• 通讯作者: 福井勝則