Mechanical behavior of a rock fracture and mechanisms for the scale effect

岩石破裂的力学行为和尺度效应机制

• 批准号: 19360402
• 负责人: MATSUKI Koji
• 金额: $ 12.4万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19360402/
• 关键词: 廃棄物地下保存・処分; 地下き裂; き裂の力学的挙動; き裂透水性; 寸法効果; 地下岩盤き裂; 岩石; き裂; 力学的挙動; 垂直応力; せん断応力; 一面せん断試験

In this study, we experimentally and theoretically investigated mechanisms for scale effect on the mechanical behaviors of a rock fracture, and showed that the scale effect on the closure and shear behavior of a fracture under normal and shear stresses primarily depends on that on the standard deviation (SD) of the aperture. Furthermore, we proposed a method for estimating the hydraulic conductivity of a fracture with an arbitrary direction in the axes of principal stresses, and illustrated the variation in the hydraulic transmissivity with the direction of the fracture.

在这项研究中，我们在实验和理论上研究了对岩石断裂机械行为影响的规模影响的机制，并表明尺度对正常裂缝的闭合和剪切行为的影响主要取决于标准偏差，这主要取决于标准偏差孔的（SD）。此外，我们提出了一种估计骨折在主应力轴上任意方向的断裂的液压电导率，并说明了与断裂方向的液压透射率变化。

项目成果

Effect of shear displacement on the hydraulic conductivity of a fracture

• DOI: 10.1016/j.ijrmms.2009.10.002
• 发表时间: 2010-04
• 期刊: International Journal of Rock Mechanics and Mining Sciences
• 影响因子: 7.2
• 作者: K. Matsuki;Y. Kimura;K. Sakaguchi;A. Kizaki;A. Giwelli

Estimation of closure of a fracture under normal stress based on aperture data

• DOI: 10.1016/j.ijrmms.2007.04.009
• 发表时间: 2008-02
• 期刊: International Journal of Rock Mechanics and Mining Sciences
• 影响因子: 7.2
• 作者: K. Matsuki;E. Wang;A. Giwelli;K. Sakaguchi

Experimental study on anisotropic and heterogeneous water flow in a sheared fracture

剪切裂缝中各向异性非均质水流实验研究

• 发表时间: 2009
• 作者: K. Sakaguchi;M. Goto;T. Takanishi;K. Matsuki;A. Kizaki
• 通讯作者: A. Kizaki

Experimental study of the effect of fracture size on closure behavior of a tensile fracture under normal stress

• DOI: 10.1016/j.ijrmms.2008.11.008
• 发表时间: 2009-04
• 期刊: International Journal of Rock Mechanics and Mining Sciences
• 影响因子: 7.2
• 作者: A. Giwelli;K. Sakaguchi;K. Matsuki

Three-Dimensional Finite Element Analysis of Stress and Deformation in a Fracture in the Direct Shear Test

直剪试验中裂缝应力和变形的三维有限元分析

• 发表时间: 2008
• 作者: A. A. Giwelli;K. Sakaguchi;K. Matsuki
• 通讯作者: K. Matsuki