Hausdorff Distance as a 3D Fracture Aperture Metric
Hausdorff Distance as a 3D Fracture Aperture Metric
复制标题
作为 3D 断裂孔径度量的 Hausdorff 距离
DOI：
10.1007/s00603-021-02367-5
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发表时间：
2021
影响因子：
6.2
通讯作者：
Konietzky
中科院分区：
文献类型：
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作者：
Finenko;Konietzky
我们建议Hausdorff距离作为粗糙壁三维岩石断裂的三维孔径度量。为了验证它的可扩展性，我们从一个三维扫描的结晶岩石样品中构建了一个裂缝模型。与常用的垂直孔径的比较揭示了显着的优势，在成像中可能存在的裂缝体积的孔径瓶颈。另一个优点源于Hausdorff距离的全向性质，而不是先前开发的定向真实孔径估计技术。此外，我们计算非剪切和剪切断裂模型的孔径分布，突出两个孔径度量之间的差异和相似之处。可以使用Grasselli提出的表面粗糙度估计方法绘制平行线，该方法也对由3D扫描点云构建的表面网格进行操作。Hausdorff距离表现最好的高度倾斜的区域，在那里的网格多边形的全倾角变得显着和垂直孔径不可避免地高估了真正的几何孔径的裂缝。
We propose Hausdorff distance as a 3D aperture metric for the rough-walled 3D rock fracture. To verify its plausibility, we construct a fracture model from a 3D scanned crystalline rock sample. Comparison with the commonly used vertical aperture reveals significant advantages in imaging of the possible aperture bottlenecks present in the fracture volume. Another advantage stems from the omnidirectional nature of the Hausdorff distance as opposed to the directional true aperture estimation techniques developed previously. Furthermore, we compute aperture distributions for non-sheared and sheared fracture models, highlighting the differences and similarities between both aperture metrics. A parallel can be drawn with the surface roughness estimation method proposed by Grasselli, which also operates on the surface mesh constructed from the 3D scan point cloud. Hausdorff distance is shown to perform best in the highly sloped regions, where the full dip of the mesh polygon becomes significant and vertical aperture inevitably overestimates the true geometric aperture of the fracture.
剪切过程中法向载荷对岩石裂隙颗粒输运影响的数值模拟
DOI：
--
发表时间：
2010
期刊：
影响因子：
--
作者：
T. Koyama;Bo Li;Yujing Jiang
通讯作者：
Yujing Jiang