Klanfar Mario, Korman Tomislav, Domitrović Dubravko, Herceg Vjekoslav
Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, HR, 10000, Zagreb, Croatia.
Sci Data. 2025 Mar 27;12(1):513. doi: 10.1038/s41597-025-04862-8.
The angle of repose (AoR) is critical for studying granular materials in mining, geotechnical engineering, pharmaceuticals, and agriculture. Accurate AoR measurements are essential for understanding material stability and movement. The descriptor includes photographs of 86 heaps of rock materials dolomite, quartz sand, marble, and gravel. In addition, photographs of 1 ideal cone and 4 CAD drawing models are provided. These images are processed using specialized software to create detailed 2D and 3D models of the heaps. The generated STL and point-cloud models can be used to calculate the AoR with high accuracy, taking into account the complex surface morphology that traditional methods may overlook. Additionally, these models enable standardized comparisons and can be used for calibration purposes. This data facilitates the development and validation of new AoR measurement methods, enhancing the reliability and consistency of granular material analysis.
休止角（AoR）对于研究采矿、岩土工程、制药和农业中的颗粒材料至关重要。准确的休止角测量对于理解材料稳定性和运动至关重要。该描述符包括86堆岩石材料（白云石、石英砂、大理石和砾石）的照片。此外，还提供了1个理想圆锥体和4个CAD绘图模型的照片。这些图像使用专门软件进行处理，以创建堆体的详细二维和三维模型。生成的STL和点云模型可用于高精度计算休止角，同时考虑到传统方法可能忽略的复杂表面形态。此外，这些模型能够进行标准化比较，并可用于校准目的。这些数据有助于新休止角测量方法的开发和验证，提高颗粒材料分析的可靠性和一致性。
