Rock mass block quality designation for marble production

Cluster analysis of fracturing in the deposits of decorative stone for the optimization of the process of quality control of block raw material

“…Paper [3] examined influence of natural fracturing on the productivity of technological complexes. It is worthwhile emphasizing a group of articles [4][5][6][7][8][9][10][11], the basic task of which was to assess blockiness of decorative stone deposits. This group of publications is characterized by the diversity of approaches to the definition of blockiness, in part due to different types of rocks that were examined.…”

“…Thus, papers [4,5] pay much attention to evaluation of blockiness based on the analysis of geometric ratios between the systems of cracks. The study of effect of fracturing on the quality of decorative stone deposit was the subject of articles [6][7][8][9][10][11]. Paper [6] examined the method of assessment of decorative stone deposit for obtaining block products based on results of fracturing measurement.…”

“…Paper [6] examined the method of assessment of decorative stone deposit for obtaining block products based on results of fracturing measurement. Article [7] assessed deposit quality for highly-blocked deposits of marble. Ref.…”

“…6) The information about the systems of cracks is important for assessing the main criterion of a decorative stone deposit -blockiness. Taking into account the experience of methods of determining the blockiness, which were implemented by the authors in [6][7][8]11], the basic task for adequate assessment of blockiness is the construction of appropriate predicting model of angular and linear ratios of the systems of cracks. When determining the angular ratio, the most rational approach is the approach to a crack as the plane in space.…”

Marble Slabs Classification System Based on Image Processing (Ark Marble Mine in Birjand)

“…The results indicated the capability of detecting erosions in surfaces and disperse cracks. In [34], a metric was introduced termed Block Quality Designation (BQD) for examining rock mass in the marble industry. A design system was presented in [35] in order to create images of patterns of marbling textile.…”