Fuzzy expert system for economic zonation of an ornamental slate deposit

摘要: Abstract Investigation of deposits for traditional extraction activities (metals and coal) has generally been based on determining grade, or content, the required material. In order to apply grade concept an ornamental rock such as slate, it is first necessary define variables that determine both geotechnical recovery rate mass — which conditions size extracted blocks – aesthetic features slate quality slabs potential roofing For this research, data a deposit were collected from 16 continuous core borehole samples. A fuzzy expert system was then developed using data, defining slab in accordance with criteria expert, producing final output zonation terms top medium waste. mathematical model logic chosen due fact boundaries between different groups are not clearly distinguished. Moreover, also depends company's infrastructures transformation blocks, its commercial strategies.