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Structural Features of Ore Deposits Weathering
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Engineering and Mining Geophysics 2019 15th Conference and Exhibition, Apr 2019, Volume 2019, p.1 - 12
Abstract
The determining factors for the safe mining of the quarry are engineering-geological. From these factors depends on the choice of the optimal angles of laying the sides of the quarry, folded weathering crust. These include: zoning of weathering crust, type of weathering crust, mineral composition of parent rocks, climatic conditions, physical and mechanical properties of different engineering-geological zones of weathering crust. The formation of different geochemical and engineering-geological profiles of weathering crusts in the field under consideration has led to a change in physical and mechanical properties-they affect the choice of inclination of the quarry sides. In the weathering crust incorrectly selected corners of the sides of the quarry, contribute to the development of landslide formation. In assessing the development of landslide processes in dispersed rocks were considered 2 models of events. In the first model were taken the factor of resistance 1,2 in II – 1. The result of the analysis of models is to identify the safe angle of the side of the quarry, in which the risk of landslide processes will be minimal – the angle is 32°. A section of the field was built taking into account the angles of inclination in different zones of the weathering crust.