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Regulatory documents of the Republic of Kazakhstan in the field of substantiating the stability of slopes of pit edges are currently at variance with world practice in the design and operation of open-pit deposits. Modern design methods involve the creation of a three-dimensional complex geomechanical model of the field. Such a model contains information on the geological and structural composition that describes the disturbance of the solid mass by folds, tectonic faults, and jointing. It is important to accurate...

The history of mining using open-pit mining method indicates a trend of increase in depths of mining. At the beginning of the 20th century mining operations were carried out within sedimentary rocks and the maximum depth of pits of that time didn't exceed 100 m from a surface. However, several decades later the maximum depths of open-cast mine developments reached 200-300 m. Further growing demand for mineral raw materials caused an improvement of technique and technologies, the maximum depth of conducting open-ca...

In this article, the stages of creating three-dimensional geomechanical models in the development of deposits by open method are considered in detail, based on the results of calculating the safety factor of the open pit sides. The geomechanical model consists of four main components - geological, structural, hydrogeological models and rock mass model. The models are based on the geological, hydrogeological, geotechnical data of the field. Such geomechanical models allow to optimize the work of the whole enterpris...