In this paper, problem of short-term production planning for dimension stone quarries was mathematically modeled using a binary integer programming. The model includes an objective function, which was founded as the minimization of the costs due to the total cutting planes of the blocks. This objective may cause to maximization of the net present value (NPV) in dimension stone quarries. During ...

Long-term production planning design is a major step in mine planning, because it determines the economic outcome of a project. Also long-term planes act as a guide for medium and short-term production scheduling. Because there are a large number of blocks within the ultimate pit limit, the pit can be divided into a series of sub-pits commonly called push backs, cut backs or phases. These push ...

Three-dimensional block models are the most frequently used tool for estimating mineral resources and reserves within a deposit. In open pit mining, basis of mine design long term mining schedule is calculation ultimate limit. The limit with highest profit value. Over years, different algorithms have been developed that enable us to calculate final pit: floating or mobile cone, cone II its corr...

The movement of raw materials can be one the most challenging tasks in open pit mining, with truck transportation representing largest factor mining costs and resulting major greenhouse gas (GHG) emissions. In this study, methods bulk within German hard-rock mines were investigated. Approximately 450 quarries studied for their production tonnage, lease areas, mined rock type as well processing ...

It is important that the strategic mine plan makes optimum use of available resources and provides continuous quality ore to drive sustainable mining profitability. This requires development a well-integrated strategy options for surface and/or underground their interactions. Understanding current tools methodologies used in industry transitions planning are essential dealing with complex deep-...

Surface movement under the combined mining of open-pit and underground caving is main problem affecting safe efficient mining. Taking Dahongshan Iron Mine as an example, a mechanical model for calculating surface range was established to reveal mechanism. The topography, zone, gravel filling zone depth were considered, principal stress calculated. Based on model, relationship between subsidence...

The article proposes to use grouting mixtures from industrial waste of steel manufacturing for casing blastholes. Its properties, defined in the course laboratory studies, are given. One main features proposed technology is production pipes directly hole using a cylindrical formwork moving along hole.