Comparing integral indicators and cothe safety factor of pit’s sideJournal: Bulletin of Prydniprovs'ka State Academy of Civil Engineering and Architecture (Vol.2018, No. 5)
Publication Date: 2019-06-19
Authors : Romanenko A. O.;
Page : 83-88
Keywords : zoning; divisioninto districts; integrated indicator; quarry; factor; stability inventory coefficient;
Purpose Comparing of the safety factor and the integral indicator obtained with the help of a set of experimental statistics on the factors influence on rock massif and their reduction to dimensionless indicators. Statement of the main material. The method for determining the weight of factors that basis on empirically obtained data is determined. For example, the seismic effect of drilling-blasting operations on the stability of the pit sections was taken. Further, the values of the integral indicator and the stability factor for the conditions of the Inguletskyi quarry are compared. In order to consider the integral indicator in comparison with the stability factor of the array, it is necessary to bring them to a single scale. Taking for the statement that the state of limiting balance with the integral indicator occurs when its value is 0, and for the stability factor, the state of limiting balance is characterized by a value of 1. So, to compare these quantities, we need to do the following, subtract one from the stability factor. Now we can say that the stability reserve will also take the state of limiting balance when it's value is 0. Scientific novelty. For the first time, the integral indicator was compared with the stability factor of the quarry's side, which made it possible to determine the refinement degree of the bead's stability due to the multifactorial analysis that is used as the basis for determining the integral indicator. Conclusions: the weight of each individual factor must be considered by determining its influence on the basic safety factor; the integral indicator allows us to clarify the stability of the quarries of quarries by 6-15%, but this value can be increased with a high RLD factor, because the RDL factor has no boundaries on the acquired value, and the integral indicator is limited by the reduced value, since it uses a method of reducing the influence of various factors up to dimensionless quantities, which characterize the sector as a whole.
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