Substantiation of stability criteria for waste dump–foundation natural–technical system

The commonly increasing heights and rates of dumping on the areas which are unfavorable in terms of stability result in dump slides. Thus, the process of dump piling requires a geomechanical supervision. Here, it is necessary to consider a natural–technical system representing a dump and its foundation since, according to some researchers, the characteristics of the foundation have a greater effect on the dump stability than the dump mass. On the basis of normative standards, and actually ensured accuracy of deformation observations and probability density of random errors, the limit measurement error is determined, and the overshoot of this limit implies the start of deformation of a dump. From the condition of position fixing of a check point at the required precision, the geomechanical monitoring procedure is developed for the dump–foundation natural–technical system, including information about deformation observation methods, and formulas and nomograms which, depending on the accuracy of measurement means, allow rapid determination of an allowable remoteness of a check point from a station using such methods as: geodetic position fixing, trigonometric levelling, satellite-based position fixing and laser scanning. On the basis of operating practice and geomechanical monitoring results, the qualitative and quantitative criteria are substantiated for estimating a geomechanical risk level. These criteria describe the dump–foundation natural–technical system, from the initial stage of its deformation and to the impermissible (emergency) condition, and make it possible to predict stability of the system. 

Bakhaeva S. P., Ananenko E. V. Substantiation of stability criteria for waste dump–foundation natural–technical system. MIAB. Mining Inf. Anal. Bull. 2025;(12-2):5-20.[In Russ]. DOI: 10.25018/0236_1493_2025_122_0_5.

S.P. Bakhaeva¹, Dr. Sci. (Eng.), Professor, e-mail: bsp.mdg@kuzstu.ru,
E.V. Ananenko¹, Graduate Student,  e-mail: ananenko_ev@mail.ru,
¹ T.F. Gorbachev Kuzbass State Technical University,  650000, Kemerovo, Russia.

E.V. Ananenko, e-mail: ananenko_ev@mail.ru.

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