Sultanbekova

@official.satbayev.university

Department of Management and Mathematical Economics
satbayev university

https://researchid.co/zhanat_sultanbekova

EDUCATION

higher technical education,Candidate of Technical Sciences

RESEARCH INTERESTS

project management, mining

Scopus Publications

105

Scholar Citations

Scholar h-index

Scholar i10-index

Scopus Publications

The impact of project management maturity on the choice of SME growth strategies: the case of Kazakhstan
Alexey Tsekhovoy, Zhanat Sultanbekova, Alexey Stepanov, and Larissa Statsenko
Inderscience Publishers

FEATURES OF OPTIMIZING THE CALENDAR SCHEDULE OF OPEN-PIT MINING BY STEEPLY INCLINED LAYERS
Serik Moldabayev, Zhanat Sultanbekova, Madiyar Sarybayev, Tolegen Adil, and Madinur Akhmetova
STEF92 Technology
The transition to mining benches with transverse panels from top to bottom within the boundaries of steeply inclined layers does not allow transforming the results of mininggeometric analysis sequentially for each individual stage of mining into a calendar schedule of mining operations. Therefore, a model is offered for converting the results of mining-geometric analysis into a calendar schedule of mining operations with sequential mining of benches from top to bottom using phased volumes of overburden rocks and ore reserves of adjacent steeply inclined layers. Each next stage of mining includes ore reserves of the previous steeply inclined layer and volumes of overburden rocks of the adjacent steeply inclined layer. In this case, the time of simultaneous mining of ore reserves and overburden in adjacent steeply inclined layers is assumed to be equal and should ensure the fulfillment of the annual design volumes of ore extraction. A reduction of overburden excavation, due to a significant increase in the slope angle of the pit walls of the steeply inclined layers, is achieved with the provision of independent high-rhythmic overburden and mining operations even on round shaped open pit fields. The studied technology of mining benches transverse panels in steeply inclined layers below the thickness of loose overburden rocks could improve technological development of deep and ultra-deep open pit mines, especially with combined motor-conveyor transport. Optimization of the calendar schedule of mining operations when mining rock overburden and ore with transverse panels in steeply inclined layers was performed at the ultra-deep Kacharsky open pit mine.

TECHNOLOGY OF AN OPEN PIT REFINEMENT UNDER LIMIT STABILITY OF SIDES
S. K Moldabayev, Zh. Zh Sultanbekova, A. A Adamchuk, N. O Sarybaev, and A. N Nurmanova
Dnipro University of Technology
Purpose. To establish the feasibility of refining deep open-pit mines below the boundary of the use of combined motor-conveyor transport with an increased slope angles of the pit walls using the developed transport unit for reloading rocks to overlying horizons during the reactivation of pillars under transport berms. Methodology. Preparation of a digital block model of the deposit, the elaboration of 3D geomechanical models for the dynamics of mining, 2D and 3D numerical simulation of the rock stress-strain state of the outcrops of opencast workings, mathematical modeling of stepwise ore reserves and mining schedule, patent research and feasibility study. Findings. It is advisable to carry out mining in terms of the marginal rock state with an increase in the slope of the pit sides below the limit of application of the cyclic and continuous method in ultra-deep open pits. Such design of pit sides is achieved when benches are mined from top to bottom within the boundaries of steeply inclined layers with the use of inter-bench loaders of the developed designed in the completion zone. Provisions for the selection and feasibility of using the loader in the deep zone are formulated based on demarcation of application zones of cyclic (road transport) and cyclic-flow (combined road-conveyor transport) technologies. Originality. Schematization of the mining operation was performed based on the calculated values of safety factor of sides, which allows increasing the slope angles of the pit walls of even ultra-deep open pits in the completion zone. It was found that with deepening of mining, the zones of potential sliding move away from the loose overburden to lower ore benches closer to the final depth of the Kacharsky open pit (760 m), but the safety factor corresponds to the required value according to the design standards. Practical value. An increase in the slope of the pit walls in the completion zone can be achieved using the developed loading installation, the main difference of which is that it can be moved without dismantling under conditions of reactivation of transport pillars (with an increase in lifting height by 1.54.5 times compared to the known equipment).

Probabilistic assessment of slope stability at ore mining with steep layers in deep open pits
Olena Sdvyzhkova, Serik Moldabayev, Atac Bascetin, Dmytro Babets, Erzhan Kuldeyev, Zhanat Sultanbekova, Maksat Amankulov, and Bakhytzhan Issakov
Dnipro University of Technology
Purpose. A methodology development for predicting the geomechanical situation when mining an ore deposit with steep-dipping layers, taking into account the uncertainty in determining the rock properties, which is a consequence of the rock mass heterogeneity. Methods. The assessment of the open-pit wall stability is based on a combination of numerical simulation of the rock stress-strain state (SSS) and probabilistic analysis. The finite element method is used to determine the changes in the SSS that occur at various stages of mining operations due to design changes in the overall open-pit slope angle. The elastic-plastic model of the medium and the Mohr-Coulomb failure criterion are implemented in the codes of the 3D finite element analysis program RS3 (Rocscience). Stochastic simulation is used to assess random risks associated with natural object state variations. Findings. The distribution of maximum shear strains, which localizes the real or potential sliding surfaces in the open-pit wall at various stages of ore mining, has been identified. Based on the Shear Strength Reduction procedure, the open-pit wall Strength Reduction Factor (SRF) has been determined. The probabilities of open-pit wall stability loss, as well as the decrease in the strength reduction factor below the standard level at all stages of the ore body mining, have been revealed. Originality. For the first time, for real mining-geological conditions of a deep ore open pit, the dependence of the strength reduction factor on the overall wall slope angle, which changes during mining of each steep layer, has been determined. For each stage of mining operations, for the first time, the probability of a decrease in the open-pit wall stability below the standard level has been determined based on stochastic simulation. Practical implications. The ratio between the open-pit contour characteristic (overall slope angle) and the probabilistic safety factor is the basis for practical solutions to ensure the efficiency and safety of mining at various stages of friable and hard overburden excavation, ore extraction, as well as for the subsequent optimization of the open-pit design contours.

Risks study during implementation of combined transport on ore open pit mines
Zhanat Sultanbekova, Aleksei Tsekhovoy, Serik Moldabayev, and Nurzhigit Sarybayev
STEF92 Technology

Methodological approach to creation of the 3D model of an oval-shaped open pit mine
Serik Moldabayev, Bolatbek Rysbaiuly, Zhanat Sultanbekova, and Nurzhigit Sarybayev
EDP Sciences
A 3D model of optimal contours phased development of oval-shaped open pit mines is proposed in the article. It is assumed that with enough accuracy the volumetric contour of the open pit mine is interpolated by an elongated elliptic hyperboloid. The calculation formulas for mineral resources are derived and optimal volumes of overburden are determined depending on the mining phase. In this case, the total number of mining phases is set in advance. The stripping ratio is used as a quality criterion of the optimization task. The problem of optimal control is solved using the Bellman function in dynamic programming. All the necessary calculation formulas are obtained in the final form by solving the optimization problem. Their simplicity and substantiation of each conclusion ensure that the results of this study can be successfully applied in practical calculations of the design and planning of mining operations in open pit mining.

Method of optimizing cyclic and continuous technology complexes location during finalization of mining deep ore open pit mines
Serik Moldabayev
STEF92 Technology

Management reserves of mining operations mode in open pit mining of steeply dipping mineral occurences
Serik Moldabayev
Stef92 Technology

Provision of possibility of constructing conveyor hoist in a stationary position during developemnt of a working zone on steep pit edges of an open-pit mine
Serik Moldbayev
Stef92 Technology

Application of the pert method in parameters matching within the evaluator group module

Mathematic model for parameter matching in evaluators group model with application of the distributed information processing principle

Applying the distributed information processing principle in opencast mining design

Creating the effective implementation of double subbench mining technology
V. Bondarenko, I. Kovalevska and K. Ganushevych
CRC Press

RECENT SCHOLAR PUBLICATIONS

The impact of project management maturity on the choice of SME growth strategies: the case of Kazakhstan
A Tsekhovoy, Z Sultanbekova, A Stepanov, L Statsenko
International Journal of Business Innovation and Research 34 (5), 1-30 2024

Probabilistic assessment of slope stability at ore mining with steep layers in deep open pits
O Sdvyzhkova, S Moldabayev, A Başetin, D Babets, E Kuldeyev, ...
Mining of Mineral Deposits 16 (4) 2022

FEATURES OF OPTIMIZING THE CALENDAR SCHEDULE OF OPEN-PIT MINING BY STEEPLY INCLINED LAYERS
S Moldabayev, Z Sultanbekova, M Sarybayev, T Adil, M Akhmetova
International Multidisciplinary Scientific GeoConference: SGEM 22 (1.1), 281-288 2022

Risks study during implementation of combined transport on ore open pit mines
Z Sultanbekova, A Tsekhovoy, S Moldabayev, N Sarybayev
International Multidisciplinary Scientific GeoConference: SGEM 20 (1.2), 259-266 2020

Method of optimizing cyclic and continuous technology complexes location during finalization of mining deep ore open pit mines
S Moldabayev, Z Sultanbekova, A Adamchuk, N Sarybayev
International Multidisciplinary Scientific GeoConference: SGEM 19 (1.3), 407-414 2019

Methodological approach to creation of the 3D model of an oval-shaped open pit mine
S Moldabayev, B Rysbaiuly, Z Sultanbekova, N Sarybayev
E3S Web of Conferences 123, 01049 2019

Justification of transfer parameters in conditions of deep zone development of iron ore surface mines
SK Moldabayev, OO Shustov, AA Adamchuk, ZZ Sultanbekova
Recommended for publication by the Scientific Research Council of the Uni 2019

Management reserves of mining operations mode in open pit mining of steeply dipping mineral occurences
S Moldabayev, Z Sultanbekova, A Toktarov
International Multidisciplinary Scientific GeoConference: SGEM 17 (1.3), 519-528 2017

PROVISION OF POSSIBILITY OF CONSTRUCTING CONVEYOR HOIST IN A STATIONARY POSITION DURING DEVELOPEMNT OF A WORKING ZONE ON STEEP PIT EDGES OF AN OPEN-PIT MINE
S Moldbayev, Z Sultanbekova, A Toktarov, N Sarybayev
International Multidisciplinary Scientific GeoConference: SGEM 17 (1.3), 693-699 2017

Dynamic model of new order of working zone forming realization on steep boards of oval form quarries
S Moldabayev, B Rysbayuly, Z Sultanbekova, Y Aben, N Sarybayev
6th International Conference on Computer Applications in the Minerals 2016

Justification of Countours Belonging to the Stages of Mining Steeply Dipping Deposits Using the Solution of the Problem of Nonlinear Programming
SK Moldabayev, B Rysbaiuly, ZZ Sultanbekova
Mine Planning and Equipment Selection: Proceedings of the 22nd MPES 2014

Optimization of mining schedule during safe development of working zones along steeply inclined open pit edges
SK Moldabayev, ZZ Sultanbekova, KB Rysbekov

MOST CITED SCHOLAR PUBLICATIONS

Probabilistic assessment of slope stability at ore mining with steep layers in deep open pits
O Sdvyzhkova, S Moldabayev, A Başetin, D Babets, E Kuldeyev, ...
Mining of Mineral Deposits 16 (4) 2022
Citations: 31

Methodological approach to creation of the 3D model of an oval-shaped open pit mine
S Moldabayev, B Rysbaiuly, Z Sultanbekova, N Sarybayev
E3S Web of Conferences 123, 01049 2019
Citations: 15

Publications

Risks study during implementation of combined transport on ore open pit mines
Sultanbekova, Z., Tsekhovoy, A., Moldabayev, S., Sarybayev, N.O.
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEMthis link is disabled, 2020, 2020-August(1.2), стр. 259–266