SGP-Ruda LLC, Saint-Petersburg, Russia

A. M. Bulaeva, Head of Group, gulgina10@mail.ru

Tsvetmetengineering LLC, Saint-Petersburg, Russia

A. A. Dunyushin, Hydrogeologist

In 2022–2023, Giprotsvetmet JSC carried out a feasibility study of the permanent exploration conditions at the joint open pit mine designed to develop the gold–copper–porphyry deposit of Oliy Ziyo (Kalmakyr and Yoshlik I sites) with the appraisal of ore reserves. In order to assess the forecast inflow of groundwater into the project contour of the open pit mine, a large array of data was analyzed and summarized, including the results of numerical hydrogeological models developed by VIOGEM and SRK Consulting in 2020–2021. The established deadlines for the implementation of the work and the analyses of the hydrogeological conditions of the field have determined the tool for solving the task. Thus, the assessment of the forecast inflow of groundwater into the projected joint mine contour was carried out using the analytic element method-based hydrogeological model (AnsAEM module implemented in ANSDIMAT software package). In certain hydrogeological conditions, the analytic element method-based hydrogeological models can serve as a suitable alternative to numerical modeling, offering a number of advantages.

1. Haitjema H. M. Analytic element modeling of groundwater flow. San Diego : Academic Press, 1995. 394 p.
2. Sindalovskiy L. N. Hydrogeological Calculations in ANSDIMAT. Saint-Petersburg : Nauka, 2021. 891 p.
3. Hydrogeological Substantiation of Activities to Protect Dumping Site from Flooding. Belgorod : VIOGEM, 2020.
4. Gaibnazarov B. A. Geology and hydrogeology of AGMK’s Yoshlik open pit mine site: A brief review. Academy. 2021. No. 3(66). pp. 8–12.
5. Final Appraisal of Joint Gold–Copper–Porphyry Deposit of Oliy Ziya (Kalmakyr and Yoshlik sites) for Open Pit Mining as of January 1, 2021. Giprotsvetmet, Almalyk. Moscow, 2021.
6. Feasibility Study of Expansion of the Almalyk Copper–Gold Ore Project : Hydrogeology and Water Use. SRK Consulting (Kazakhstan) Limited, 2021.
7. Stability Assessment of the Northeastern and Northern Slopes at the Kalmakyr Open Pit Mine Using an Integrated Method with Regard to the Influence of the Flooded Kurgashinkan Open Pit and Understream Flows at the Pit Limits. Tashkent : Gosudarstvennyi tekhnicheskiy universitet im. Abu Raykhana Beruni, 2016.
8. Isomatov Yu. P., Gaibnazarov B. A. On the peculiarities of changes in hydrogeological conditions during the development of the Yoshlik field. International Journal of Advanced Technology and Natural Sciences. 2021. Vol. 2(1). pp. 4–8.
9. Strack O. D. L. Groundwater Mechanics. Englewood Cliffs : Prentice-Hall, 1989. 732 p.
10. Strack O. D. L. Analytical Groundwater Mechanics. Cambridge : Cambridge University Press, 2017. 448 p.
11. Steward D. R. Analytic Element Method: Complex Interactions of Boundaries and Interfaces. Oxford : Oxford University Press, 2020. 384 p.
12. Bakker M., Post V. Analytical Groundwater Modeling: Theory and Applications Using Python. London : CRC Press, 2022. 242 p.
13. Strack O. D. L. Applications of Vector Analysis and Complex Variables in Engineering. Cham : Springer, 2020. 215 p.
14. Strack O. D. L., Namazi T. A new formulation for steady multiaquifer flow: An analytic element for piecewise constant infiltration. Water Resources Research. 2014. Vol. 50, Iss. 10. pp. 7939–7956.
15. Toller E. A. L., Strack O. D. L. Interface Flow with Vertically Varying Hydraulic Conductivity. Water Resources Research. 2019. Vol. 55, Iss. 11. pp. 8514–8525.
16. AnsAEM—Creation of Hydrogeological Models Using the Analytic Element Method. ANSDIMAT. Available at: https://ansdimat.com/Ru/ansaem/ (accessed: 28.02.2026).