COMPREHENSIVE ASSESSMENT OF THE IMPACT OF HYDROGEOLOGICAL FACTORS ON THE STABILITY OF OPEN-PIT SLOPES

Norova  Khurshida  Yunusovna; Kadirov  Vokhid  Rakhimovich; Ravshanov  Zavkiddin  Yahyo oglu; Abdumalikov  Jamol  Hasankhonovich

This paper presents an analysis of the influence of hydrogeological conditions on
the stability of open pit slopes located within zones of tectonic disturbance. Based on field
investigations and long-term hydrogeological monitoring conducted within the Almalyk ore cluster
(Kalmakyr, Yoshlik-I, and Kurgashinkan deposits), the key factors affecting slope stability have been
identified. It has been established that groundwater inflows from fractured and karstified Paleozoic
rocks, as well as the presence of flooded abandoned pits, significantly increase the risk of slope
deformation and failure. A special role is attributed to tectonic faults, which act as filtration channels
for groundwater, leading to localized weakening of the rock mass and a reduction in rock strength.
Recommendations are proposed for groundwater control, pit dewatering, and reinforcement of slopes
exposed to filtration and leaching processes. The findings can be applied in hydrogeomechanical
modeling and in the development of safe mining technologies for deep open pits composed of fractured
rocks.

Jurnal nomiTechnical science and innovation
Nashr soni2025 №4 сон
Ko'rishlar soni 8

Internet havola

DOI

UzSCI tizimida yaratilgan sana 22-01-2026

O'qishlar soni 8

Nashr sanasi 22-01-2026

Asosiy tilIngliz

Sahifalar18-23

Kalit so'z

hydrogeological conditions

slope stability

open pits

tectonic disturbance zones

groundwater inflow

Kalmakyr deposit

Yoshlik-I deposit

English

This paper presents an analysis of the influence of hydrogeological conditions on
the stability of open pit slopes located within zones of tectonic disturbance. Based on field
investigations and long-term hydrogeological monitoring conducted within the Almalyk ore cluster
(Kalmakyr, Yoshlik-I, and Kurgashinkan deposits), the key factors affecting slope stability have been
identified. It has been established that groundwater inflows from fractured and karstified Paleozoic
rocks, as well as the presence of flooded abandoned pits, significantly increase the risk of slope
deformation and failure. A special role is attributed to tectonic faults, which act as filtration channels
for groundwater, leading to localized weakening of the rock mass and a reduction in rock strength.
Recommendations are proposed for groundwater control, pit dewatering, and reinforcement of slopes
exposed to filtration and leaching processes. The findings can be applied in hydrogeomechanical
modeling and in the development of safe mining technologies for deep open pits composed of fractured
rocks.

Kalit so'z

hydrogeological conditions

slope stability

open pits

tectonic disturbance zones

groundwater inflow

Kalmakyr deposit

Yoshlik-I deposit

№ Muallifning F.I.Sh. Lavozimi Tashkilot nomi

1 Norova K.Y. PhD, dotsent. Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*

2 Kadirov V.R. PhD, dotsent. Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*

3 Ravshanov Z.Y. student Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*

4 Abdumalikov J. . master Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*

№ Havola nomi

1 1. Kadirov, V.R., Karimov, Sh.V., Karshiboev, Z.J., Tuychiboev, E.I., & Malyushenko, D.S. (2025). Issledovanie vliyaniya vyemočnopogruzochnogo oborudovaniya i rabochey ploshchadki na ustoychivost’ ustupov [Study of the influence of mining and loading equipment and working area on bench stability]. Ugol, 1191(4), 59–65. (in Russian) 2. Kadirov, V., Karimov, S., Qushshayev, U., & Sharapova, D. (2021). Study on the influence of the deformation zones of the quarry sides on the rock mass movement. In E3S Web of Conferences (Vol. 304, p. 02002). EDP Sciences.

2 3. Kadirov, V.R., Umirzokov, A.A., Ravshanov, Z.Y., & Zaitova, M.N. (2021). Raschet ustoychivosti nizhnego uchastka borta kar’era “Muruntau” s uchetom programmnogo kompleksa «Ustoi» [Calculation of the stability of the lower part of the “Muruntau” quarry slope using the software complex “Ustoi”]. Central Asian Journal of Theoretical and Applied Science, 2(12), 335–341. (in Russian) 4. Kadirov, V.R., Kuziev, Kh., Kushnazorov, I., & Umirzokov, A.A. (2022). Vliyanie tektonicheskikh blokov na ustoychivost’ bortov glubokikh kar’erov [Influence of tectonic blocks on the stability of deep quarry slopes]. Barqarorlik va Yetakchi Tadqiqotlar Onlayn Ilmiy Jurnali, 2(9), 246– 251. (in Russian)

3 5. Kutepov, Y.Yu. (2024). Gidrogeomekhanicheskoe obosnovanie ustoychivosti bortov kar’erov pri razmeshchenii v nikh zhidkikh promyshlennykh otkhodov [Hydrogeomechanical justification of quarry slope stability when disposing of liquid industrial wastes]. Mining Informational and Analytical Bulletin (MIAB), (9), 65–77. (in Russian) 6. Protosenya, A.G., & Chebakov, A.V. (n.d.). Vliyanie inzhenerno-geologicheskikh i gidrogeologicheskikh usloviy na deformirovanie bortov kar’era [Influence of engineering-geological and hydrogeological conditions on quarry slope deformation]. Zapiski Gornogo Instituta, T.189, ISSN 0135-3500. (in Russian) 7. Kadirov, V.R., Makhmudov, D.R., Ochilov, Sh.A., & Kusshaev, U.K. (2020). Obosnovanie i vybor raschetnykh geomekhanicheskikh modeley [Justification and selection of computational geomechanical models]. In European Scientific Conference (pp. 39–43). (in Russian)

Kutilmoqda

№	Muallifning F.I.Sh.	Lavozimi	Tashkilot nomi
1	Norova K.Y.	PhD, dotsent.	Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*
2	Kadirov V.R.	PhD, dotsent.	Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*
3	Ravshanov Z.Y.	student	Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*
4	Abdumalikov J. .	master	Tashkent State Technical University, Tashkent city, Republic of Uzbekistan)*

№	Havola nomi
1	1. Kadirov, V.R., Karimov, Sh.V., Karshiboev, Z.J., Tuychiboev, E.I., & Malyushenko, D.S. (2025). Issledovanie vliyaniya vyemočnopogruzochnogo oborudovaniya i rabochey ploshchadki na ustoychivost’ ustupov [Study of the influence of mining and loading equipment and working area on bench stability]. Ugol, 1191(4), 59–65. (in Russian) 2. Kadirov, V., Karimov, S., Qushshayev, U., & Sharapova, D. (2021). Study on the influence of the deformation zones of the quarry sides on the rock mass movement. In E3S Web of Conferences (Vol. 304, p. 02002). EDP Sciences.
2	3. Kadirov, V.R., Umirzokov, A.A., Ravshanov, Z.Y., & Zaitova, M.N. (2021). Raschet ustoychivosti nizhnego uchastka borta kar’era “Muruntau” s uchetom programmnogo kompleksa «Ustoi» [Calculation of the stability of the lower part of the “Muruntau” quarry slope using the software complex “Ustoi”]. Central Asian Journal of Theoretical and Applied Science, 2(12), 335–341. (in Russian) 4. Kadirov, V.R., Kuziev, Kh., Kushnazorov, I., & Umirzokov, A.A. (2022). Vliyanie tektonicheskikh blokov na ustoychivost’ bortov glubokikh kar’erov [Influence of tectonic blocks on the stability of deep quarry slopes]. Barqarorlik va Yetakchi Tadqiqotlar Onlayn Ilmiy Jurnali, 2(9), 246– 251. (in Russian)
3	5. Kutepov, Y.Yu. (2024). Gidrogeomekhanicheskoe obosnovanie ustoychivosti bortov kar’erov pri razmeshchenii v nikh zhidkikh promyshlennykh otkhodov [Hydrogeomechanical justification of quarry slope stability when disposing of liquid industrial wastes]. Mining Informational and Analytical Bulletin (MIAB), (9), 65–77. (in Russian) 6. Protosenya, A.G., & Chebakov, A.V. (n.d.). Vliyanie inzhenerno-geologicheskikh i gidrogeologicheskikh usloviy na deformirovanie bortov kar’era [Influence of engineering-geological and hydrogeological conditions on quarry slope deformation]. Zapiski Gornogo Instituta, T.189, ISSN 0135-3500. (in Russian) 7. Kadirov, V.R., Makhmudov, D.R., Ochilov, Sh.A., & Kusshaev, U.K. (2020). Obosnovanie i vybor raschetnykh geomekhanicheskikh modeley [Justification and selection of computational geomechanical models]. In European Scientific Conference (pp. 39–43). (in Russian)