Assessment of influence of loads and impacts on stress–strain behavior of natural–technical dump–its foundation system

The natural-and-technical system composed of a dump and its foundation possesses certain parameters, physical and mechanical properties and shear resistance, and experiences the external impacts and loads in the form of active shearing forces and the internal counter reaction. Using the experimental data on 20 external dumps after their deformation by means of shearing along the dump and its foundation interface, the model of the natural-and-technical system (NTS) of the dump and its foundation is built. The model is given an algorithm for estimating the weight of influence exerted by the impacts and loads on the stress–strain behavior of the dump–foundation NTS. For the design stability factor and the test characteristics (physical and mechanical properties of dump, shear resistance of foundation, hydrostatic pressure, earthquake-induced seismicity), the regression equations are obtained as an inverse polynomial relation (2nd order) with the close correlation ( > 0.7) of the stability factor with the hydrodynamic pressure D and seismic loads Q; as well as the direct linear relation is found between the stability factor and the internal counter reaction forces with the high correlation factor (r ≈ 1.0). The increments of arguments of the test characteristics, such that deviation of the stability factor is below a limiting value, are determined.

Ananenko E. V., Bakhaeva S. P. Assessment of influence of loads and impacts on stress–strain behavior of natural–technical dump–its foundation system. MIAB. Mining Inf. Anal. Bull. 2024;(10):5-21. [In Russ]. DOI: 10.25018/0236_1493_2024_10_0_5.

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

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

1. Ananenko E. V., Bakhaeva S. P. Deformation risk analysis and geomechanical monitoring for the natural–technical system of a spoil dump and its foundation. MIAB. Mining Inf. Anal. Bull. 2023, no. 9, pp. 5—21. [In Russ]. DOI: 10.25018/0236_1493_2023_9_0_5.

2. Jiang H., Liu X., Wei H., Zhang J., Zhang S. Stability evaluation of spoil dump slopes reinforced by air-injection drainage from the perspective of reliability analysis. Bulletin of Engineering Geology and the Environment. 2023, vol. 82, article 337. DOI: 10.1007/s10064-023-03348-4.

3. Bakhaeva S. P., Mikhaylova T. V. Accuracy establishment of surveying control of soil dams by deviation of the stability margin factor. Mine Surveying Bulletin. 2015, no. 3(106), pp. 19—22. [In Russ].

4. Gordeev V. A. Study of the accuracy of determining horizontal displacements during geodetic monitoring. Mine Surveying Bulletin. 2022, no. 1(146), pp. 13—19. [In Russ].

5. Gupta G., Sharma S. K., Sing G. S. P., Kishore N. Numerical modelling-based stability analysis of waste dump slope structures in open-pit mines-a review. Journal of the Institution of Engineers (India): Series D. 2021, vol. 102, pp. 589—601. DOI: 10.1007/s40033-021-00277.

6. Agafonov A. A., Porshneva T. V. Substantiation of stable parameters of dumps on the basis of a geomechanical model of designed objects. MIAB. Mining Inf. Anal. Bull. 2020, no. 3-1, pp. 5—20. [In Russ]. DOI: 10.25018/0236-1493-2020-31-0-5-20.

7. Chand K., Koner R. Failure zone identification and slope stability analysis of mine dump based on realistic 3D numerical modeling. Geotechnical and Geological Engineering. 2024, vol. 42, pp. 543—560. DOI: 10.1007/s10706-023-02588-1.

8. Verma H., Rudra E. S. C. K., Rai R., Pandian K. A., Manna B. Design of dump slope on weak foundation. Journal of the Institution of Engineers (India): Series D. 2023, vol. 104, pp. 107—118. DOI: 10.1007/s40033-022-00396-0.

9. Kutepov Yu. I., Kutepova N. A., Ponomarenko M. R., Kutepov Yu. Yu. Geomechanical monitoring of slope stability in pitwall and dumps in coal mining. Gornyi Zhurnal. 2023, no. 5, pp. 69—74. [In Russ]. DOI: 10.17580/gzh.2023.05.10.

10. Bharati A. K., Ray A., Rai R., Shrivastva B. K. A stability classification system for the dragline dump slope. Mining, Metallurgy & Exploration. 2021, vol. 38, pp. 1095—1109. DOI: 10.1007/s42461021-00409-8.

11. Babello V. A., Lizunkin M. V. Deformation of strong overburden rocks in dams and overburden dumps during operation of transport machines. Journal of Mining Science. 2023, vol. 59, pp. 579—585. DOI: 10.1134/S1062739123040075.

12. Mohanty M., Sarka R., Das S. K. Earthquake-induced damage assessment of coal mine overburden dump slope using extended finite element method coupled with voronoi tessellation scheme. Proceedings of 17th Symposium on Earthquake Engineering, vol. 3. 2022, pp. 39—49. DOI: 10.1007/978981-99-1579-8_4.

13. Kulikov V. I., Sharafiev Z. Z. Phenomenological model for evaluation of slope stability for overburden rock dumps. Journal of Mining Science. 2023, vol. 59, no. 5, pp. 770—775. DOI: 10.1134/ S1062739123050095.

14. Zhabko A. V., Volkomorova N. V., Zhabko N. M. Calculating of dumps stability laying on weak gently dipping interface. News of the Ural State Mining University. 2021, no. 1(61), pp. 87—101. [In Russ]. DOI: 10.21440/2307-2091-2021-1-87-101.

15. Rajak T. K., Yadu L. Assessment of mine overburden dump stability using numerical modelling. Geoenvironmental and Geotechnical Issues of Coal Mine Overburden and Mine Tailings. 2023, pp. 39—61. DOI: 10.1007/978-981-99-6294-5_3.

16. Tiwari A., Mandal B. B., Pathak K. Understanding runout behavior of overburden dump: insights for buffer zone design in open pit coal mines. Proceedings of the 10th Asian Mining Congress. 2023, pp. 99—109. DOI: 10.1007/978-3-031-46966-4_8.

17. Liu H., Jisen S., Tovele G. S. V., Tao C., Shuzhao C., Mawugnon B. K., Peng L. Application of photogrammetry and in-situ test technology in the stability evaluation of gangue dump slope. Bulletin of Engineering Geology and the Environment. 2023, vol. 82. DOI: 10.1007/s10064-022-02994-4.

18. Bakhaeva S. P., Zavorina E. N. Prediction of the laminated base stability considering influence of the sealing load on the rocks’ properties. Occupational Safety in Industry. 2011, no. 8, pp. 38—43. [In Russ].

19. Kutepov Y. I., Kutepova N. A., Karasev M. A., Vasilieva A. D., Kutepov Y. Y. Hydrogeomechanical processes in development of spoil dumps and hydraulic fills. Geomechanics and Geodynamics of Rock Masses — Selected Papers from the 2018 European Rock Mechanics Symposium, EUROCK 2018, Saint Petersburg, 2018, pp. 1—7.

20. Cheskidov V. V., Lipina A.V, Krasnotsvetov M. A. Modeling of the technogenic aquifer level in coal mine dumps. MIAB. Mining Inf. Anal. Bull. 2023, no. S5, pp. 3—19. [In Russ]. DOI: 10.25018/ 0236_1493_2023_6_5_3.