Journals →  Gornyi Zhurnal →  2025 →  #1 →  Back

GEOMECHANICAL SUPPORT OF FIELD DEVELOPMENT
ArticleName The analysis of physical and mechanical properties of backfill in triaxial compression and in oedometer test
DOI 10.17580/gzh.2025.01.18
ArticleAuthor Trofimov A. V., Popov M. S., Kirkin A. P., Ilchenko N. M.
ArticleAuthorData

Gipronickel Institute, Saint-Petersburg, Russia

A. V. Trofimov, Head of Geotechnical Engineering Laboratory, Candidate of Engineering Sciences, TrofimovAV@nornik.ru
M. S. Popov, Researcher
A. P. Kirkin, Senior Researcher, Candidate of Engineering Sciences
N. M. Ilchenko, 1st Class Engineer

Abstract

In mining, backfill mixtures are used to fill mined-out voids in order to control rock pressure, as well as in closure of underground mine workings. The compositions of backfill help reduce displacement and deformation of the overlying rock mass and the earth’s surface. The main indicator of backfill capacities is, as a rule, the uniaxial compression strength, but it is insufficient for the in-depth analysis of influence exerted by backfill properties on movement processes. The most important are the compression properties of backfill, which characterize compressibility of “stiff walls”, the complete stress–strain curve in triaxial compression, as well as the cohesion and the internal friction modulus. For the present research, 15 formulations of backfill of various types and grades were prepared. Determination of the strength characteristics and compressibility of backfill are the key factors in solving a number of problems in underground mine design and planning. The tests were carried out to determine the limit strength of cube samples at various duration of hardening, which revealed the strength development dynamics in backfill with respect to time. From the results of the triaxial compression test, the yield strength, limit strength and residual strength, as well as the resultant modulus of deformation, adhesion and the angle of internal friction were determined. These parameters are used as the input data in numerical models. The compression properties of the backfill samples were tested, which made it possible to calculate the porosity coefficient, compressibility coefficient and the oedometric modulus of deformation. The data obtained after volumetric compression and oedometer tests provide more detailed information about the physical processes taking place in backfill in the course of time, and also allow using more accurate data in numerical modeling.

keywords Physical and mechanical properties, backfill mixture, limit strength, compression properties, compressibility coefficient, triaxial compression, backfill deformation modulus
References

1. Lapinskas A. A. Influence of mining rent on the efficiency of using natural potential: the paradox of plenty and its Russian specifics. Journal of Mining Institute. 2023. Vol. 259. pp. 79–94.
2. Litvinenko V. S., Petrov E. I., Vasilevskaya D. V., Yakovenko A. V., Naumov I. A. et al. Assessment of the role of the state in the management of mineral resources. Journal of Mining Institute. 2023. Vol. 259. pp. 95–111.
3. Pleshko M. S., Pankratenko A. N., Pleshko M. V., Nasonov A. A. Assessment of stress–strain behavior of shaft lining in bottomhole area during sinking by real-time monitoring and computer modeling data. Eurasian Mining. 2021. No. 1. pp. 25–30.
4. Valiev N. G., Berkovich V. Kh., Propp V. D., Kokarev K. V. The problems of developing protection pillars under the exploitation of ore deposits. Izvestiya vuzov. Gornyi zhurnal. 2018. No. 2. pp. 4–9.
5. Darbinyan T. P., Tsymbalov A. A., Zubov V. P., Kolganov A. V. Impact of rock mass jointing on dilution of disseminated copper–nickel ore in Oktyabrsky Mine. Gornyi Zhurnal. 2023. No. 6. pp. 19–25.
6. Kholodilov A. N., Istomin R. S., Kirilenko V. I. Improvement technique for manufacturing equivalent materials for modeling nonlinear geomechanical processes in underground mineral mining. MIAB. 2024. No. 10. pp. 108–122.
7. Raut S. P, Ralegaonkar R. V., Mandavgane S. A. Development of sustainable construction material using industrial and agricultural solid waste: A review of waste- create bricks. Construction and Building Materials. 2011. Vol. 25, Iss. 10. pp. 4037–4042.
8. Du X., Li X., Feng Q., Meng L., Sun Y. Environmental risk assessment of industrial byproduct gypsum utilized for filling abandoned mines. International Journal of Coal Science and Technology. 2022. Vol. 9. DOI: 10.1007/s40789-022-00520-1
9. Khairutdinov A., Ubysz A., Adigamov A. The concept of geotechnology with a backfill is the path of integrated development of the subsoil. IOP Conference Series: Earth and Environmental Science. 2021. Vol. 684. ID 012007.
10. Kongar-Syuryun C., Tyulyaeva Yu., Khairutdinov A. M., Kowalik T. Industrial waste in concrete mixtures for construction of underground structures and minerals extraction. IOP Conference Series: Materials Science and Engineering. 2020. Vol. 869, No. 3. ID 032004.
11. Feng G., Jia X., Guo Y., Qi T., Li Z. et al. Study on mixture ratio of gangue-waste concrete cemented paste backfill. Journal of Mining and Safety Engineering. 2016. Vol. 33, No. 6. pp. 1072–1079.
12. Rahman Md., Ghataora G. Use of waste gypsum for trench backfill. International Journal of Geotechnical Engineering. 2011. Vol. 5, Iss. 4. pp. 405–413.
13. Qiu H., Gui H., Fang P., Li G. Groundwater pollution and human health risk based on Monte Carlo simulation in a typical mining area in Northern Anhui Province, China. International Journal of Coal Science & Technology. 2021. Vol. 8. pp. 1118–1129.
14. Zhang Y., Liu Y., Lai X., Cao S., Yang Y. et al. Transport mechanism and control technology of heavy metal ions in gangue backfill materials in short-wall block backfill mining. Science of The Total Environment. 2023. Vol. 895. ID 165139.
15. Jiang H., Zheng J., Fu Y., Wang Z., Yilmaz E. et al. Slag-based stabilization/solidification of hazardous arsenic-bearing tailings as cemented paste backfill: Strength and arsenic immobilization assessment. Case Studies in Construction Materials. 2024. Vol. 20. ID e03002.
16. Kongar-Syuryun Ch., Ubysz A., Faradzhov V. Models and algorithms of choice of development technology of deposits when selecting the composition of the backfilling mixture. IOP Conference Series: Earth and Environmental Science. 2020. Vol. 684. ID 012008.
17. Garnier C., Pastor M.-L., Eyma F., Lorrain B. The detection of aeronautical defects in situ on composite structures using Non Destructive Testing. Composite Structures. 2011. Vol. 93, Iss. 5. pp. 1328–1336.
18. Trofimov A. V., Rumyantsev A. E., Gospodarikov A. P., Kirkin A. P. Non-destructive ultrasonic method of testing the strength of backfill concrete at deep Talnakh mines. Tsvetnye Metally. 2020. No. 12. pp. 28–33.
19. Guo Y., Zhao Y., Feng G., Ran H., Zhang Y. Study on damage size effect of cemented gangue backfill body under uniaxial compression. Chinese Journal of Rock Mechanics and Engineering. 2022. Vol. 40, No. 12. pp. 2434–2444.
20. Saeedifar M., Zarouchas D. Damage characterization of laminated composites using acoustic emission: A review. Composites Part B: Engineering. 2020. Vol. 195. ID 108039.
21. Li L., Xu L., Huang L., Xu F., Huang Y. et al. Compressive fatigue behaviors of ultra-high performance concrete containing coarse aggregate. Cement and Concrete Composites. 2022. Vol. 128. ID 104425.
22. Ratnam U. V., Prasad K. N. Compressibility behaviour of compacted soils—Hyperbolic modeling. International Journal of Civil Engineering and Technology. 2020. Vol. 11, Iss. 2. pp. 31–42.
23. Ratnam U. V., Prasad K. N. Prediction of compaction and compressibility characteristics of compacted soils. International Journal of Applied Engineering Research. 2020. Vol. 14, No. 3. pp. 621–632.
24. Prakash K., Sridharan A., Prasanna H. S. Compression curves and compression indices of compacted montmorillonitic and kaolinitic soils. Geotechnical and Geological Engineering. 2024. Vol. 42, Iss. 1. pp. 755–765.
25. Paranthaman R., Azam S. A physicochemical framework for saturated-unsaturated behavior of low plasticity compacted clays. Geotechnical and Geological Engineering. 2023. Vol. 42, Iss. 3. pp. 1957–1976.
26. Sridharan A., Rao G. Mechanisms controlling volume change of saturated clays and the role of the effective stress concept. Géotechnique. 1973. Vol. 23, Iss. 3. pp. 359–382.

Language of full-text russian
Full content Buy
Back