Improvement of technology for the development of complex-structured carbonate deposits with the use of modernized surface mine

Complex-structural carbonate deposits are characterized by high variability in the qualitative characteristics of the layers of useful stratum, and therefore, in order to obtain the greatest economic effect in the development of such reserves, it is necessary to ensure highquality selective extraction of raw materials. Carbonate massifs are composed mainly of rocks of low strength, the selective layer-by-layer mass excavation of which can be effectively carried out using surface miners, however, the presence of separate layers of relatively strong rocks makes mechanical loosening difficult, reduces the productivity of combines and can lead to their breakdowns. For the development of gently sloping complex-structured seams, a technical and technological solution is proposed using a modernized surface miner, which provides preliminary softening of a layer of strong rocks by means of a unit for cutting discontinuous slots with the supply of a solution of surfactants into them, followed by mechanical loosening of the softened layer. Mechanical loosening of layers composed of rocks of low strength is carried out without their preliminary softening. A dependence is proposed for determining the width of intermittent slots to accommodate the required volume of solution in them. The miner is also equipped with a storage hopper, which provides the possibility of non-stop loosening of the array when replacing dump trucks under loading. The implementation of the proposed solution will increase the productivity of the excavation and reduce the cost of mining operations.

Cheban A. Yu. Improvement of technology for the development of complexstructured carbonate deposits with the use of modernized surface mine. MIAB. Mining Inf. Anal. Bull. 2024;(7-1):15-24. [In Russ]. DOI: 10.25018/0236_1493_2024_71_0_15.

The studies were carried out using the resources of the Center for Shared Use of Scientific Equipment «Center for Processing and Storage of Scientific Data of the Far Eastern Branch of the Russian Academy of Sciences», funded by the Russian Federation represented by the Ministry of Science and Higher Education of the Russian Federation under project No. 075-15-2021-663.

A.Yu. Cheban, Cand. Sci. (Eng), Leading Researcher, e-mail: chebanay@mail.ru, Institute of Mining of Far East Branch of the Russian Academy of Sciences, Khabarovsk, Russia, ORCID ID: 0000-0003-2707-626X.

1. Safronov V. P., Zaitsev Yu. V., Safronov V. V., Pankratov A. V. Selective system of limestone mining — the prospect of expanding the range of products of a mining enterprise. News of the Tula state university. Technical sciences. 2015, no. 7-2, pp. 160—168. [In Russ].

2. Fomin S. I., Vinogradov I. P., Lapshin N. S. Determining length of mining front in non-blast open mining of complex structure carbonate deposits. Journal of Engineering and Applied Sciences. 2020, vol. 15, pp. 94—98. DOI: 10.36478/jeasci.2020.94.98.

3. Stromonogov A. V. Optimization of non-blasting method of carbonate stone block cutting in the Russian Platform. MIAB. Mining Inf. Anal. Bull. 2017, no. 9, pp. 185—190. [In Russ]. DOI: 10.25018/0236-1493-2017-9-0-185-190.

4. Trubetskoi K. N., Zakharov V. N., Galchenko Y. P. Naturelike and convergent technologies for developing lithosphere mineral resources. Herald of the Russian Academy of Sciences. 2020, vol. 90, no. 3, pp. 332—337. DOI: 10.1134/S1019331620030065.

5. Volk H-J. Wirtgen drivers the development of surface mining. Procedia Engineering. 2016, no. 138, pp. 30—39. DOI: 10.1016/j.proeng.2016.02.049.

6. Rylnikova M. V., Schwabenland Ye. Ye. Features of quality management of ore mass in the open mining of complex structural deposits by surface miners. Mineral mining & conservation. 2019, no. 2-3, pp. 80—86. [In Russ]. DOI: 10.26121/RON.2019.48.54.012.

7. Valiev N. G., Sandrigailo I. N., Arefiev S. A., Chebotarev S. I. Evaluation of the possibility of using and opera ting modes of surface miners in the development of marble deposits. News of the Tula state university. Sciences of Earth. 2020, no. 2, pp. 88—99. [In Russ].

8. Burkhardt M., Kim E., Nelson P. P. EMI database analysis focusing on relationship between density and mechanical properties of sedimentary rocks. Geomechanics and Engineering. 2018, vol. 14, no. 5, pp. 491—498. DOI: 10.12989/gae.2018.14.5.491.

9. Ditlef A., Lima H. M., Cunha E. R., Souza F. R. A feasibility study of surface miner. Research, Society and Development. 2022, vol. 11, no. 13, article e307111335619. DOI: 10.33448/rsd-v11i13. 35619.

10. Kumar C., Kumaraswamidhas L. A., Murthy V. M. S. R., Prakash A. Experimental investigations on thermal behavior during pick-rock interaction and optimization of operating parameters of surface miner. International Journal of Rock Mechanics and Mining Sciences. 2020, vol. 133, article 104360. DOI: 10.1016/j.ijrmms.2020.104360.

11. Klement’eva I. N., Kuziev D. A. Actual status and prospects for future development of surface miners, designed for for blastless lit-by-lit excavation of solid rock. MIAB. Mining Inf. Anal. Bull. 2019, no. 2, pp. 123—128. [In Russ]. DOI: 10.25018/0236-1493-2019-02-0-123-128.

12. Ocak I., Seker S. E., Rostami J. Performance prediction of impact hammer using ensemble machine learning techniques. Tunnelling and Underground Space Technology. 2018, vol. 80, pp. 269—276. DOI: 10.1016/j.tust.2018.07.030.

13. Pikhler M., Guskov V. A., Pankevich Yu. B., Pankevich M. Yu. Wirtgen Surface Miner 2200SM combine harvester at the Kuvmogorsky limestone quarry of JSC Mikhailovsky Cement Plant. Russian Mining Industry Journal. 2006, no. 1, pp. 23—28. [In Russ].

14. Pikhler M., Pankin A. N., Filippov A. A., Pankevich Yu. B., Pankevich M. Yu. Thin-layer nonexplosive technology for the extraction of non-metallic building materials using a Wirtgen 2200SM combine at Kovrovskoye Quarry Administration OJSC. Russian Mining Industry Journal. 2011, no. 6, pp. 44-53. [In Russ].

15. Cheban A. Yu. On determination of the capacity level of surface miners under various operating conditions. Sistemy. Methods. Technologies. 2014, no. 3, pp. 145—148. [In Russ].

16. Latyshev O. G., Kornilkov M. V. Napravlennoe izmenenie fraktal'nykh kharakteristik, svoystv i sostoyaniya porod poverkhnostno-aktivnymi veshchestvami v protsessakh gornogo proizvodstva [Directed change of fractal characteristics, properties and state of rocks by surface-active substances in mining processes], Ekaterinburg, Izd-vo UGGU, 2016, 407 p.

17. Rasskazov I. Yu., Sekisov A. G., Cheban A. Yu. Enhancement of mining efficiency at structurally complex deposits with advanced extraction of very high-grade ore. MIAB. Mining Inf. Anal. Bull. 2023, no. 4, pp. 5—19. [In Russ]. DOI: 10.25018/0236_1493_2023_4_0_5.

18. Panishev S. V., Khosoev D. V., Matveev A. I. Improving the efficiency of development of overburden rocks and coals of the Elga deposit in Yakutia by softening them using surfactants. Russian Mining Industry Journal. 2021, no. 1, pp. 98—104. [In Russ]. DOI: 10.30686/1609-9192-2021-1-98-104.

19. Cheban A. Yu. Improvement of technology for the development of complex-structured fields with the application of layered milling machines. News of the Tula state university. Sciences of Earth. 2023, no. 2, pp. 357—367. [In Russ].

20. Yucong P., Quansheng L., Qi L. Full-scale linear cutting tests to check and modify a widely used semi-theoretical model for disc cutter cutting force prediction. Acta Geotechnical. 2020, vol. 15, no. 6, pp. 1481—1500. DOI: 10.1007/s11440-019-00852-4.