Design of yielding support systems in salts

Construction of deep mines in salts is complicated by the fact that the excavation boundary deforms constantly during the whole operational period. The deformations of the mine boundary also decrease as the size of the excavation decreases. The most complicated case is a large deep excavation in salts because the expected deformations are more than 1 m. Conventional support cannot ensure the workability of the excavation because the stresses acting in the support are much higher than the strength of the support material. It is necessary to develop a special yielding support, that can withstand the load during the entire service life of the excavation. The design of yielding support for a large deep excavation in salts is given.

Dementyeva A. V., Karasev M. A. Design of yielding support systems in salts. MIAB. Mining Inf. Anal. Bull. 2022;(10-1):136—144. [In Russ]. DOI: 10.25018/0236_1493_2022_101_ 0_136.

Dementyeva A. V.¹, Student, e-mail: dementyeva_av@mail.ru, ORCID ID: 0000-00026484-2405;
Karasev M. A.¹, Dr. Sci. (Eng.), Professor, Associated Professor, e-mail: Karasev_MA@ pers.spmi.ru, ORCID ID: 0000-0001-8939-0807;
¹ Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

Dementyeva A. V., e-mail: dementyeva_av@mail.ru.

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