“Belgorkhimprom” Institute (Minsk, Republic of Belarus):

Shvab R. G., Head of Department
Zolnikov N. A., Head of Laboratory
Deshkovskiy V. N., Leading Researcher, Candidate of Engineering Sciences, e-mail: glanigo@tut.by

“Belaruskali” Company (Soligorsk, Republic of Belarus):

Zeytts V. E., Chief Surveyor
Barbikov D. V., Chief Geologist

The anthropogenic fissures were investigated in single layers of Starobin potassium salts` deposits. However, the impact degree of the potassium beds reundermining on the stress-strain state of rock strata is very important both in terms of stability of mine workings and development of anthropogenic fissures around the workings.
The mine of the “Belaruskali” JSC Mining Department was the plase, where was held the complex of scientific research studies of the geomechanical processes in the rock strata as a result of its reundermining. It was found that the high-attitude water-conducting channels are located above the boundaries of the lava goaf. Due to the undermining, there was held the evaluation of the stress and strain of rock strata and headings. In the conditions of Starobin deposit, the power of the rock strata between the developed horizons exceeds the total value of the height distribution of water bearing fissure zones and protective cieling (35 meters). 6 years later and more it were observed a slight deformations, using the reundermining with potassium lava. This operation was held after the initial rock strata undermining, using the lava from the Second potassium horizon. Third potassium horizon has a removable capacity by 1,2 meters.

1. Novokshonov V. N., Deshkovskiy V. N., Zolnikov N. A., Danilova A. F. Gornaya mekhanika i mashinostroenie — Mechanics and Mining Machinery, 2011, No. 3, pp. 2 9–36.
2. Smychnik A. D., Nivelson I. S., Deshkovsky V. N. Naturalnye issledovaniya po opredeleniyu vysoty formirovaniya zony tekhnogennykh vodoprovodyashchikh treshchin nad razrabatyvaemymi plastami Starobinskogo mestorozhdeniya kaliynykh soley Respubliki Belarus (Natural researching on evaluation of attitude formation of anthropogenic water-feeding fissures under the developed layers of Starobin potassium salts deposit of Republic of Belarus). Donetsk : Scientific works of the Ukrainian State Scientific–Research and Design Institute of Mining, Geology, Geomechanics and Mine Surveying of the National Academy of Sciences of Ukraine, 2009, pp. 92–99.
3. Pravila po zashchite rudnikov ot zatopleniya v usloviyakh Starobinskogo mestorozhdeniya (Rules for mines protection from flooding in Starobin deposit). Minsk : Promatomnadzorom, 2006, 104 p.
4. Zeitts V. E., Barbikov D. V., Zolnikov N. A. et al. Gornyi Zhurnal — Mining Journal, 2010, No. 8, pp. 23–25.
5. Zolnikov N. A., Deshkovskiy V. N., Varlamov A. V. Adaptatsiya priborov nerazrushayushchego kontrolya dlya izucheniya svoystv massiva gornykh porod v usloviyakh Starobinskogo mestorozhdeniya kaliynykh soley (Adaptation of nondestructive control devices for studying the properties of the rock strata in the conditions of the Starobin potassium salts field). Osvoenie mestorozhdeniy mineralnykh resursov i podzemnoe stroitelstvo v slozhnykh gidrogeologicheskikh usloviyakh : materialy 10-go Mezhdunarodnogo simpoziuma, 25–29 maya 2009 (Development of the fields of mineral resources and underground construction in hard hydrogeological conditions : materials of the 10th International symposium, May 25–29, 2009). Belgorod, 2009, pp. 135–140.
6. Vagin V. B. Shakhtnye seysmicheskie metody izucheniya stroeniya massivov solyanykh porod (Mining seismic methods for studing the structure of soliferous rock strata). Minsk : Belorus scientific-research center “Ekologiya”, 2010, 188 p.