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Scientific, Technological and Production Journal
ISSN 2079–3332 (print)
ISSN 3034-6835 (online)
founded in 2001

Determination of boundary angles of the process of earth's surface displacement during the mining of reserves of the Verkhnekamskoe deposit of potassiummagnesium salts

Original articles: 2024 No 6

Determination of boundary angles of the process of earth's surface displacement during the mining of reserves of the Verkhnekamskoe deposit of potassiummagnesium salts

DOI: 10.56195/20793332_2024_6_25_32

Read in pdf Y. S. Shchegolkov
  1. PJSC «Uralkali», Berezniki, Russian Federation
p. 25-32, No.6/2024
Abstract:
The study of the displacement process is undoubtedly relevant for ensuring the safety of undermining of buildings and structures on the earth’s surface, as well as when planning construction in undermining areas. Of particular importance when assigning protection measures is the determination of expected deformations of the earth’s surface, the location and numerical value of which, in the absence of instrumental observations on the considered section of the mine field, are closely related to the angular parameters of the displacement process. The fixed values of boundary angles currently used in practice do not always allow for reliable calculation of the length of the displacement half-trough and, as a result, for correct calculation of the expected deformations. The article presents the results of studies aimed at finding the time dependence of changes in the values of boundary angles on the main possible influencing factors. The study revealed that the boundary angles are subject to changes mainly at the initial stage of the displacement process. A mathematical model has been established that allows determining the value of the boundary angle depending on the amount of subsidence achieved above the center of the zone adjacent to the constant boundary of the mined-out space. The results of the study may be useful in improving the regulatory framework on the topic under consideration, as well as in developing measures aimed at protecting surface objects from the harmful effects of underground mining operations.
Keywords:
angular parameters of the displacement process, boundary angles, displacement, trough, safety of the objects being processed
For citation:
Shchegolkov Y. S. Determination of boundary angles of the process of earth’s surface displacement during the mining of reserves of the Verkhnekamskoe deposit of potassium-magnesium salts. Mine Surveying and Subsurface Use. 2024;(6):25-32. (In Russ.). https://doi.org/10.56195/20793332_2024_6_25_32.
Information about the authors:
  1. Yuri S. Shchegolkov – main specialist of the analytical department of design and analytical management, PJSC «Uralkali», 618426, Berezniki, Russian Federation, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
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