Open AccessCRITERIA EVALUATION OF THE LIMIT DEPTH OF HORIZONTAL PRODUCTION
Author(s) -
Оксана Богомолова,
Александр Богомолов
Publication year - 2019
Publication title -
stroitelʹstvo i arhitektura
Language(s) - English
Resource type - Journals
eISSN - 2500-1477
pISSN - 2308-0191
DOI - 10.29039/2308-0191-2019-7-4-41-48
Subject(s) - limiting , limit (mathematics) , section (typography) , fracture (geology) , ultimate tensile strength , stress (linguistics) , production (economics) , structural engineering , geotechnical engineering , mathematics , geometry , geology , mechanics , engineering , computer science , mathematical analysis , materials science , mechanical engineering , physics , composite material , linguistics , philosophy , economics , macroeconomics , operating system
The paper presents the results of a study to determine the technological contours of horizontal underground workings and the maximum safe depth of their laying. The criterion for determining the limiting depth can be the condition that there are no points on the output circuit at which the stresses the tangential normal stress exceeds the tensile and compressive strengths of the host rock. The results of solving the problem of finding fracture zones on a circular cross-section working circuit are in satisfactory qualitative agreement with the result obtained independently of the authors.