Open AccessResearch of The Stress-Deformed State at the “Shikhanskoe”, “Novobakalskoe”, Developed by the “Siderite” Mines
Author(s) -
S. V. Sentyabov,
R. V. Krinitsyn,
Evgeniy Ushakov
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/988/4/042029
Subject(s) - massif , rock mass classification , geology , mining engineering , stress (linguistics) , stress field , geotechnical engineering , engineering , geochemistry , structural engineering , philosophy , linguistics , finite element method
The stress state in the structural elements of development systems is formed as a function of the design parameters of mine workings, the full stress tensor, which includes gravitational-tectonic and time-varying stresses acting in the rock mass at the time of the start of research, taking into account the physical and mechanical properties of the rock massif, modulus of elasticity and additional stresses caused by a subsequent change in the stress field, caused outside the zone of influence of mining by a cyclical change in natural stresses, and in the zone of influence of the mined-out space - by a change in the secondary stress field. An assessment was made of the possibility of self-collapse of overlying rock masses near the workings of block No. 10, No. 20, No. 11, MBTs10-20, No. 21 in the conditions of its undermining by underground mining of horizons 540 m and 480 m of the Sideritovaya mine, and recommendations were developed to ensure production safety works. On the basis of mining and technical documentation of the mine, field and laboratory measurements, an analysis of the mining and geological conditions of development of the investigated deposits, an analysis of the natural stresses of the deposit was carried out, the physical and mechanical properties of rocks were studied, the calculation of the stress-strain state of the rock mass at operation of the Sideritovaya mine near the mine workings of blocks No. 10, No. 20, No. 11, MBTs10-20. An assessment was made of the current state of the stress state at the field, as well as the associated components of the natural environment, and the compliance of this state with the requirements of norms, standards and conditions for the extraction of minerals. The current, operational forecast of changes in the stress-strain state in the field and in the zone of significant influence of its development has been compiled. The presented results of the studies, which significantly increase the degree of geomechanical study of the rock massif of the Bakalskoe deposit. The main purpose of the research was to determine the parameters of the initial stresses acting in the rock mass.