Alteration of initial stress state in the north area of the Sokolov deposit in the course of mining

The stress–strain behavior of rocks is one of the major factors which govern the value and nature of strata pressure, while the latter in many ways determines the safety and efficiency of underground mineral mining. The subject of the research is the stress–strain behavior of rock mass in the north of the Sokolov deposit developed by the underground method. The aim of the research is to study the change in the stress–strain behavior in the north area of the Sokolov deposit in the course of mining. The methods of the research involve the analysis of the stress–strain behavior measured instrumentally using the borehole slotter technique and the comparison of the data with the instrumental measurements of acoustic emission by GS-01 device. The analysis yields that mined-out space has influence on the stress–strain behavior of rocks, while the effective loads across the orebody strike beyond the influence zone of the mined-out area remain yet high and approach the initial values.

Mengel D.A. Alteration of initial stress state in the north area of the Sokolov deposit in the course of mining. MIAB. Mining Inf. Anal. Bull. 2020;(3-1):138-148. [In Russ]. DOI: 10.25018/0236-1493-2020-31-0-138-148.

Mengel’ D.А., engineer-technologist of the geomechanics service of the Joint-Stock Company Sokolovsko-Sarbayskoye Mining and Processing Production Association, Republic of Kazakhstan, 111500, Rudny, pr. Lenina, 26, е-mail: mengel.denis@mail.ru.

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