DETERMINATION OF AREAS WITH HIGH STRESSES IMPACTING ON DISMANTLING DRIFT STABILITY IN A ZONE WITH WINNING OPERATIONS

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 114

UDC 622.833.5.622.016.52

Authors:

G.A. Simanovich, D.Sc. (Tech.), Professor,

V.V. Fomichov, Ph.D. (Tech.), Associate Professor

V.A. Sotskov, Doctoral Student

(SHEE “NMU”)

Abstract.

In process of a computing experiment a stress-strain state of the rock massif around the longwall was calculated at face stepwise approaching to the dismantling drift. The detected specificity of the stress-strain state in the nearby massif allows to choose proper schemes for channel supporting with taking into account impact of the approaching longwall. A constructed function of transition based on the established assumptions allowed to determine coordinates for optimal failure of the rock layers. Analytical findings of this computing experiment conducted for the conditions of the Western Donbass mines showed a possibility of their effective use for making technical decisions concerning parameters of the stress concentration zones in conditions of interdependences  between preparatory roadway and face.

Keywords:

computing experiment, coal-face work, dismantling drift

References:

1. Bondarenko, V.I., Kovalevskaya, I.А., Simanovich, G.А. and Fomichov, V.V. (2008), Metodika prognoza peremeshchenii kontura krepi vyemochnoi vyrabotki, raspolozhennoi v sloistom massive slabykh porod [Methods of the forecast displacements contour support of the excavation drift located in the layered soft rock massif], Brochure, RIK NGU, Dnepropetrovsk, Ukraine .

2. Bondarenko, V.I., Kovalevskaya, I.А., Simanovich, G.А. and Chervatyuk, V.G. (2012), Geomekhanika nagruzheniya krepi ochistnykh i podgotovitelnykh vyrabotok v sloistom massive slabykh porod [Geomechanics weighting roof support stope and development drift in the layered massif of soft rock] / In the monograph, Lizunov Pres, Dnepropetrovsk, Ukraine.

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About the authors:

Simanovich Gennagiy Anatolievich, Doctor of Technical Sciences (D.Sc.), Professor of the department of Underground mining, State higher educational establishment «National mining university» (SHEE «NMU») of Ministry of Education and Sciense of Ukraine (NMU), Dnepropetrovsk, Ukraine,

Fomichоv Vadim Vladimirovich, Candidate of Technical Sciences (Ph. D), Associate Professor of the department of Underground mining, State higher educational establishment «National mining university» (SHEE «NMU») of Ministry of Education and Sciense of Ukraine (NMU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Sotskov Vadim Aleksandrovich, Doctoral Student of the department of Underground mining, State higher educational establishment «National mining university» (SHEE «NMU») of Ministry of Education and Sciense of Ukraine (NMU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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