SEMI-EMPIRICAL FORMULAS FOR DETERMINING THE MODULUS OF DEFORMATION AND MODULUS RECESSION OF ROCK MASSIVE

The analysis of existing methods for determining the modulus of deformation and modulus of rock mass decay. Proposed two semi-empirical formulas for determining the modulus of deformation. Also proposed semi-empirical formula for the modulus of the rock mass decline. The second module to determine the dependence of the strain produced by the method of least squares. To obtain laboratory tests were used, obtained under the guidance Ruppeneyta. The dependence of the module fall of the rock mass was determined using an array of deformation modulus, internal friction angle, Poisson’s ratio. An example of the calculation of semi-empirical relationships obtained for the conditions of one of the mine workings Novoshirokinskoye. As a result of the calculation is concluded that the recession fractured module array is substantially different from the laboratory module downturn downward. The necessity of introduction of correction factors in the final method of calculating the overburden pressure, and the correction factors are dependent on the method of calculation modules received deformation and decay of the array. The first formula to determine the deformation of the module array and the formula for the module downturn successfully been tested in a semi-empirical method of calculation of rock pressure, suggested by the authors.


Keywords

Laboratory module deformation, deformation module of rock massive, laboratory modules recession, module recession of rock massive, semi-empirical formula, inelastic area, rock pressure.

Issue number: 11
Year: 2016
ISBN:
UDK: 622.02
DOI:
Authors: Nemchin N. P., Terentyev P. Yu.

About authors: Nemchin N.P., Candidate of Technical Sciences, Assistant Professor, e-mail: nemchinnp@mail.ru, Terentyev P.Yu., Graduate Student, e-mail: stalkertok@gmail.com, Transbaikal State University, 672039, Chita, Russia.

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