Rock failure mechanisms in the surrounding rock masses with deep level tunnels and in the source areas of disastrous events

Nazarova L.A., Usol’tseva O.M., Semenov V.N., Tsoi P.A., Nazarov L.A.

LARISA A. NAZAROVA, Doctor of Physico-Mathematical Sciences, Head of Division (Institute of Mining SB RAS, Novosibirsk), е-mail: lanazarova@ngs.ru;
OLGA M. USOL’TSEVA, Candidate of Physico-Mathematical Sciences, Lab Chief (Institute of Mining SB RAS, Novosibirsk), e-mail: usoltseva57@mail.ru;
VLADIMIR N. SEMENOV, Main Specialist (Institute of Mining SB RAS, Novosibirsk), е-mail: paveltsoy@mail.ru;
PAVEL A. TSOI, Candidate of Physico-Mathematical Sciences, Scientific Associate (Institute of Mining SB RAS, Novosibirsk), e-mail: paveltsoy@mail.ru.
LEONID A. NAZAROV, Doctor of Physico-Mathematical Sciences, Lab Chief (Institute of Mining SB RAS, Novosibirsk), e-mail: mining1957@mail.ru.

Estimation of deformation and strength parametres of geomaterials based on the properties of their composite elements

The paper presents the results of experimental research into the deformation and strength properties of samples manufactured using artificial geomaterials with the assigned structural parameters. The aim of the research was to find mechanisms of change in the deformation and strength parametres according to the type of loading and the structure of a material.

Key words: lab testing, sample, artificial geomaterials, biaxial loading, deformation, fracturing, strength descriptor.

REFERENCES

1.      State Standard 21153.2-84. Rocks. Methods for determining the ultimate strength under uniaxial compression, 8 p. [GOST 21153.2-84 Porody gornye. Metody opredelenija predela prochnosti pri odnoosnom szhatii. 8 s.].

2.      State Standard 21153.3-85. Rocks. Methods for determination of tensile strength in uniaxial tension, 18 p. [GOST 21153.3-85 Porody gornye. Metody opredelenija predela prochnosti pri odnoosnom rastjazhenii. 18 s.].

3.      State Standard 21153.8-88. Rocks. Methods for determining the ultimate strength under triaxial compression. [GOST 21153.8-88 Porody gornye. Metody opredelenija predela prochnosti pri ob’jomnom szhatii. 17 s.].

4.      State Standard 28985-91. Rocks. Methods for determining deformation characteristics under uniaxial compression, 11 p. [GOST 28985-91 Porody gornye. Metody opredelenija deformacionnyh harakteristik pri odnoosnom szhatii. 11 s.].

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