FIELD: mining.
SUBSTANCE: method consists in forcing spherical oppositely directed loading elements (spherical indenters) into a sample until it breaks along a plane passing through a loading axis, and measurement of the area of broken surfaces and damaged rock zones in areas of contact with both spherical indenters. A formula is proposed to calculate the Poisson ratio, taking into account the areas of the broken surface and a larger zone of damaged rock. The method realisation considerably reduces labour intensiveness of tests and simplifies identification of the Poisson ratio of rocks.
EFFECT: using samples of irregular shape with unfinished surfaces.
1 tbl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DETERMINATION OF ROCK SPECIMEN MECHANICAL PROPERTIES | 2013 |
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| METHOD FOR DETERMINING ULTIMATE STRENGTH AT UNIAXIAL TENSION OF MINE ROCKS | 2010 |
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RU2676046C1 |
| METHOD FOR DETERMINING RESIDUAL STRENGTH OF ROCKS | 2018 |
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| METHOD FOR DETERMINING GEOMECHANICS PARAMETERS OF ROCKS | 2017 |
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RU2655279C1 |
| DEVICE FOR COMPRESSION TESTING OF ROCK SPECIMEN | 1992 |
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| METHOD FOR DETERMINING THE STRENGTH PROPERTIES OF ROCKS BASED ON THE RESULTS OF THE SLUDGE TESTS | 2022 |
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| DEVICE FOR TESTING ROCK SAMPLES FOR COMPRESSION | 2019 |
|
RU2714860C1 |
| METHOD FOR DETERMINATION OF STRENGTH OF CARBON SUBSTANCE | 2021 |
|
RU2790335C1 |
| METHOD FOR DETERMINATION OF POISSON COEFFICIENT OF MINE ROCKS | 2007 |
|
RU2350922C1 |
