FIELD: mining industry, particularly devices for testing in situ the hardness or other properties of minerals.
SUBSTANCE: method involves determining transversal and longitudinal deformations from previously measured vertical and horizontal displacements. Transversal strain coefficient and stress-strain modulus are determined by previously measured horizontal and vertical displacements of reference marks built in roof and ground, as well as in mine sides. The transversal strain coefficient and stress-strain modulus are determined from mathematical equations. One reference mark pair is used for vertical displacement determination, another one is utilized for horizontal displacement measuring. Volumetric rock weight above mine is determined as weighted average value.
EFFECT: increased reliability of strain characteristics determination.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ESTIMATING DRIFT DEFORMATIONS | 0 |
|
SU1763652A1 |
| METHOD OF DETERMINING PHYSICAL AND MECHANICAL PROPERTIES AND STRESSED STATE OF ROCK MASSIF | 0 |
|
SU1573172A1 |
| METHOD OF DETERMINING DEFORMATION MODULUS OF ROCK MASS | 0 |
|
SU1411470A1 |
| METHOD OF SECURING MINE WORKINGS | 0 |
|
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| METHOD OF DETERMINING THE JOINTING OF ROCK AROUND MINE WORKINGS | 0 |
|
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|
SU1084442A1 |
| METHOD OF DRIVING AND SUPPORTING MINE WORKINGS | 0 |
|
SU1514945A1 |
| METHOD OF DETERMINING INTERNAL FRICTION ANGLE OF ROCK | 0 |
|
SU1328516A1 |
| EVALUATION OF STRUCTURALLY DEFORMED AND ROCK-BUMP ROCK MASSES | 2014 |
|
RU2566885C1 |
| ROCK MASSIF MOVEMENT REGISTRATION MARK | 2004 |
|
RU2272134C1 |
