FIELD: mining industry. SUBSTANCE: method for quarrying of block stones includes filling of blast holes with nonexplosive breaking substance and leaving free space in hole mouth at height equalling 0.10-0.15 m, and locking device is placed into free space and made in form of two spatial bodies each of which is made in form of part of round cylinder whose one base is formed by plane located at angle of 7-9 deg. to longitudinal axis. EFFECT: higher efficiency.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ROCK NON-EXPLOSIVE CRUSHING AND DEVICE TO THIS END | 2015 |
|
RU2574088C1 |
| METHOD FOR PROTECTION OF DEVELOPMENT WORKINGS | 0 |
|
SU1820002A1 |
| METHOD OF SIMULATING OUTBURST OF GAS/WATER/COAL MIXTURE IN COAL EXCAVATION | 0 |
|
SU1357571A1 |
| METHOD FOR BREAKING SOLID BODIES AND DEVICE FOR ITS REALIZATION | 1992 |
|
RU2039252C1 |
| METHOD OF PREVENTION OF ROCK AND GAS OUTBURSTS IN DRIVING OPENINGS | 0 |
|
SU1701938A1 |
| METHOD FOR COAL RECOVERY | 0 |
|
SU1634785A1 |
| METHOD OF CONCRETION DISINTEGRATION | 0 |
|
SU1711846A1 |
| METHOD OF PREVENTING SUDDEN COAL AND GAS OUTBURSTS | 0 |
|
SU1421882A1 |
| METHOD FOR SPLITTING STONE BLOCKS | 0 |
|
SU1800023A1 |
| METHOD OF FILLING BLASTHOLES WITH NON-EXPLOSIVE ROCK-BREAKING COMPOSITIONS | 0 |
|
SU1640411A1 |
