FIELD: mining.
SUBSTANCE: invention is related to mining industry, namely to crib work, and may be used for reinforcement of mines in development of salina mineral deposits. Crib work includes tiers of four-support crib work elements. Additionally it is equipped with one or two tiers of pliant elements in crib work laid onto elements of rigid part in four-support crib work. Besides pliant elements are displaced to the centre of crib work, and dependence between effort of compression from mining pressure applied at one angle of crib work, and its deformation is identified from mathematical expression.
EFFECT: improved pliancy of wooden crib work by creation of beam system with redistribution of mining pressure loads at middle part of crib work elements.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR STRENGTHENING OF MINES | 2009 |
|
RU2387840C1 |
| VERTICAL SHAFT PROTECTION METHOD | 0 |
|
SU1744259A1 |
| METHOD TO SUPPORT MINES | 2012 |
|
RU2498074C1 |
| CRIB FOR PROTECTION OF STOPES | 1993 |
|
RU2079665C1 |
| METHOD OF REPAIRING MINE WORKING IN SALT DEPOSITS | 2009 |
|
RU2405111C1 |
| LOCK FOR YIELDING ROAD SUPPORT | 0 |
|
SU1770577A1 |
| 0 |
|
SU1562460A1 | |
| METHOD FOR ROOF CONTROL WITH BLOCKS ON PLIABLE SUPPORT | 1997 |
|
RU2138642C1 |
| ROOF SUPPORT FOR SAFETY OF ENTRY WORKINGS | 0 |
|
SU1064004A1 |
| 0 |
|
SU64742A1 |
