FIELD: construction industry. SUBSTANCE: according to method, contour line is marked on stone mother bank over line of stone block to be separated from bank. Then, drilling rig is positioned over preset axes of blast-holes, blast-holes are drilled, stone blocks are separated. Drilling is effected by drilling rig with non-rotating rod and bit of rhombic configuration which is oriented by its long diagonal over contour line of block. EFFECT: high efficiency. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILLING BIT | 1996 |
|
RU2105123C1 |
| DRILL CROWN FOR CHURN DRILLING | 1993 |
|
RU2065022C1 |
| DRILLING RIG FOR IN-LINE DRILLING OF BLAST-HOLES | 1997 |
|
RU2130545C1 |
| PERCUSSIVE BORING MACHINE | 1993 |
|
RU2090753C1 |
| DRILLING BIT | 1994 |
|
RU2083793C1 |
| DRILLING MANIPULATOR | 1994 |
|
RU2083820C1 |
| DRILL BIT | 1992 |
|
RU2080447C1 |
| HARD-ALLOY INSERT FOR DRILL BITS | 1995 |
|
RU2090735C1 |
| DETACHABLE ECCENTRIC JOINT | 1994 |
|
RU2108493C1 |
| DETACHABLE WEDGING JOINT | 1996 |
|
RU2099610C1 |
