| d |
32-38 mm |
| 1 1/4"-1 1/2" |
| L |
25-30 cm |
| 10"-1' |
| D |
Around Wall Thickness |
Symbol
Key
Crack width of the front row is
opened much larger than that of the behind rows.
Square Arrangement
|
 |
(2) Avoid diagonal crack
| d |
32-38 mm |
|
25 mm |
32-38 mm |
| 1 1/4"-1 1/2" |
|
1" |
1 1/4"-1 1/2" |
| L |
25-30 cm |
|
10 cm |
10-15 cm |
| 10"-1' |
|
4" |
4"-6" |
Symbol
Key
The curvature at corner (R)
should be more than 15 cm (6').
|
 |
|
(3) Splitting of Wall
| d |
38-44 mm |
| 1 1/4"-1 1/2" |
| L |
25-30 cm |
| 10"-1' |
Symbol
Key
|
 |
(4) Splitting of Slab
| d |
38-44 mm |
| 1 1/2"-1 3/4" |
| L |
25-30 cm |
| 10"-1' |
Symbol
Key
|
 |
| |
 |
(5) Establishment of free
surfaces
| d |
38-44 mm |
| 1 1/2"-1 3/4" |
| L |
25-30 cm |
| 10"-1' |
Symbol
Key
In stead of Burn Cut (chapter 6 of Rock),
cross drilling may be used to establish the free surface for
wall case. |
 |
