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S-3.1.01, r. 1 - Dam Safety Regulation
Schedule
Disposition versions
SCHEDULE II
(s. 13)
CONSTANT PHYSICAL PARAMETERS
(Dam vulnerability numerical values)
| Dam height | ||
| Height (m) | Points | |
| ≤5 | 1 | |
| 10 | 2 | |
| 20 | 3.5 | The points for intermediate heights shall be determined by considering that the points vary linearly between the various height values, except a dam 5 m or lower, which is always assigned 1 point. |
| 30 | 4.5 | |
| 40 | 5.0 | |
| 50 | 5.8 | |
| 100 | 8.0 | |
| 160 or more | 10.0 | |
| Dam types | ||
| Dam Type | Points | |
| Concrete arch | 1 | |
| Concrete buttresses | 3 | |
| Concrete gravity | 2 | |
| Concrete gravity embankment | 3 | For any other type of dam, an equivalence with the dam type in the table with the closest characteristics shall be established. |
| Concrete or steel sheet-pile barrier upstream of an earthfill dam | 6 | |
| Earthfill | 10 | |
| Earth-filled timber or steel sheet-pile cribs | 10 | |
| Free weir - concrete shield | 7 | |
| Rockfill dam with | ||
| - concrete facing | 3 | |
| - upstream earthfilled core | ||
| Rockfill free weir | 8 | |
| Rockfill weir | 4 | |
| Rockfill - zoned (core) | 3 | |
| Rockfill - zoned Impervious core | 3 | |
| Steel sheet-piling | 7 | |
| Stone-filled timber or steel sheet-pile cribs | 6 | |
| Timber buttresses (cribs) | 8 | |
| Timber buttresses (dead shores) | 9 | |
| Impounding capacity | ||
| Capacity (106 m3) | Points | |
| ≤1 | 1 | |
| 50 | 3 | The points for intermediate capacities shall be determined by considering that the points vary linearly between the various values of impounding capacity, except an impounding capacity of 1,000,000 m3 or less, which is always assigned 1 point. |
| 1,000 | 5 | |
| 2,000 | 6.5 | |
| 5,000 | 8 | |
| 6,000 and over | 10 | |
| Foundation types | ||
| Type | Points | |
| Treated rock | 1 | |
| Rock | 2 | |
| Core on treated rock | 3 | The treatment includes all the geotechnical methods meant to reduce the permeability of the foundation and increase its resistance to internal erosion or to increase the bearing capacity of the foundation or the stability of the dam. |
| Treated till | 3 | |
| Core on rock | 4 | |
| Till | 4 | |
| Core on till | 5 | |
| Treated clay | 6 | Till is a material of glacial origin consisting of a mixture of varying particle sizes that usually contains a certain percentage of fines. |
| Clay | 7 | |
| Treated alluvial deposits | 8 | |
| Core on clay | 8 | |
| Alluvial or unknown deposits | 10 | |
SCHEDULE II
(s. 13)
CONSTANT PHYSICAL PARAMETERS
(Dam vulnerability numerical values)
Dam height
__________________________
Height (m) Points
__________________________
≤5 1
__________________________
10 2
__________________________
20 3.5 The points for intermediate heights shall be
__________________________ determined by considering that the points vary
linearly between the various height values, except
30 4.5 a dam 5 m or lower, which is always assigned
__________________________ 1 point.
40 5.0
__________________________
50 5.8
__________________________
100 8.0
__________________________
160 or more 10.0
__________________________
Dam types
__________________________________________
Dam Type Points
__________________________________________
Concrete arch 1
__________________________________________
Concrete buttresses 3
__________________________________________
Concrete gravity 2
__________________________________________
Concrete gravity embankment 3 For any other type of dam, an
__________________________________________ equivalence with the dam type in
the table with the closest
Concrete or steel sheet-pile characteristics shall be
barrier upstream of an established.
earthfill dam 6
__________________________________________
Earthfill 10
__________________________________________
Earth-filled timber or
steel sheet-pile cribs 10
__________________________________________
Free weir - concrete shield 7
__________________________________________
Rockfill dam with
- concrete facing
- upstream earthfilled core 3
__________________________________________
Rockfill free weir 8
__________________________________________
Rockfill weir 4
__________________________________________
Steel sheet-piling 7
__________________________________________
Stone-filled timber or
steel sheet-pile cribs 6
__________________________________________
Timber buttresses (cribs) 8
__________________________________________
Timber buttresses
(dead shores) 9
__________________________________________
Impounding capacity
____________________________
Capacity Points
(106 m3)
____________________________
≤1 1
____________________________
The points for intermediate capacities shall be
50 3 determined by considering that the points vary
____________________________ linearly between the various values of impounding
capacity, except an impounding capacity of
1,000 5 1,000,000 m3 or less, which is always assigned
____________________________ 1 point.
2,000 6.5
____________________________
5,000 8
____________________________
6 000 and over 10
____________________________
Foundation types
_________________________________
Type Points
_________________________________
Treated rock 1
_________________________________
Rock 2
_________________________________ The treatment includes all the geotechnical
methods meant to reduce the permeability of
Treated till 3 the foundation and increase its resistance
_________________________________ to internal erosion or to increase the
bearing capacity of the foundation or the
Till 4 stability of the dam.
_________________________________
Treated clay 6
_________________________________ Till is a material of glacial origin
consisting of a mixture of varying particle
Clay 7 sizes that usually contains a certain
_________________________________ percentage of fines.
Treated alluvial
deposits 8
_________________________________
Alluvial or
unknown deposits 10
_________________________________
