Water Inflatable Rubber dam with Stable Structure
Water inflatable rubber dam is a kind of water-inflated stable tear-shaped rubber dam. Rubber dam consists of civil works, dam bag, anchor, filling drainage facilities and control system. It is made of strength canvas as reinforced framework and rubber layer which ensure tightness of the rubber layers. Compared with air inflatable rubber dam, water inflatable rubber dam is more expensive and slower to fill but more stable to provide optimal control over upstream water levels. It is fixed to concrete to create a permanent dam or floodgate. Water can spill over the top automatically without additional support or adjustment. When the flood is coming, rubber weir can completely collapse, does not have water resistance. It is usually used to retain water, adjust the water level, irrigation, generate hydro-electric power, control flood, etc.
WIRD-1: Water inflatable rubber dam fill the medium slower than air inflatable rubber dam.
WIRD-2: Water inflatable rubber dam is more expensive than air inflatable rubber dam.
WIRD-3: Water inflatable rubber dam is stable to control the upstream water level.
WIRD-4: Water inflatable rubber dam is in the shape of tear.
Specification
- Material structure: one cloth two rubber, two clothes three rubber, three clothes four rubber, etc.
- Color: blue, black, red, gray, purple, etc.
- Medium in dam: water.
- According to installation method:
- Single anchor.
- Double anchor (pillow-like dam and inclined dam).
- According to anchored method:
- Bolt anchored.
- Wedge anchored.
- Customization can be available.
| Item | Unit | Outer layer | Middle layer, inner layer | Cover rubber sheet | |
|---|---|---|---|---|---|
| Tensile strength at break | MPa | 14 | 12 | 6 | |
| Elongation at break | % | 400 | 400 | 250 | |
| Permanent deformation at break | % | 30 | 30 | 35 | |
| Hardness (shore A) | 55-65 | 50-60 | 55-65 | ||
| Brittleness temperature | °C | -30 | -30 | -30 | |
| Hot water aging (100 °C × 96 h) | Tensile strength at break | MPa | 12 | 10 | 5 |
| Elongation at break | % | 300 | 300 | 200 | |
| Hot water aging (70 °C × 96 h) | Tensile strength at break | MPa | 12 | 10 | 5 |
| Elongation at break | % | 300 | 300 | 200 | |
| Volume expansion ratio | % | 15 | 15 | 15 | |
| Ozone aging: 10000 pphm, temperature 40 °C, stretching 20%, no cracking | min | 120 | 120 | 100 | |
| Wear loss (akron) | cm3/1.61 km | 1.0 | 1.0 | 1.2 | |
| Flexibility, no cracking | Ten thousand times | 20 | 20 | 20 | |
| Code | Height (m) | Inner pressure / outer pressure | Security coefficient (k) | Bottom gaskets width (m) | Dam bag perimeter (m) |
|---|---|---|---|---|---|
| WIRDS-1 | 1.0 | 1.6 | > 8 | 1.8 | 3.70 |
| WIRDS-2 | 1.5 | 1.55 | > 8 | 2.05 | 5.40 |
| WIRDS-3 | 2.0 | 1.52 | > 8 | 3.40 | 7.10 |
| WIRDS-4 | 2.5 | 1.46 | > 8 | 4.36 | 8.80 |
| WIRDS-5 | 3.0 | 1.4 | > 8 | 5.45 | 10.70 |
| WIRDS-6 | 3.5 | 1.35 | > 8 | 6.8 | 12.70 |
| WIRDS-7 | 4.0 | 1.32 | > 8 | 7.96 | 14.65 |
| WIRDS-8 | 4.5 | 1.3 | > 8 | 9.15 | 16.50 |
| WIRDS-9 | 5.0 | 1.25 | > 8 | 11.1 | 19.08 |
| WIRDS-10 | 5.5 | 1.25 | > 8 | 12.13 | 20.90 |
| WIRDS-11 | 6.0 | 1.25 | > 8 | 13.27 | 22.80 |
WIRD-5: Water inflatable rubber dam needs wide concrete foundation.
WIRD-6: Water inflatable rubber dam can withstand overflow 50% in height.
WIRD-7: Water inflatable rubber dam is deflated slower than air inflatable rubber dam.
WIRD-8: Water inflatable rubber dam can save many materials than conventional sluice dam.
Feature
- It is more expensive, slower to fill, but more stable to control over upstream water level than air inflatable rubber dam.
- Tear-shaped rubber dam is on the wide concrete still.
- It can withstand overflow 50% in height.
- It can operate without electric power.
- Outer rubber is thick, is resistant to wear, sunlight, heat, ozone, aging, etc.
- Middle layer rubber can protect canvas and connect canvas.
- Inner rubber has high airtight and watertight, is resistant to aging of canvas.
- Inflating and deflating time of water inflatable rubber dam is longer than air inflatable rubber dam.
- Inflating water stably, dam bag is heavy which can decrease vibration.
- Water inflatable rubber dam is high volume low pressure system, so high pressure compressors are not needed.
- Compared with conventional sluice dam, investment of water inflatable rubber dam reduced by 30-70%, wood saved by over 60%, steel saved by 30-50%, concrete saved by 50%.
- It is resistant to shock, rust, foundation deformation, also has good sealing effect, perfect seismic performance, completely collapse capability and no water resistance.
- Various colors and beautiful styles can create landscape and beautify the environment.
- Inflating or deflating can be controlled by pumps or compressors which are controlled by automatic computer control.
- Simple construction and installation on new or existing foundation.
- Maintenance cost of water inflatable rubber dam is low.
- Construction period is short, only need 3-15 days.
- The service life span of water inflatable rubber dam usually is up to 15-25 years.
WIRD-9: Water inflatable rubber dam is resistant to shock.
WIRD-10: Blue water inflatable rubber dam can be resistant to rust.
WIRD-11: Water inflatable rubber dam is resistant to foundation deformation.
WIRD-12: Water inflatable rubber dam has good sealing effect.
Application
- Retain water.
- Adjust the water level.
- Irrigation.
- Generate hydro-electric power.
- Control flood.
- Tidal barriers.
- Control water.
- Develop water entertainment and tourism.
- Shipping.
- Increase reservoir capacity.
- Industrial and agricultural production.
- Ecological protection.
WIRD-13: Water inflatable rubber dam has good perfect seismic performance.
WIRD-14: Water inflatable rubber dam has various colors.
WIRD-15: Water inflatable rubber dam is easy to install.
WIRD-16: Complete collapsed water inflatable rubber dam have no resistance to water.
