Air Inflatable Rubber Dam with Excellent Seal Ability
Air inflatable rubber dam, a long tubular-shaped fabric, is a novel hydraulic building presented by the development of macromolecular synthetic material industry. It consists of high strength canvas as the reinforced framework and synthetic rubber, is fixed to a reinforced concrete foundation using clamping plates and anchor bolts. In dry seasons, the rubber dam is inflated by air to retain water for industrial, agricultural and living water demands; in rainy seasons, the air in the sealed bag can be deflated out to release floodwater from river course. Its cost is lower than water inflatable rubber dam and traditional dam. It can be installed in 3 to 15 days and be put into use soon. Medium will not freeze in winter. It is usually used for retain water, irrigation, control flood, power generation, etc.
AIRD-1: Inclined air inflatable rubber dam has excellent airtight.
AIRD-2: Air inflatable rubber dam has excellent watertight.
AIRD-3: The medium of sapphire air inflatable rubber dam is easy to get.
AIRD-4: Sky-blue air inflatable rubber dam is used to retain water in one side.
AIRD-5: Dark blue air inflatable rubber dam can operate in winter.
AIRD-6: Black air inflatable rubber dam can be inflated or deflated quickly.
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: air.
- 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.
Rubber Dam Structure
AIRD-7: Inflatable rubber dam can with protective layer or not, and the cloths can increase the strength of dam.
AIRD-8: Two cloth three rubber rubberized fabric.
AIRD-9: Three cloth four rubber rubberized fabric.
AIRD-10 Three cloth four rubber rubberized fabric with one protective layer.
AIRD-11: Four cloth five rubber rubberized fabric with one protective layer.
| 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 | Perimeter (m) | Width of rubber sheet (m) | Coefficient (k) |
|---|---|---|---|---|---|
| AIRDS-1 | 1.0 | 1.60 | 3.19 | 1.30 | > 6 |
| AIRDS-2 | 1.0 | 1.10 | 3.45 | 0.57 | > 8 |
| AIRDS-3 | 1.0 | 1.00 | 2.88 | 0.60 | > 8 |
| AIRDS-4 | 1.5 | 1.50 | 4.88 | 2.15 | > 6 |
| AIRDS-5 | 1.5 | 1.10 | 5.17 | 0.85 | > 8 |
| AIRDS-6 | 1.5 | 1.00 | 4.32 | 0.90 | > 8 |
| AIRDS-7 | 2.0 | 1.50 | 6.51 | 2.87 | > 6 |
| AIRDS-8 | 2.0 | 1.00 | 5.76 | 1.20 | > 8 |
| AIRDS-9 | 2.0 | 0.90 | 7.05 | 1.28 | > 8 |
| AIRDS-10 | 2.5 | 1.40 | 8.40 | 4.04 | > 6 |
| AIRDS-11 | 2.5 | 1.00 | 7.20 | 1.50 | > 8 |
| AIRDS-12 | 2.5 | 0.90 | 7.22 | 1.60 | > 8 |
| AIRDS-13 | 2.5 | 0.75 | 7.27 | 1.81 | > 8 |
| AIRDS-14 | 3.0 | 1.35 | 10.30 | 5.20 | > 6 |
| AIRDS-15 | 3.0 | 0.90 | 8.66 | 1.92 | > 8 |
| AIRDS-16 | 3.0 | 0.75 | 8.73 | 2.17 | > 8 |
| AIRDS-17 | 3.5 | 1.30 | 12.35 | 6.58 | > 6 |
| AIRDS-18 | 3.5 | 0.90 | 10.11 | 2.24 | > 8 |
| AIRDS-19 | 3.5 | 0.75 | 10.18 | 2.53 | > 6 |
| AIRDS-20 | 4.0 | 1.25 | 14.62 | 8.25 | > 6 |
| AIRDS-21 | 4.0 | 0.90 | 11.55 | 2.56 | > 8 |
| AIRDS-22 | 4.0 | 0.70 | 11.69 | 3.04 | > 6 |
| AIRDS-23 | 4.5 | 1.25 | 16.45 | 9.28 | > 6 |
| AIRDS-24 | 4.5 | 0.70 | 13.15 | 3.34 | > 6 |
| AIRDS-25 | 5.0 | 1.20 | 19.18 | 11.53 | > 8 |
| AIRDS-26 | 5.0 | 0.70 | 14.61 | 3.81 | > 6 |
| AIRDS-27 | 5.5 | 1.20 | 21.10 | 12.68 | > 8 |
| AIRDS-28 | 6.0 | 1.20 | 23.02 | 13.83 | > 8 |
Feature
- Air has huge compressibility, so air inflatable rubber dam will appear recess when crest overflow, and flow is concentrated, has strong scour strength for downstream river.
- Medium in air inflatable rubber dam is available easily, does not freeze in winter.
- Air inflatable rubber dam is requested with high tightness.
- Air inflatable rubber dam can be inflated or deflated quickly by air blower, and equipment can control the height of rubber dam casually.
- It has simple structure, perfect seismic performance, completely collapse capability and no water resistance.
- It can resistant to sharp objects, pieces of ice, stone and vibrations caused by river overflowing.
- It can easily adapt to potential differential settlement of the foundation.
- It is high volume /low pressure system, so high pressure compressors are not needed.
- Maximum overflow can higher 20% than rubber dam.
- The outer rubber layer has excellent weathering, aging, abrasion, sunlight, UV, heat and ozone resistance.
- The middle rubber layer is used for protection of canvas and for connection of two or more canvas with rubber layers.
- The inner layer is used for protection of canvas and has excellent watertight and airtight.
- The canvas has great flexural stress and adhesion function.
- Air inflatable rubber dam can be installed on any channel cross section shape, and can seal well, without leakage.
- Investment of air inflatable rubber dam is lower than water inflatable rubber dam.
- It has short construction time, installation only need 3 to 15 days.
- The service life span of air inflatable rubber dam is up to 15 years, and it is maintenance free, does not have moving parts and painting.
AIRD-12: Black air inflatable rubber dam has smooth surface.
AIRD-13: Light blue air inflatable rubber dam can control flood.
Application
- Retain water.
- Divert water for irrigation.
- Create pondage.
- Control flood.
- Control water.
- Erosion control.
- Tidal barriers.
- Raise existing dams.
- Develop water entertainment and tourism.
- Power generation.
- Urban landscaping.
- Groundwater recharge.
- Sewage treatment.
AIRD-14: Red air inflatable rubber dam can be used in long span river.
AIRD-15: Black air inflatable rubber dam can remain the water in the upstream.
AIRD-16: Beautiful piers above the blue air inflatable rubber dam can protect the dam bag.
AIRD-17: Complete collapsed air inflatable rubber dam have no resistance to water.
