Bookend rubber dam, also named as spine type rubber dam, has obvious fins on the dam body to form a rising angle when the dam is inflated. It is made of high strength canvas as the reinforced framework and synthetic rubber fixed to a reinforced concrete foundation using clamping plates and anchor bolts. In dry seasons, the rubber dam is inflated by air or water to retain water for industrial, agricultural and living water demands; in rainy seasons, the air or water in the sealed bag can be deflated out to release floodwater from river course. Bookend rubber dam heightens overflow's water head and eliminates vacuum underneath the dam to reduce the vibration and abrasion. It is usually used to retain water, agricultural irrigation, generate electricity, control flood, beautify environment, etc.
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 or 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.
Feature
It can be resistant to vibration, abrasion, dirt, sediment, sedimentation, sunlight, heat, ozone.
It has smooth surface with spines, can eliminate vacuum underneath the dam, can create a beautiful scene of waterfall.
Automatic inflation and deflation system provides the dam excellent control of height and air pressure.
Vulcanization molding one time, increase the lateral tension of dam bag.
Long rubber dam does not need piers to firm which is not like concrete dam.
The flip bucket can separate various sharp substances from dam body to protect rubber dam and reduce dam body attrition.
In frost area, air inflatable rubber dam has no problem, water inflatable rubber dam is not suitable.
Air inflatable rubber dam asks for high demand on inflatable proof; water inflatable rubber dam asks for lower requirement on this aspect.
Incline rubber dam produces and installs conveniently which economizes the material and can solve collapse problem of pillow rubber dam.
In the process of installation, incline rubber dam can achieve mechanization, economize labor resource.
Under the same material of dam bag, incline rubber dam is higher than pillow rubber dam on safety factor.
It has short construction time, installation only need 3 to 15 days. It can be installed on new or existing foundation.
Easy to install with the help of clamping plates and anchor bolts.
Project cost is lower than conventional sluice dam: saving 30% to 70% cement, steel and wood comparing to concrete dam.
It has long service life, simple maintenance.
Application
Water retention.
Agricultural irrigation.
Electricity generating.
Reservoir capacity enlargement.
Flood control.
Beautify environment.
Anti-tide.
Urban landscaping.
Create pondage.
Raise existing dams.
Erosion control.
Groundwater recharge.
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