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- Inflatable_rubber_dam abstract "Inflatable rubber dams are cylindrical rubber fabrics placed across channels, streams and weir or dam crests to raise the upstream water level when inflated. The membrane is a multi-layer fabric made of synthetic fibre (usually nylon)and rubberised on one or both sides. The fabric is quite flexible and yet exhibits good wear-resistance characteristics. A layer of stainless steel mesh or ceramic chips can be embedded in the surface layer to reduce or prevent vandal damage.The inflatable flexible membrane dams (IFMD, or rubber dams) were developed in the early 1950s - Flexidam - Imbertson. They are installed in stream and river beds, generally being bolted into a concrete foundation. They are used to divert water for irrigation, temporarily raising existing dams, flood control, water retention for aquifer recharge, reducing or preventing salt water intrusion into fresh water areas, protect low-lying coastal areas from tidal flooding, enabling fish passage past diversion works, by deflation, and for sewage retention/separation during flood events. Inflatable dams can be filled with water, air or both. They are low pressure - typically 4 to 10 psi. The present trend suggests an increased use of air-filled membranes because they can be deflated or inflated more rapidly, and they are little affected by freezing conditions. Characteristic dimensions cover typically lengths of about 100 m with specially-made membranes up to 200-m wide, dam heights usually less than 5-m but some special designs might be up to 10-m high. The membrane is usually deflated for large overflows. It is however common practice to allow small spillages over the inflated dam. During overflows greater than 20% over-topping, vibrations might result from fluid-structure interactions, and the instabilities might damage or destroy the rubber membrane. Several failures were experienced (e.g. CHANSON 1996). In practice, a deflector (i.e. fin) is installed on the downstream face of the rubber dam to project the nappe away from the membrane, hence preventing rubber membrane vibrations.There are more than 2000 inflatable rubber dams around the world. Durability can be excellent: recently, a 35 year old dam in eastern Ontario, Canada was replaced, and while still functional in both freezing winter conditions when it was air filled, and water filled in summer, it was deemed to have served its useful life, and was replaced.".
- Inflatable_rubber_dam wikiPageExternalLink view.php?pid=UQ:9257.
- Inflatable_rubber_dam wikiPageExternalLink UQ:9331.
- Inflatable_rubber_dam wikiPageExternalLink www.huachenrubber.com.
- Inflatable_rubber_dam wikiPageExternalLink www.rubberdam.cn.
- Inflatable_rubber_dam wikiPageID "21239302".
- Inflatable_rubber_dam wikiPageRevisionID "570326714".
- Inflatable_rubber_dam hasPhotoCollection Inflatable_rubber_dam.
- Inflatable_rubber_dam subject Category:Dams_by_type.
- Inflatable_rubber_dam type Artifact100021939.
- Inflatable_rubber_dam type Barrier102796623.
- Inflatable_rubber_dam type Dam103160309.
- Inflatable_rubber_dam type Dams.
- Inflatable_rubber_dam type Object100002684.
- Inflatable_rubber_dam type Obstruction103839993.
- Inflatable_rubber_dam type PhysicalEntity100001930.
- Inflatable_rubber_dam type Structure104341686.
- Inflatable_rubber_dam type Whole100003553.
- Inflatable_rubber_dam type YagoGeoEntity.
- Inflatable_rubber_dam type YagoPermanentlyLocatedEntity.
- Inflatable_rubber_dam comment "Inflatable rubber dams are cylindrical rubber fabrics placed across channels, streams and weir or dam crests to raise the upstream water level when inflated. The membrane is a multi-layer fabric made of synthetic fibre (usually nylon)and rubberised on one or both sides. The fabric is quite flexible and yet exhibits good wear-resistance characteristics.".
- Inflatable_rubber_dam label "Balgstuw".
- Inflatable_rubber_dam label "Inflatable rubber dam".
- Inflatable_rubber_dam label "Presa hinchable".
- Inflatable_rubber_dam label "Schlauchwehr".
- Inflatable_rubber_dam label "ゴム引布製起伏堰".
- Inflatable_rubber_dam sameAs Schlauchwehr.
- Inflatable_rubber_dam sameAs Presa_hinchable.
- Inflatable_rubber_dam sameAs ゴム引布製起伏堰.
- Inflatable_rubber_dam sameAs 고무댐.
- Inflatable_rubber_dam sameAs Balgstuw.
- Inflatable_rubber_dam sameAs m.05c1778.
- Inflatable_rubber_dam sameAs Q1137413.
- Inflatable_rubber_dam sameAs Q1137413.
- Inflatable_rubber_dam sameAs Inflatable_rubber_dam.
- Inflatable_rubber_dam wasDerivedFrom Inflatable_rubber_dam?oldid=570326714.
- Inflatable_rubber_dam isPrimaryTopicOf Inflatable_rubber_dam.