Air is used more often than water as the filling medium for the following reasons (Bridgestone, 1994):
* Water and water-borne debris can corrode and clog pipes.
* The design and construction of air-filled dams are simpler.
* Water-filled dams require a more complex piping system and often need a pond to store water for filling the dams when river water levels are low.
* The inflation and deflation time of an air-filled dam is much shorter than that of a water-filled dam of the same size.
* Due to the weight of water, the water-filled dam has a squat shape, requiring more rubber material than an air-filled dam of the same height.
* The circumference of a water-filled dam is about 4.8 times its height, compared to 3.5 times for an air-filled dam. To accommodate the dam body, the foundation of a water-filled dam must be wider than that of an air-filled dam of the same height.
However, air-filled dams are less stable and suffer more from vibration than the water-filled ones, which are more preferable when hydraulic conditions are more demanding (Markus, 1995)
摘自(世界水电杂志),请分享!
英语好的同志可以翻译一下,谢谢!
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只看楼主 我来说两句近日,安化县仙溪镇山口电站顺利建成发电。这是该镇充分利用水利资源、大力发展小水电的优势项目之一,也是目前我市建成的第一座橡胶坝水电站。该电站采用混凝土水泥基坝和橡胶坝双层坝体的新技术建成。总投资650万元,装机容量1280千瓦,坝体总长128米,年发电量550万度,年效益168万元,年创税40多万元。
橡胶坝是用四层高分子合成橡胶和三层高强度帆布合成的“大橡胶袋”,壁厚12至14毫米。造价低廉,抗压性强,牢固耐用。该电站采用的橡胶坝长98米,固定在钢筑的混凝土基坝上。蓄水时,用气泵加压把气打入橡胶袋内,使橡胶袋充气膨胀,形成橡胶坝坝体,使水位净增高1.5米,回水长度3千米,可扩大库容11万立方米。汛期泄洪时,将橡胶坝的阀门打开,把橡胶坝中的气放掉,橡胶坝自行塌陷,确保了洪水畅流。据技术人员介绍,采用橡胶坝技术比使用普通的混凝土坝可减少投资60万元左右。而且在防汛抗洪时,调控和操作更加灵活、便捷,可大大提高整个大坝的安全系数。
该项目由青岛碧海环保技术有限公司设计、生产制作并完成最终的安装调试工作。
碧海环保——充气橡胶坝的制造专家
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* Water and water-borne debris can corrode and clog pipes.
* The design and construction of air-filled dams are simpler.
* Water-filled dams require a more complex piping system and often need a pond to store water for filling the dams when river water levels are low.
* The inflation and deflation time of an air-filled dam is much shorter than that of a water-filled dam of the same size.
* Due to the weight of water, the water-filled dam has a squat shape, requiring more rubber material than an air-filled dam of the same height.
* The circumference of a water-filled dam is about 4.8 times its height, compared to 3.5 times for an air-filled dam. To accommodate the dam body, the foundation of a water-filled dam must be wider than that of an air-filled dam of the same height.
However, air-filled dams are less stable and suffer more from vibration than the water-filled ones, which are more preferable when hydraulic conditions are more demanding (Markus, 1995)
摘自(世界水电杂志),请分享!
英语好的同志可以翻译一下,谢谢!
碧海环保——充气橡胶坝的制造专家
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