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沙坝

586 bytes removed, 12:56, 20 September 2015
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Brikke和Bredero在著作''[http://www.washdoc.info/docsearch/title/117705 Linking technology choice with operation and maintenance in the context of community water supply and sanitation: A reference document for planners and project staff]'' 中,推荐如下图表中的运行与维护工作:中,推荐下列图表中的运行与维护工作:
[[File:SandDam_OM.jpg|none|600px|]]
====预计使用寿命====
The lifespan depends on the materials used and expertise with which it is constructed and maintained. The dams in Kitui Kenya were built at a cost of US$7,500 and have a minimum lifespan of 50 years.沙坝的使用寿命由两方面来决定:第一,使用的建材;第二,建坝和维护时使用的专业知识。肯尼亚基图伊的水坝耗资7500美元,最短使用寿命为50年。沙坝的使用寿命由两方面来决定:第一,使用的建材;第二,建坝和维护时使用的专业知识。肯尼亚基图伊的水坝耗资7500美元,使用寿命至少为50年。
===成本===
The construction of dams is largely carried out by the local community. Costs mainly relate to local availability of cement, masonry and professional supervision.建坝主要是由当地社区实施的。成本主要取决于当地能否提供水泥、石工技术和专业监管。
<b>引进成本:</b>
* 运行与维护:每年5天
The cost of a sand dam in Kenya was very low, yielding 2,844 m3 of water was US$3,260 = US$1.15 per m3 storage.在肯尼亚,沙坝的花销非常低廉,产出2844立方米的水需要3260美元,即每立方米储水需1在肯尼亚,沙坝的花销非常低廉,产出2844立方米的水需要3260美元,即每立方米的储水需1.15美元。
The cost to benefit ratio for the sand dam's first year of operation is 1:12.沙坝第一年运作的成本效益比为1沙坝第一年的运作成本效益比为1:12。
===实地经验===
====Akvo RSR项目====
The following project utilize sand dams.利用了沙坝的项目有:
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{|style="border: 2px solid #e0e0e0; width: 60%; text-align: justify; background-color: #e9f5fd;" cellpadding="2"
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