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冲击钻井

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===成本===

For cost comparisons between hand drilling and percussion drilling: [http://www.wellspringafrica.org/WebManual/costcomp.htm Wellspring Africa's Hand Powered Percussion Drill] illustrates costs for materials, tools, and labour.如果想比较人工挖掘井与冲击钻井的成本，请点击：[http://www.wellspringafrica.org/WebManual/costcomp.htm 非洲泉源组织手动冲击钻井]阐明了材料、工具和人力成本。

===实地经验===

Percussion drilling is mainly used in Niger, Nigeria, Chad, Liberia, Ghana, Central America and western countries.冲击钻井主要在尼日尔、尼日利亚、乍得、利比里亚、加纳、中美洲和一些西方国家使用。

===Manuals, videos and links===

*[[Solution_of_the_week_13|Akvo solution of the week 13]]

=== Acknowledgements鸣谢===

* The basis for the material on this page was obtained from a desk study shortly to be published on the website of the [http://www.practicafoundation.nl/ Practica Foundation], and from the [http://www.rural-water-supply.net/ Rural Water Supply Network], and specifically its [http://www.rural-water-supply.net/en/implementation/manual-drilling manual drilling section].

* [http://www.lboro.ac.uk/well/resources/technical-briefs/43-simple-drilling-methods.pdf 43. Simple drilling methods.] WEDC.

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