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Percussion - Stone hammer

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The Stone-hammer method has won a competition for innovative irrigation technologies organized by the World Bank, Winrock and International Development Enterprises (IDE).

==Suitable conditions ==

Percussion drilling is suitable for unconsolidated and consolidated formations: Sand, silt, stiff clays, sandstone, laterite and gravel layers.

* Less accidents during construction.

* Less risk of contamination of the water.

 

[[File: Drilling Method Selection.jpg]]

==Construction, operations and maintenance==

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