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Hand auger - driven wells

1 byte added, 05:10, 27 April 2012
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[[Image:Treadle_pump_icon.png|right]]
[[Image:Driven point Point and hammering toolwell screen.jpg|thumb|right|300px| Driven point Point and hammering toolwell screen]]
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[[Image:Self made point and well screen.jpg|thumb|right|300px| Self made point and well screen]]
[[Image:Point and well screen.jpg|thumb|right|300px| Point and well screen]]
==Construction, operations and maintenance==
[[Image:Driven point and hammering tool.jpg|thumb|right|300px| Driven point and hammering tool]]
 
Driven wells are sometimes used in combination with augers in collapsing sand layers. If augers cannot penetrate further into a collapsing sand layer, and a temporary casing cannot be used (for example, the casing is stuck in a clay layer, see description above), a well point and well screen can be driven into the ground using a hammering tool or normal hammer.
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