Changes

Hand auger - general

104 bytes removed, 00:32, 1 June 2012

no edit summary

==Suitable conditions ==

[[Image:Auger drilling in temporary casing1.jpg|thumb|right|250px| Auger drilling in temporary casing]]

The hand auger is suitable for unconsolidated formations: sand, silt and soft clay. Stiff clays, hard materials and gravels are difficult or impossible to drill through and to remove (unless augering is combined with [[percussion - general|percussion]]).

Augers can be used up to a depth of about 15-25 meters, depending on the geology.

 

[[Image:Auger drilling in temporary casing1.jpg|thumb|right|250px| Auger drilling in temporary casing]]

{{procontable | pro=

}}

[[Image:Auger drilling in temporary casing.jpg|thumb|right|250px| Auger drilling in temporary casing]]

[[File: Drilling Method Selection.jpg|thumb|center|500px|Drilling-method selection. Chart: WEDC Loughborough University Leicestershire.]]

[[File: Drilling Method Selection.jpg|thumb|center|500px|Drilling-method selection. Chart: WEDC Loughborough University Leicestershire.]]

==Construction, operations and maintenance==

• ← Older edit
• Newer edit →

Winona

Akvopedia-spade, akvouser, bureaucrat, emailconfirmed, staff, susana-working-group-1, susana-working-group-10, susana-working-group-11, susana-working-group-12, susana-working-group-2, susana-working-group-3, susana-working-group-4, susana-working-group-5, susana-working-group-6, susana-working-group-7, susana-working-group-8, susana-working-group-9, susana-working-group-susana-member, administrator, widget editor

30,949

edits