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Rock Stability 

GEO5

Geotechnical software

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Tensile strength of rock

Tensile strength Te   is 20 to 30 x smaller than the strength of rock in simple compression σc.

Strength in simple tension To for selected intact rocks [MPa]

Basalt 3 - 18
Gneiss 7 - 16
Granite 11 - 21
Limestone 3 - 5
Marble 7 - 12
Quarzite 4 - 23
Sandstone 5 - 11
Schist 5 - 12
Slate 2 - 17
Tuff 2 - 4



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