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Influence of TIME on the development of a landslide:<br />

progressive creep (left) and progressive wett<strong>in</strong>g (right).<br />

Rate of Creep<br />

Safety Factor<br />

3<br />

2<br />

1<br />

3<br />

2<br />

1<br />

Time<br />

FAILURE<br />

Safety Factor<br />

3<br />

2<br />

1<br />

Road fill<br />

Culvert<br />

Wett<strong>in</strong>g events<br />

4<br />

2<br />

3<br />

1<br />

FAILURE<br />

Soil<br />

Rock<br />

Wett<strong>in</strong>g events<br />

FAILURE<br />

Water<br />

Time<br />

1 2 3 4<br />

Time<br />

GEOL g406 Environmental Geology S. Hughes, 2003

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