geotechguy1
Civil/Environmental
- Oct 23, 2009
- 667
I'm looking for a reference, the title of which eludes me on back-analysis of stable, un-failed slope. The reference presents a table of presumed factors of safety to use in the back analysis based on observed slope performance eg.
1.1 - if evidence of recurrent movement (i.e. there isn't a current failure but the geology / geomorphology suggests a history of failures)
1.3 - if no evidence of failures, no evidence of slope creep or deformation
1.4 -
I forget all the criteria now but it was used to justify using 1.3 or 1.4 in back analysis of an apparently stable slope to get parameters for use in forward analysis of a wall
1.1 - if evidence of recurrent movement (i.e. there isn't a current failure but the geology / geomorphology suggests a history of failures)
1.3 - if no evidence of failures, no evidence of slope creep or deformation
1.4 -
I forget all the criteria now but it was used to justify using 1.3 or 1.4 in back analysis of an apparently stable slope to get parameters for use in forward analysis of a wall