Research Article
Stability Assessment of Landslides in Dahuaqiao Reservoir Area Based on Back Analysis of Slope Monitoring
Table 9
Calculated factors of safety for Canjianqiao and Dahua landslides.
| | Landslide | | Calculation conditions | | Natural state | Precipitation | Earthquake | Drawdown |
| | Cangjiangqiao | Before impoundment | 1.07 | 1.04 | 0.98 | — | | After impoundment | 1.09 | 1.08 | 0.99 | 1.06 | | After impoundment with prestressed anchor cables | 1.09 | 1.09 | 1.00 | 1.07 |
| | Dahua | Before impoundment | 1.08 | 1.04 | 0.99 | — | | After impoundment | 1.07 | 1.04 | 0.98 | 1.06 | | After impoundment with antisliding piles | 1.09 | 1.06 | 1.00 | 1.09 |
| | Allowable factor of safety | 1.15∼1.05 | 1.10∼1.05 | 1.00 | 1.10∼1.05 |
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