Laserfiche WebLink
<br />J7.0 Discussion of Long-Term Stability Based on <br />Current Conditions to November <br />This section is an update of Section 7.0 of the "1997/98 Landslide Corrective Measures Report" and H7.0 <br />of the 1999 Addendum. This section provides new discussions on the long-term stability of the landslide <br />based on information and analysis collected to November 2001. <br />The following discusses the validity of the analyses for long-term conditions, a comparison of movements <br />prior to correction and after correction, and the use of risk analysis to determine long-term s~bility. <br />J7.1 Validity of Models <br />• Validity of Model Geometry. Refer to Section 7.0 of the 1997/98 report for a discussion of this topic. <br />Validity of FLAC Model. Refer to Section 7.0 of the 1997/98 report for a discussion of this topic. <br />Validity of Limit-Equilibrium Analysis. Refer to Section H7.0 for further discussion of this topic. <br />Long-term dewatering continues on the site and limit equilibrium analysis once again shows a very slight <br />increase in the factor of safety from 1.34 in 2000 to 1.35 in 2001. Again we conclude, the analyses <br />indicate that the overall landslide is stable with the existing corrective measures. <br />J7.2 Risk Analysis and the Probability of Future Landslide Outcomes <br />This section is an update of Appendix F of the "1997/98 Landslide Corrective Measures Report" and <br />section H7.0 of the 1999 Addendum. This section provides new discussions on risk analysis and the <br />probability of future landslide outcomes based on information and analysis collected to November 2001. <br />For further discussion on risk and probability analysis refer to the 1999 Addendum. <br />. Barr Englneering Company December 15, 2000 <br />PCDOCS1230503/CAK 14 Appendix J <br />2001 Addendum to <br />199798 Landslide Correetlw Measures Report <br />