Dingee Reservoir Final Seismic Report - East Bay Municipal Utility ...

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Seismic Stability Evaluation Report Dingee Reservoir Dam Oakland, California Tables Table 1 Boring Logs Summary Data Table Table 2A Laboratory Index Tests and Results Location Table 2B Laboratory Shear Strength Tests and Results Location Table 3 Average of the Index Test Results Table 4A Effective Shear Strength Parameters Table 4B Total Shear Strength Parameters Table 5 Long-Term Static Slope Stability Analysis Results – Factors of Safety Table 6 Seismic Slope Stability Analysis Results (Water El = 768 ft) Factor of Safety Table 7 Seismic Slope Stability Analysis Results (Water El = 772 ft) Factor of Safety Table 8 Seismic Slope Stability - Yield Coefficients (FS ~1.0) Table 9 Newmark Slope Displacement Estimates – Average of 3 Earthquakes Table 10 Rapid Drawdown Slope Stability Analysis Results Plates Plate 1 Site Vicinity Map and Air Photo Plate 2 Dam and Boring Location Map & Site Photograph Plate 3 Generalized Soil Profile @ Centerline of Main Dam Roadway – Profile A-A’ Plate 4 Section B-B’ @ Station 1+11 Plate 5 Reservoir Storage, Piezometer Levels, and Precipitation History Plate 6A Reservoir Storage, Horizontal Movement, and Precipitation History Plate 6B Reservoir Storage, Vertical Movement, and Precipitation History Plate 7 Atterberg Limits of Cohesive Soils – Fill & Native Material Plate 8 Moisture Content Versus Elevation Plate 9 Total Density Versus Elevation Plate 10 Dry Density Versus Elevation Plate 11 Void Ratio Versus Elevation Plate 12 Effective Stress Strength Envelope – Fill Material Plate 13 Effective Stress Strength Envelope – Native Materials Plate 14 Effective Stress Strength Envelopes – Sandstone Bedrock Plate 15 Total Stress Strength Envelope – Fill Material Plate 16 Total Stress Strength Envelope – Native Materials Plate 17 Total Stress Strength Envelope – Sandstone Bedrock Plate 18 Upstream - Long Term Slope Stability Analysis – WSL = 768’ Plate 19 Downstream - Long Term Slope Stability Analysis – WSL = 768’ Plate 20 Downstream - Long Term Slope Stability Analysis – WSL = 768’ Plate 21 Upstream – Pseudo-Dynamic Slope Stability Analysis – WSL = 768’ Plate 22 Downstream - Pseudo-Dynamic Slope Stability Analysis – WSL = 768’ Plate 23 Rapid Drawdown Slope Stability Analysis – Res. Elev. = 768’ Plate 24 Rapid Drawdown Slope Stability Analysis – Res. Elev. = 755.9’ Plate 25 Newmark Displacement Analysis – Kobe, Kocaeli, and Landers Earthquake Seismic Stability Evaluation Report - ii - Dingee Reservoir Dam August 2008
Seismic Stability Evaluation Report Dingee Reservoir Dam Oakland, California APPENDIX A Logs of Borings Appendices APPENDIX B APPENDIX C APPENDIX D APPENDIX E Laboratory Test Results Reference Drawings Geologic Evaluation Report – Joyce Associates (Subcontractor to Alan Kropp and Associates) Ground Motion Studies – Pacific Engineering & Analysis, (Subcontractor to Alan Kropp and Associates) Seismic Stability Evaluation Report - iii - Dingee Reservoir Dam August 2008
Page 1 and 2: Seismic Stability Evaluation Report
Page 3: Seismic Stability Evaluation Report
Page 7 and 8: 1.0 Introduction 1.1 Background Thi
Page 9 and 10: 2.0 Project Description 2.1 Site Se
Page 11 and 12: 3.0 Geotechnical Exploration and La
Page 13 and 14: advanced using a hollow stem auger.
Page 15 and 16: 3.3 Laboratory Testing Soil and roc
Page 17 and 18: 5.0 Subsurface Conditions Based on
Page 19 and 20: Native Material The in-situ moistur
Page 21 and 22: For slope stability analyses, both
Page 23 and 24: We have tabulated the results for b
Page 25 and 26: Table 8 Seismic Slope Stability Ana
Page 27 and 28: 8.0 Conclusions and Summary of Dam
Page 29 and 30: Mitigating Liquefaction Hazards in
Page 31 and 32: Reservoir Roof B A A’ XV-11 (Sta.
Page 33 and 34: DINGEE RESERVOIR DAM SEISMIC STABIL
Page 35 and 36: Elevation (Feet) 780 770 760 750 Re
Page 37 and 38: U-Line: PI =0.9*(LL-8) 60 50 40 30
Page 39 and 40: Total Density (PCF) 775.0 770.0 765
Page 41 and 42: 0.200 0.300 0.400 0.500 0.600 0.700
Page 43 and 44: 5000.0 4500.0 4000.0 3500.0 3000.0
Page 45 and 46: 5000.0 4500.0 4000.0 3500.0 3000.0
Page 47 and 48: 5000.0 4500.0 4000.0 3500.0 3000.0
Page 49 and 50: Material m (pcf) Dam Fill 126.8 Na
Page 51 and 52: Material m (pcf) sat (pcf) c (psf
Page 53 and 54: Material m (pcf) sat (pcf) C T (p
Page 55 and 56:
1.5 Displacement (ft) 1.0 0.5 Kobe
Page 67 and 68:
Appendix B Laboratory Test Results
Page 69 and 70:
2 62 63 64 65 66 67 68 69 70 71 72
Page 71 and 72:
TABLE B-1 SUMMARY OF LABORATORY TES
Page 73 and 74:
TABLE B-3 SUMMARY OF CONSOLIDATED U
Page 75 and 76:
TABLE B-4 UNCONFINED COMRESSION TES
Page 109:
Appendix C Reference Drawings: LIST
Page 125 and 126:
Appendix E Ground Motion Studies Pa
Page 127:
The next Generation Attenuation rel
Page 130 and 131:
Table 1 Target Response Spectrum: A
Page 132 and 133:
Figure 1. Median plus 1-sigma respo
Page 134 and 135:
Figure Set 2 (cont.) PACIFIC ENGINE
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144:
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