SR99 Bored Tunnel-Assessment of Settlement Impacts ... - SCATnow

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The Alaskan Way Viaduct & Seawall Replacement Program March 2010Proposed SR 99 Bored Public Tunnel Disclosure - Assessment Request 11-0123 of for Settlement Elizabeth Campbell Impacts - 2nd to installment Buildings E-14
7.0 Levels of MonitoringEach building has been assessed for vulnerability to settlement, to determine howmuch information is needed to assess the degree of potential damage to the structureand to determine the data frequency for analysis. Taking into consideration theimportance of the building, one can determine the appropriate level of monitoring.This section provides three levels of monitoring with the quantities providedrepresenting guidelines for implementation.The number of sensors and monitoring is highly dependent on the size andcondition of the buildings, hence the notation "TBD" (to be determined).Manual crack monitors and patches are inexpensive to set up and should be usedliberally, with the frequency of observation tailored to the expected settlements anddamage being observed.Table E-1. Level 1 MonitoringItemQuantity Per BuildingManual Building Survey Point (survey targets) 4Manual Crack MonitorsTBDManual Crack PatchesTBDThe Alaskan Way Viaduct & Seawall Replacement Program March 2010Proposed SR 99 Bored Tunnel - Assessment of Settlement Impacts to Buildings E-15Public Disclosure Request 11-0123 for Elizabeth Campbell - 2nd installment
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Table of Contents1.0 EXECUTIVE SUMM
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Proposed SR 99 Bored Tunnel -Assess
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The damage classification for the r
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2.0 Program Description & Backgroun
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2.2 Tunnel Project DescriptionThe T
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2.2.3 North Access Project Descript
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3.0 Building AssessmentThe tunnel a
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. History of settlement - based upo
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4.0 Settlement and Ground Movement4
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Figure 3. Generalized Transverse Se
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5.0 Building Response to Excavation
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Table 2. Building Damage Classifica
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tunnel axis), the settlement trough
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6.0 Results of Structural Analyses6
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Therefore, high-rise buildings alon
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Table 4. Summary of Building Damage
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PROPERTY IDPROPERTY ADDRESSAPPROXIM
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7.0 ReferencesAttewell, P.B.; Yeate
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Appendix ATunnel Alignment Plan She
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A1Legend! ! SeawallPiersAreawaysTun
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T161NOTES :1) ASSESSMENT OF DAMAGE
Page 55 and 56: A3LegendMONORAILEBIAreawaysTunnelTu
Page 57 and 58: Appendix BBuilding Damage Classific
Page 59 and 60: Figure B-1. Graphical Illustration
Page 61 and 62: Appendix CBuilding Assessment Forms
Page 63 and 64: List of Abbreviations Used in Build
Page 65 and 66: Distance to Tunnel:• Horizontal o
Page 67 and 68: example, T311 and T312 are the same
Page 69 and 70: Appendix DBoscardin and Cording Ana
Page 71 and 72: Table of Contents1.0 B&C ANALYSIS M
Page 73 and 74: 1.0 B&C Analysis MethodThe building
Page 75 and 76: Offset, Yδε hLβDeparture from tu
Page 77 and 78: Figure D-1. Building Location Coord
Page 79 and 80: 1.00.90.80.7G((X-XT)/KZ)0.60.50.40.
Page 81 and 82: 2.0 B&C Damage ClassificationsTable
Page 83 and 84: 3.0 E/G RatioE/G is based upon Tabl
Page 85 and 86: 4.0 Building HeightBuilding height
Page 87 and 88: 5.0 Foundation DepthThe analysis to
Page 89 and 90: Appendix EMonitoringThe Alaskan Way
Page 91 and 92: Table of Contents1.0 INTRODUCTION .
Page 93 and 94: 1.0 IntroductionThe potential groun
Page 95 and 96: 2.0 Basic MonitoringManual survey p
Page 97 and 98: 3.0 Tilt Meter Monitoring3.1 Goals3
Page 99 and 100: 4.0 GPS Monitoring4.1 Goals4.2 Impl
Page 101 and 102: 5.0 Automated Monitoring Total Stat
Page 103 and 104: 6.0 Distributed Data Acquisition6.1
Page 105: The emerging capability of wireless
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SR99 Bored Tunnel-Assessment of Settlement Impacts ... - SCATnow

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