practicing geology in a digital worldeps.berkeley.edu/.../berkeley_timote_2007.pdf · analysis...
TRANSCRIPT
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Practicing Geology in a Digital World
Timothy I. Mote PhD, CEG, GISP
Senior Engineering Geologist/GIS AnalystGeomatrix Consultants
Berkeley EPS Alumni Student Forum
1/23/07
Geomatrix Office Locations:
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Geotechnical Engineering/Engineering Geology
Environmental Science and EngineeringNatural Resources Water ResourcesEnvironmental Permitting and Impact AnalysisDecision and Quantitative AnalysisProcess Engineering
Geomatrix Practices:
Geologists / Hydrogeologists
Civil / Chemical / Geotechnical Engineers
Decision AnalystsCompliance SpecialistsAtmospheric ScientistsRisk AssessorsToxicologists and CIHsBiologistsData Management / IT Specialists
Geomatrix Areas of Expertise:
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UC Berkeley Memorial Stadium Fault Study
BART Retrofit
Caldecott TunnelSF Muni 4th St. UndergroundBay Bridge Diversion Structure Carquinez Bridge (Zampa) South Bay, Delta and New Orleans LeveesSan Pablo Dam (EBMUD)PG&E, EBMUD, CALTRANS, BART, US State Dept.
Key Bay Area Projects:
GIS Discipline
•GIS is a key tool in the Geotechnical/Engineering Geology andEnvironmental Science and Engineering Practices
•Map Compilation/Review
•Data Management
•Spatial Analysis
•3D Visualization
•Reporting/Dissemination
•Essential to have solid background and experience in both disciplines
•Keep grounded by participating in field work
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GIS-based Applications in Geotechnical and Environmental Engineering Applications
•Engineering Geology•Slope Stability•Rockfall Analysis•Project Siting Studies
•Seismic Hazard Assessment•Probabilistic Seismic Hazard Analysis (PSHA) Modeling•Fault Rupture Evaluations •Tsunami and Volcanic Hazard Assessments
•Supports both Geotechnical and Environmental Engineering Disciplines
•Database Management •Spatial Analyses – GIS Screening Studies•3D Modeling and Visualizations• Web-based Map Viewers
• Slope Stability • Rockfall Analysis
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Geologic and Geotechnical Investigation:Hydro-Electric Penstocks in the Sierra
Rockfall Evaluation at Cape Disappointment
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Slope Stability Analysis
Slope Stability Assessment:Dip Slope Failure
• Bedding Strike +/- 20 of Hillslope Strike• Bedding Dip (apparent dip) < Hillslope Dip
Hoek and Bray, 1981
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Slope Stability Assessment: Wedge Failure
• Calculate intersection between 2 structures
• Intersecting plunge (apparent dip) < slope• Intersecting bearing out of slope face
Geology:Bedding Orientation Stereonet
Geology:Bedding Orientation Stereonet
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• Apply traditional Kinematic Analysis within 3D GIS-based model
• Landfill and Gravel Quarry Sites
3D Modeling:Kinematic Slope Stability Analysis
Landslide Modeling for Powerlines
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Towers (points) are classified based on proximal terrain features.
Analysis & Decision Making Spatial Analysis
• Seismic Hazard Assessments
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Worldwide Seismic Hazard Studies:U.S. Department of State
PSHA Modeling
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Reporting Parametric Data Tables
Worldwide Landslide Hazard Screening:U.S. Department of State
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Worldwide Tsunami Hazard Screening:U.S. Department of State
Evaluation of Potential Tsunami Sources:
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Evaluation of Potential Tsunami Sources:
• Fault Rupture Evaluation
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Fault Rupture Hazard Assessment:Memorial Stadium, Berkeley, CA
Paleoseismologic Investigation:Trench Surveying
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Geology:Healdsburg Fault
Geologic and Geotechnical Investigation:Bay Division Pipeline
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• Levee Assessments
Reporting Effective Visualizations
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Databases linked to spatial maps is compiled into a system to support design and planning
Analysis & Decision Making Parametric Mapping
Field reconnaissance/mapping is compiled into a system to support design and planning
Analysis & Decision Making Parametric Mapping
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• 3D Modeling and Visualizations– Geotechnical
• 3D Geology to Support Models• Cut and Fill Volumes
– Environmental• 3D Chemical Plumes• Modeling Support• Excavations
Bedrock Surface, Alluvium and Soft Silt Layers(Looking Upstream)
Top of Alluvium
Top of Soft Silt
Boring Key
Fill
Alluvium
3D Geologic Modeling:San Pablo Dam, CA
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GIS Analysis:3D Geologic Model – BART Transition Structure
Analysis & Decision Making Supporting Modeling Efforts
LIDAR data processinHarris County
Cypress CreekConceptual Design
High resolution data forriver restoration
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Analysis & Decision Making Supporting Modeling Efforts
contouringusing LIDAR
Geomorphic and Structural Analysis:River Bank Stability Assessment
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Analysis & Decision Making Excavation scenarios (5ft)
Support groundwater flow assessment
Analysis & Decision Making 3D Geologic Modeling
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Analysis & Decision Making 3D Geologic Modeling
Support groundwater flow assessment
Reporting Effective Visualizations
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Dissemination of Data Custom GIS and/orDatabase-Driven Web Sites
Dissemination of Data Sharepoint: Web-Based ContentManagement
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GIS Ground Motion Modeling:1999 Hector Mine M7.1
Animations 1992 Landers M6.9
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GIS Discipline
•GIS is a key tool in the Geotechnical/Engineering Geology andEnvironmental Science and Engineering Practices
•Map Compilation/Review
•Data Management
•Spatial Analysis
•3D Visualization
•Reporting/Dissemination
•Essential to have solid background and experience in both disciplines
•Keep grounded by participating in field work
Key Classes
•Essential to have a broad background in consulting industry
•Mapping/Field Camp (project component)•Geostatistics•Structural Geology•Stratigraphy/Soils•Geomorphology•Economic/Resource Geology•Seismology/Tectonics
•Applied Geophysics•Earthquake Engineering
•GIS•Remote Sensing/Image Processing•Intro to Programming
•Show initiative and willingness to take on new challenges