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<br />Philip J. Shaller, Ph.D., R.G., C.E.G.
<br />Senior Managing Scientist
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<br />Professional Profile
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<br />Dr. Philip Shaller is a Senior Managing Scientist and head of the Geo Group within Exponent’s
<br />Civil Engineering practice. He has worked for 20 years as an engineering geology consultant.
<br />His expertise includes geological and geotechnical site investigations, slope stability analysis,
<br />landslide and debris flow identification and mitigation, rheological modeling of debris flows,
<br />evaluation of debris flow recurrence intervals, potential travel pathways and protective
<br />structures, geologic field mapping, analysis of aerial photographs and remote sensing images
<br />including InSAR and synthetic aperture radar imagery, sub-surface characterization by means of
<br />small diameter borings, rock coring and large diameter borings (downhole logging), assessment
<br />of bedrock permeability by means of downhole packer testing, well construction and
<br />development, fluvial geomorphology, assessment of alluvial fan flooding patterns, field and
<br />aerial photo analysis of historic flood patterns, assessment of future flood pathways,
<br />investigation of fire-flood-erosion processes, investigation of dam failure, foundation
<br />construction and earthwork observation, rock mass characterization for tunneling and dam
<br />construction, seismic hazard characterization, assessment of aggregate resources for use as
<br />railroad ballast, expansive and collapsible soils hazards, coastal geomorphology, and karst
<br />geomorphology.
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<br />Dr. Shaller’s specialty is in the field investigation and mechanics of large-scale landslides and
<br />debris flows. He also holds bachelors and masters degrees in geochemistry, with a specialty in
<br />the chemistry of liquid sulfur and aqueous- and vapor-phase sulfur compounds.
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<br />Academic Credentials and Professional Honors
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<br />Ph.D., Geology, California Institute of Technology, 1991
<br />M.S., Geochemistry, Montana College of Mineral Science and Technology, 1985
<br />A.B., Geochemistry, Occidental College, 1983
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<br />Robert P. Sharp Graduate Teaching Award, California Institute of Technology, Division of
<br />Geological and Planetary Sciences, 1990
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<br />Moderator (with MW Hart), Symposium on Long-Runout Landslides and Rock Avalanches,
<br />52nd Annual Meeting of Association of Engineering Geologists, Lake Tahoe, CA, September 23,
<br />2009.
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<br />Licenses and Registrations
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<br />Professional Geologist, California, #6132; Certified Engineering Geologist, California, #1912
<br />Registered Geologist, Idaho, #1010; Registered Geologist, Washington, #261
<br />40-Hour HAZWOPPER certification
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