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Employee Profiles: Senior Professionals
Dale R. Marcum
Associate Geological Engineer
Registration
Registered Professional Civil Engineer in California,
RCE 65837
Education
M.S., Geotechnical Engineering: University of California, Berkeley,
California, 1987
B.A., Geology: Western State College, Gunnison, Colorado, 1983
Areas of Specialization
Rock and soil slope characterization and stability
analysis; Engineering geologic mapping, hazard mapping and risk
assessment; Subsurface investigation, small and large diameter drilling
and coring; Instrumentation design, installation and analysis for
rock and soil sites; Laboratory testing, program design and analysis;
Stability analyses, rock and soil slopes, two and three dimensional
limit equilibrium; Mitigation design, retaining walls, tieback shear
pins, rock anchors and bolts
Representative Experience
Mr. Marcum has over 22 years of experience in
the geotechnical field, working on geologic and geotechnical projects
in both northern and southern California and Hawaii.
As a Senior Geological Engineer, Mr. Marcum has
extensive experience with geologic hazard mapping, rock and soil
slope stability analyses, design of stabilization measures and instrumentation
design for rock and soil slopes. This includes geologic mapping,
installation of instrumentation and analysis of a large and deep
rockslide at a limestone quarry in Cupertino; geologic mapping,
instrument installation and three-dimensional analyses of the Big
Rock Mesa rockslide in Malibu and the Hulu-Woolsey landslide on
Oahu, Hawaii; mapping and instrument installation in several seismically
activated (Loma Prieta Earthquake) rockslides in the Santa Cruz
Mountains for the Corps of Engineers; the geologic and geotechnical
assessment of twenty three penstocks and siphons in the central
and southern Sierra Nevada; engineering geologic mapping and kinematic
rock slope stability assessment at two of PG&E's Forebay dam
abutments; evaluation of landslides and debris flow potential along
an 8-mile long diversion pipeline in the Sierra Nevada, and the
detailed engineering geologic mapping, instrumentation analysis
and rock slope stability assessment of a penstock and siphon owned
by PG&E in the northern Sierra Nevada. He also completed
an engineering geologic investigation for a proposed quarry in Monterey
County that included engineering geologic mapping, discontinuity
characterization and rock slope stability analyses. Mr. Marcum also
served as an independent reviewer for the analysis of a potential
rockslide at PG&E's Diablo Canyon Power Plant. The work included
a review of engineering geologic mapping, drilling and logging of
core, laboratory testing of rock and soil samples, static and seismic
slope stability analyses, seismic displacement (Newmark) analyses
and rock slope kinematic analyses and bolt design.
Many of these projects involved the design of
remediation measures including low and high capacity rock bolts
and deep rock anchors, cantilevered and tied-back concrete shear
pins, grading repairs involving removal and replacement of the unstable
material and/or the installation of earth buttresses, cantilevered
retaining walls and lowering the ground water table using both vertical
and horizontal drains. He has investigated and analyzed the stability
of soil and rock slopes using the UTEXAS3, CLARA, XSTABL, BLOCK,
DIPS, SWEDGE and FLAC computer programs, and is experienced with
using the program DISPLMT for determination of permanent seismically
induced displacements.
Mr. Marcum also has extensive experience with
geotechnical instrumentation systems for large and small landslides.
The monitoring systems have included inclinometers, open tube piezometers,
strain gauge and vibrating wire piezometers, survey reflector prisms
for an EDM based theodolite, point and magnet extensometers, rod
extensometers and tiltmeters.
Professional Affiliations
American Society of Civil Engineers
American Public Works Association
Selected Publications
ANALYSIS OF LANDSLIDES IN THE EPICENTRAL REGION
REACTIVATED BY THE 1989 LOMA PRIETA EARTHQUAKE, CENTRAL SANTA CRUZ
MOUNTAINS, CALIFORNIA: in review (with W. F. Cole, P. O. Shires
and B. R. Clark), in The Loma Prieta, California Earthquake of October
17, 1989, U. S. Geological Survey Professional Paper.
ANALYSIS OF LOMA PRIETA EARTHQUAKE-TRIGGERED LANDSLIDES,
CENTRAL SANTA CRUZ MOUNTAINS, CALIFORNIA: 1991, (with W. F. Cole,
P. O. Shires, B. R. Clark, and R. P. Lozinsky), Geological Society
of America, Cordilleran Section 87th Annual Meeting, March 25-27,
1991, San Francisco, California, Abstracts with Programs, p.63.
INVESTIGATION OF LANDSLIDES TRIGGERED BY THE 1989
LOMA PRIETA EARTHQUAKE AND EVALUATION OF ANALYSIS METHODS: 1991
(with W. F. Cole, P. O. Shires, and B. R. Clark), Final Technical
Report to U. S. Geological Survey, National Earthquakes Hazards
Reduction Program, Grant Award No. 14-08-0001-G1860.
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