Assistant/Project Engineer (Geotechnical)
Summarize, evaluate, and present field and laboratory data using computer worksheet programs including gINT, Microsoft Excel and Sigma Plot.
Perform geotechnical engineering analyses, including geotechnical characterization and selection of soil engineering properties, applying geotechnical engineering techniques, procedures and criteria, using computer software including SEEP/W for steady state and transient analyses, SLOPE/W for static and seismic stability analyses, liquefaction analysis, conducting consolidation analyses of clays subject to ramp loading and deriving undrained shear strength profiles in accordance with SHANSEP design methodology.
Perform analysis and design for shallow and deep foundation systems including bearing capacity and pile capacity calculations, settlement estimations, and downdrag applicable to foundation design of structures.
Plan and coordinate geotechnical laboratory testing of soils, geosynthetics (including HDPE geonets, HDPE liner, and geotextiles), and water samples.
Plan and coordinate subsurface exploration programs, field tests, and construction quality assurance activities related to geotechnical engineering projects.
Plan and coordinate geophysical investigations, Standard Penetration (SPT) and/or Cone Penetration (CPT) tests to detect the presence of subsurface features which could be suggestive of potential paleo-karts phenomena, interpret the results of the geophysical surveys and subsurface exploration programs, and manage the remediation of potential features
Research and review available information and present geotechnical, geological and hydrogeological material properties, including water balance calculations, required for by-product disposal facilities, as needed for senior engineer review.
Develop predictive models and charts to estimate volume of slurry deposited in settling containment ponds.
Develop and implement technical specifications for geotechnical engineering projects, including by-product disposal sites.
Develop and review construction drawings for by-product disposal sites using AutoCAD Civil3D computer program, as needed for senior engineering review.
Monitor subsurface movements and deformations by interpreting and analyzing measurements from field instrumentation such as slope inclinometers and piezometers.
Analyze the results of in-situ permeability tests and review potentiometric data to develop monitor wells in various aquifer systems.
Perform weekly inspections at industrial waste disposal sites, oversee progress in construction, attend meetings, and draft the minutes for senior engineering review.
Prepare geotechnical engineering reports summarizing field and laboratory data, engineering analyses, and construction quality assurance data applicable to geotechnical engineering projects including by-product disposal sites, as needed, for senior engineering review.
Assist senior engineers with project management and business development, including, preparing proposals, budget estimates and construction schedules.
Present technical results and reports verbally and in writing.
Perform all the foregoing for Geotechnical Engineering Projects.
EDUCATION AND EXPERIENCE REQUIREMENT:
Requires a Master’s degree in Civil Engineering with a major/concentration in Geotechnical Engineering (defined as completion of Master’s Thesis in Geotechnical Engineering with emphasis in earthquake induced liquefaction), and six (6) months experience as a Graduate Research/Teaching Assistant or any other job title responsible for:
Formulating research hypotheses regarding industry-related geotechnical engineering topics and implementing a research methodology for a research project.
Performing geotechnical engineering laboratory testing including cyclic direct simple shear and cyclic triaxial tests on reconstituted sand samples at different relative densities, overburden pressures, and applying different cyclic stresses using sine or earthquake motions by controlling the amount of either strain or stress.
Performing parametric studies of empirical relationships for the estimation of geotechnical properties to determine the effects of assumptions made in engineering analyses.
Performing analysis and developing spreadsheets of various methods for estimation of cyclic strain amplitude and number of applied strain cycles representing the amplitude and duration of applied earthquake loading using computer software such as MATLAB.
Implementing strain-based pore pressure generation models to estimate the magnitude of excess pore pressure developed at sites and determining whether liquefaction will be triggered.
Determining thresholds of peak ground surface acceleration under which there is no development of excess pore pressures to evaluate initial liquefaction of sites.
Evaluating small strain shear wave velocity (Vs) and Standard Penetration Test (SPT) field liquefaction case histories using the stress-based simplified liquefaction evaluation procedure and the cyclic strain approach.
Evaluating liquefaction triggering potential that could influence the stability of by-product disposal sites and/or landfills.
Preparing and presenting progress results for supervisors.
Analyzing laboratory testing results, generating relevant charts, and presenting the research outcome in a comprehensive report.
Assisting in the academic duties of a geotechnical engineering course related to deep foundations and requiring the use of GRLWEAP and LPILE computer software.
Experience can be pre or post degree.