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Assistant/Project Engineer (Geotechnical Engineer)

Tetra Tech Inc

  • Orlando, FL
  • 1 day ago

    Highlights

    f) Performing laboratory testing and characterizing soils based on the results of index tests (sieve analysis and Atterberg limit tests), hydraulic conductivity tests, strength tests (Triaxial, Unconfined Compressive, Direct Shear) and consolidation tests; and conducting rock core compressive strength, tensile strength, point load, and Unconfined Compression Strength tests including modulus of elasticity and Poisson's ratio determination. 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.

    Numbers & Facts

    LocationOrlando, FL
    IndustryOther/Not Classified
    Company Size10,000 employees or more
    Year Founded1966

    Description

    Job Title: Assistant/Project Engineer (Geotechnical Engineer)

    City: Orlando

    State: FL

    JOB DESCRIPTION:

    • 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, phosphogypsum, silica gravel, 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 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 inspections at industrial waste disposal sites, oversee progress in construction, attend meetings, and draft the minutes.

    • 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 of the foregoing for Geotechnical Engineering Projects.

    EDUCATION AND EXPERIENCE: Requires a Master's degree in Civil Engineering with a major/concentration in Geotechnical Engineering (defined as completion of 24 credits of Geotechnical Engineering topics and 3 months experience as a Graduate Research/Teaching Assistant) or any other job title.

    The Master's degree and experience must include coursework and experience with an emphasis on:

    a) Performing liquefaction analysis and seismic analysis of slopes, embankments, and retaining walls; and evaluating engineering geology and advanced soil behavior.

    b) Performing and evaluating seepage analysis for steady state and transient state using computer software SEEP/W, and slope stability analysis using computer software SLOPE/W.

    c) Preparing geotechnical engineering reports on slope stabilization and foundation design summarizing field and laboratory tests, engineering analyses, and recommendations for slope protection works.

    d) Computing settlement and time rate of consolidation of geotechnical systems subjected to ramp loading using manual calculations and computer software; and evaluating bearing capacity and consolidation behavior of foundations for buildings, bridges, and transmission line towers.

    e) Planning field exploration programs, soil sampling processes and laboratory tests on soil, including coordinating geotechnical investigations, and planning and monitoring drilling, coring, borehole logging, and soil sample collection.

    f) Performing laboratory testing and characterizing soils based on the results of index tests (sieve analysis and Atterberg limit tests), hydraulic conductivity tests, strength tests (Triaxial, Unconfined Compressive, Direct Shear) and consolidation tests; and conducting rock core compressive strength, tensile strength, point load, and Unconfined Compression Strength tests including modulus of elasticity and Poisson's ratio determination.

    g) Analyzing and evaluating soil parameters based on results of Standard Penetration Test (SPT) and Cone Penetration Test (CPT).

    h) Designing and analyzing ground improvement and soil stabilization methods, including evaluating pile foundation systems using Dynamic Pile Load Test (PDA), Crosshole Sonic Logging (CSL), Pile Lateral Load Test, Pile Integrity Test (PIT), and Static Pile Load Test; and assessing liquefaction mitigation approaches with stone columns and micro piles.

    i) Designing geotechnical systems including shallow foundations, deep foundations, retaining structures, and slopes, through bearing capacity calculations, pile capacity estimations, and slope stability analyses.

    j) Developing statistical and probabilistic models to define parameters for foundation design, seismic hazard analysis, geospatial liquefaction potential mapping using ArcGIS and Python-based analysis, and probabilistic failure analysis.

    k) Assisting with project management tasks, including material quantities, budget estimates, and construction schedules.

    l) Preparing and reviewing construction drawings using AutoCAD and Civil3D.

    m) Monitoring of subsurface water levels implementing standpipe piezometers development and measurement.

    n) Conducting and analyzing the packer test data for in-situ determination of the hydraulic conductivity in the rock-sites.

    o) Assisting in conducting non-destructive subsurface investigation using geophysical methods including Multi-channel Analysis of Surface Waves (MASW) and Seismic Refraction Tomography (SRT); and estimating time-averaged shear wave velocity to 30 meters (Vs30) using microtremor HVSR for site characterization and seismic site classification.

    p) Processing, analyzing, and visualizing large geotechnical and geospatial datasets and developing predictive machine learning models using Python, including soil parameter analysis, and preparation of high-quality figures, charts, and technical presentations.

    Experience can be pre or post degree.

    JOB TIME: Full Time

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    Additional Information

    • Organization: 113 AAI

    About Company

    Tetra Tech is a leading provider of consulting, engineering, and technical services worldwide. Our reputation rests on the technical expertise and dedication of our employees—16,000 people working together across disciplines and time zones to provide smart, sustainable solutions for challenging projects. We are proud to be home to leading technical experts in water, environment, infrastructure, resource management, energy, and international development. Tetra Tech combines the resources of a global, multibillion dollar company with local, client-focused delivery in 400 locations around the world. We offer competitive compensation and benefits and are searching for innovative people to join our teams.

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