Geotechnical Site Investigation and In-situ Testing
Online
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Oct 2 - 3, 2025
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Course Code: 16-1028-ONL25
- Overview
- Syllabus
- Instructor
Overview
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):
9 am to 5 pm Eastern (Will include the usual breaks)
Please note that it is a requirement for all attendees to sign a "Confidentiality Agreement" prior to receiving the course notes for this online offering.
After participating in this course, you will be able to:
- Understand the principles and procedures for geotechnical site investigation.
- Learn how to select the right type of in-situ testing tool.
- Become knowledgeable about the observational method in geotechnical engineering and state-of-the-art technologies used for geotechnical investigation.
- Review applications of site investigation, observational method, and in-situ testing for slopes, settlement, fills, excavations and walls.
Description
Geotechnical engineers have a fascinating, yet occasionally confounding, job because they deal with inherently variable materials arranged by Nature - soil and rock. Karl Terzaghi once purportedly stated, “Nature has no contract with mathematics…” Similarly, Peck (1972) said, “In construction underground, where the engineer deals with materials having properties that vary not only in space but also in time, details of construction often have significant or even overwhelming influence on the behavior of the structure and the surrounding soil.
For an understanding of the behavior, these details must be observed and recorded.” As such, geotechnical engineers, perhaps more than any other branch of civil engineering, rely on physical (and preferably in-situ) measurements of material (soil and rock) properties and behavior for use in engineering design and the subsequent evaluation of engineering performance.
This course provides a comprehensive understanding of geotechnical site investigation methods, emphasizing the importance of stratigraphy, groundwater conditions, soil characterization, field testing, and laboratory analysis. Participants will gain practical knowledge of site investigation planning, execution, and interpretation.
Who Should Attend
Designers • Planners • Construction Managers • Geotechnical Engineers • Municipal Engineers • Contractors • Owners and Other Technical Personnel Interested in Geotechnical Site Investigation and in-situ testing of soils
Special Features & Requirements
Practical and Field-Oriented Approach
Industry-Relevant Case Studies
Balanced Coverage of Testing Methods
Interactive Learning Experience
Emphasis on Risk Management and Professional Practice
Time: 9:00 AM - 5:00 PM Eastern Time
Please note: You can check other time zones here.
Syllabus
Day 1: Fundamentals and Investigation Methods
Session 1: Introduction to Geotechnical Site Investigation
Definition & Objectives
- Importance of site investigation
- Site investigation objectives: stratigraphy, groundwater conditions, material properties, geotechnical hazards
Challenges & Costs
- Common geotechnical failures due to poor investigation
- Cost implications and planning considerations
- Examples of failures due to inadequate site investigation
Session 2: Site Investigation Planning & Preliminary Studies
Planning a Site Investigation
- Desk study, reconnaissance, subsurface exploration, testing, interpretation
- Required geotechnical parameters for design
Desk Study & Walkover Survey
- Literature review, geological maps, satellite imagery
- Identifying hazards, previous land use, site topography
Observational Method (Peck, 1969)
- Adaptive approach in geotechnical design
Session 3: Subsurface Exploration Methods
Preliminary vs. Detailed Exploration
- Borehole placement strategies
- Number and depth of boreholes for different projects (buildings, roads, dams)
Drilling Methods
- Trial pits & hand auger drilling
- Rotary drilling techniques (hollow-stem, solid-stem augers, tricone bits)
- Core drilling and rock coring
Session 4: In-Situ Testing Methods (Part 1)
Standard Penetration Test (SPT)
- Procedure, correction factors, correlation with soil properties
Cone Penetration Test (CPT)
- CPT equipment and interpretation
- Soil classification from CPT data
Field Vane Shear Test (FVST)
- Shear strength determination in soft clays
Q&A and Discussion
Day 2: Advanced Investigation Techniques & Case Studies
Session 5: In-Situ Testing Methods (Part 2)
Pressuremeter Test (PMT)
- Menard pressuremeter and its applications
Dilatometer Test (DMT)
- Marchetti dilatometer for soil profiling
Borehole Shear Test (BST)
- Shear strength determination in situ
Session 6: Geophysical and Hydraulic Conductivity Testing
Geophysical Techniques
- Seismic refraction and reflection
- Ground Penetrating Radar (GPR)
- Electrical resistivity testing
Hydraulic Conductivity Testing
- Slug test, packer test, and pumping test
- Interpretation of permeability results
Session 7: Interpretation of Site Investigation Data
Data Analysis & Interpretation
- Correlation of in-situ test results with soil properties
- Estimating design parameters (bearing capacity, settlement)
Uncertainties & Risk Management
- Geotechnical claims and litigation examples from Canada
Session 8: Case Studies & Real-World Applications
Review of Famous Geotechnical Failures
- Cases where inadequate site investigation led to failure
Best Practices in Site Investigation
- Lessons learned and improving industry practices
Q&A, Discussion, and Wrap-up
Instructor

Dr. Sadrekarimi is an Associate Professor of Civil Engineering at Western University (London, Ontario). Dr. Sadrekarimi’s academic and professional expertise involves soil mechanics, foundation engineering, deep foundations, dam, advanced soil testing and characterization of soil behavior, in-situ testing, soil dynamics and geotechnical earthquake engineering, static and dynamic analysis of retaining walls, buried structures, and slope stability analysis. He joined Western after several years of engineering practical experience at Golder Associates Ltd. Dr. Sadrekarimi has over 50 published papers in peer-reviewed conference proceedings and journals.
Dr. Sadrekarimi is a member of the International Society of Soil Mechanics and Foundation Engineering (ISSMFE), the American Society of Civil Engineers (ASCE), the Canadian Geotechnical Society, research director of Western’s Geotechnical Research Centre (GRC).

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Fee & Credits
$1295 + taxes
- 1.4 Continuing Education Units (CEUs)
- 14 Continuing Professional Development Hours (PDHs/CPDs)
- ECAA Annual Professional Development Points
Group Training
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