Design and Construction on Expansive Soils

This course, "Design and Construction on Expansive Soils," offers a comprehensive exploration of the challenges and solutions associated with building on soils that swell and shrink with moisture changes. Understanding these prevalent and problematic soil conditions is critical for engineers and construction professionals to ensure structural integrity and longevity.

You will gain in-depth knowledge on identifying expansive soils, including various clay types (like Montmorillonite) and other materials such as pyrite and slag. The course delves into the mechanisms of soil expansion and contraction, examining the critical role of water, soil mineral structure, and geological formation. We will explore forensic analysis techniques for existing structures displaying damage symptoms, from foundation cracks to difficult-to-open doors, and discuss evaluation methods for both vertical and lateral soil movement.

Key learning outcomes include:

• **Soil Identification & Characterization:** Learn to recognize and classify expansive soils through various geotechnical testing methods, including invasive and non-invasive techniques.
• **Site Evaluation & Investigation:** Master the process of comprehensive site assessment, leveraging historical data, topographic records, and advanced geophysical methods (seismic reflection, electrical resistivity, cross-hole tomography).
• **Foundation Design & Construction:** Discover effective strategies for designing and constructing foundations on expansive soils, including deep foundations, structural slabs with void spaces, and post-tensioned slabs.
• **Remediation & Stabilization:** Explore practical repair techniques for damaged structures, from crack monitoring to carbon fiber reinforcement, and advanced soil stabilization methods like dynamic compaction and chemical treatment.
• **Slope Stability & Infrastructure:** Understand how expansive soils impact slopes and linear infrastructure (roads, pipelines), and learn about various stabilization techniques, including soil nailing, geogrids, and specialized retaining walls.

Through practical case studies and discussions on applicable building codes and construction management best practices, this course equips participants with the expertise to mitigate risks, ensure safety, and achieve successful project outcomes when working with expansive soils.