Chapter 18 geotechnical investigations, soil classification, foundation types, driven piles, drilled shafts.
3
hours
0.3
CEUs
Codes and Standards
1.7.3
This course covers material relevant to the following ICC certification exams:
Chapter 18 geotechnical investigations, soil classification, foundation types, driven piles, drilled shafts.
Format
On-Demand Online
Delivery
Self-Paced
Access
24/7 After Enrollment
Certification
Certificate of Completion
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Contact our support teamUnderstand geotechnical investigation requirements and soil classification systems
Strong performance in IBC Soils, Foundations, and Retaining Walls depends on how consistently teams can understand geotechnical investigation requirements and soil classification systems. The most effective reviewers and inspectors treat geotechnical scoping as a repeatable process: establish scope first, verify which provisions are triggered, and document assumptions before checking detailed drawings or field conditions. This structure prevents avoidable interpretation drift and keeps corrections focused on actual risk.
A reliable workflow begins with intake screening, continues through discipline coordination, and ends with field verification tied to approved documents. At each stage, comments should identify both the issue and the compliance path, not just the deficiency. That practice improves communication with designers and contractors, reduces iterative corrections, and creates a defensible record when project conditions change.
Consider a site with variable fill and expansive clay where standard footing assumptions are unreliable. A high-quality review maps each decision point to the applicable sections, then checks dependencies on fire-resistance, egress, accessibility, structural demands, and operations before approving revisions. In inspections, staff should confirm that installed work still matches the assumptions used during plan review and require updated documentation when substitutions alter performance intent.
Common failure points include skipping early scoping, evaluating details in isolation, and accepting late changes without revalidating related systems. The correction method is to reset the decision tree: confirm the governing code path, reconcile conflicts across disciplines, and require a coordinated update package that preserves the original life-safety and compliance objectives.
Code Reference: IBC Section 1803 - Establishes geotechnical investigation scope and reporting requirements.
Apply foundation design provisions for different soil conditions
Strong performance in IBC Soils, Foundations, and Retaining Walls depends on how consistently teams can apply foundation design provisions for different soil conditions. The most effective reviewers and inspectors treat foundation type selection as a repeatable process: establish scope first, verify which provisions are triggered, and document assumptions before checking detailed drawings or field conditions. This structure prevents avoidable interpretation drift and keeps corrections focused on actual risk.
A reliable workflow begins with intake screening, continues through discipline coordination, and ends with field verification tied to approved documents. At each stage, comments should identify both the issue and the compliance path, not just the deficiency. That practice improves communication with designers and contractors, reduces iterative corrections, and creates a defensible record when project conditions change.
Consider a sloped property requiring retaining walls and coordinated drainage design near property lines. A high-quality review maps each decision point to the applicable sections, then checks dependencies on fire-resistance, egress, accessibility, structural demands, and operations before approving revisions. In inspections, staff should confirm that installed work still matches the assumptions used during plan review and require updated documentation when substitutions alter performance intent.
Common failure points include skipping early scoping, evaluating details in isolation, and accepting late changes without revalidating related systems. The correction method is to reset the decision tree: confirm the governing code path, reconcile conflicts across disciplines, and require a coordinated update package that preserves the original life-safety and compliance objectives.
Code Reference: IBC Sections 1805 through 1809 - Governs foundation wall, footing, slab, and retaining wall design/application.
Understand pile and drilled shaft design, installation, and testing requirements
Strong performance in IBC Soils, Foundations, and Retaining Walls depends on how consistently teams can understand pile and drilled shaft design, installation, and testing requirements. The most effective reviewers and inspectors treat deep foundation quality assurance as a repeatable process: establish scope first, verify which provisions are triggered, and document assumptions before checking detailed drawings or field conditions. This structure prevents avoidable interpretation drift and keeps corrections focused on actual risk.
A reliable workflow begins with intake screening, continues through discipline coordination, and ends with field verification tied to approved documents. At each stage, comments should identify both the issue and the compliance path, not just the deficiency. That practice improves communication with designers and contractors, reduces iterative corrections, and creates a defensible record when project conditions change.
Consider a deep foundation project where field test results differ from geotechnical baseline assumptions. A high-quality review maps each decision point to the applicable sections, then checks dependencies on fire-resistance, egress, accessibility, structural demands, and operations before approving revisions. In inspections, staff should confirm that installed work still matches the assumptions used during plan review and require updated documentation when substitutions alter performance intent.
Common failure points include skipping early scoping, evaluating details in isolation, and accepting late changes without revalidating related systems. The correction method is to reset the decision tree: confirm the governing code path, reconcile conflicts across disciplines, and require a coordinated update package that preserves the original life-safety and compliance objectives.
Code Reference: IBC Sections 1810 and 1811 - Regulates deep foundation design, installation, and testing procedures.
IBC Soils, Foundations, and Retaining Walls requires more than checking isolated details. Effective code administration depends on clear scoping, repeatable review workflows, and field verification practices that connect documents, installations, and public safety outcomes. When jurisdictions standardize this process, they reduce rework, improve consistency across reviewers, and produce decisions that are easier to defend.
The strongest teams use structured communication, documented assumptions, and disciplined closeout practices to keep projects aligned from intake through final approval. Applying that approach to this topic strengthens professional competency, supports predictable enforcement, and improves long-term building performance.