SkillsLib.ai

Foundation Design Analyzer

Analyze soil data and design foundations with bearing capacity calculations

3.9(33 reviews)
100+ downloads
Updated Sep 2026
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What You Can Do

This skill synthesizes soil investigation reports, borehole logs, and laboratory test results into actionable foundation design recommendations. You can perform bearing capacity calculations using standard methods (Terzaghi, Meyerhof, Hansen), evaluate settlement potential, determine appropriate foundation types (spread footings, piles, mats, micropiles), and generate professional design reports that integrate engineering judgment with quantitative analysis—all while maintaining full traceability of assumptions and factors of safety.

Features

Bearing Capacity Calculations

Computes allowable bearing pressures using Terzaghi, Meyerhof, and Hansen methods with customizable factors of safety

SPT Data Processing

Converts Standard Penetration Test N-values and laboratory results into design parameters and soil classification

Settlement Analysis

Evaluates immediate, consolidation, and differential settlement potential with risk flagging

Foundation Type Evaluation

Compares shallow foundations, deep piles, mat foundations, and micropiles with cost-benefit analysis

Design Report Generation

Produces client-ready documentation with assumptions, calculations, and design traceability

Critical Parameter Flagging

Identifies soil anomalies, variable strata, and design constraints requiring engineer review

Design Memo Formatting

Structures findings for design team integration and regulatory submission

Factor of Safety Tracking

Maintains transparent documentation of all applied safety factors and engineering judgment

Example Output

Example 1: Spread Footing Analysis

  • Soil Profile: Dense sand (SPT N=35) over stiff clay (SPT N=22)
  • Allowable Bearing Pressure (Meyerhof): 285 kPa at 1.5 m depth
  • Settlement Estimate: 18 mm immediate + 12 mm consolidation
  • Recommendation: 1.5 m × 1.5 m spread footing at 1.5 m depth, bearing pressure limited to 250 kPa (conservative)

Example 2: Pile Foundation Decision

  • Soil Profile: 3 m fill/soft clay, then dense sand below
  • Shallow foundation settlement risk: 75 mm differential
  • Recommended: 400 mm diameter bored piles to 12 m depth in dense sand
  • Pile Capacity (shaft + tip): 850 kN per pile, safety factor = 2.5
  • Cost comparison: Piles +25% material, -40% settlement risk

Example 3: Design Summary Report

  • Bearing capacity summary table with three foundation options
  • Settlement assessment with differential settlement matrix
  • Design assumptions and factor of safety justification
  • Recommended foundation type with depth, dimensions, and pressure limits

What's Included

  • SKILL.md instruction file with analysis methodology and workflow:
  • Bearing Capacity Calculation Template: Pre-formatted sheets for Terzaghi, Meyerhof, and Hansen methods
  • SPT Data Processing Checklist: Step-by-step guide for converting field logs to design parameters
  • Foundation Type Comparison Matrix: Framework for evaluating spread footings, piles, mats, and micropiles
  • Design Report Template: Professional memo format with assumptions, calculations, and recommendations
  • Settlement Assessment Worksheet: Structured approach to immediate and consolidation settlement evaluation

Who It's For

  • Geotechnical Engineers — Designing foundations from soil investigation data and producing design documentation
  • Structural Engineers — Evaluating foundation recommendations and coordinating with geotechnical team
  • Junior Engineers & Graduates — Learning soil-to-structure design workflow and bearing capacity principles
  • Construction Managers — Reviewing geotechnical recommendations for feasibility and cost implications
  • Project Engineers — Preparing foundation design memos for client approval and regulatory submission

Best For

  • Preliminary foundation design analysis from Phase 1 borehole investigation data
  • Converting SPT N-values and laboratory test results into allowable bearing pressures
  • Evaluating and comparing multiple foundation options (shallow vs. deep, cost-benefit analysis)
  • Settlement assessment and differential settlement risk evaluation
  • Generating professional design documentation for client approval and permit submission

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