ToolFusion
πŸ“‹ Case Study

High-Capacity Sprayer Tire Optimization in Western Australia

Subsoil compaction limiting deep drainage and increasing waterlogging risk

πŸ—οΈ Project Overview

36 m boom sprayer operating on duplex soils (sandy topsoil over clay subsoil)

🎯 Challenge

Subsoil compaction limiting deep drainage and increasing waterlogging risk

πŸ”§ Design Approach

Trialed ultra-low-pressure (85 kPa) 800/70R32 radials with optimized dual spacing (550 mm center-to-center)

πŸ“ Design Diagram

High-Capacity Sprayer Tire Optimization Western Australia β€’ Subsoil Compaction Mitigation Challenge: Subsoil compaction β†’ reduced deep drainage & increased waterlogging risk 550 mm (center-to-center) Effective Ground Pressure 48 kPa Load / (Contact Area Γ— Tire Count) Subsoil Stress @ 40 cm Οƒ_z = 32 kPa q Γ— I(z/b) 800/70R32 β€’ Ultra-Low Pressure: 85 kPa ↓ Οƒ_z 48 kPa Design spec Tire & pressure Dimension Challenge

AI-generated project design illustration

πŸ“ Key Calculations

Subsoil Stress at 40 cm Depth

Οƒ_z = q Γ— I(z/b)
Result: 32 kPa
Below 35 kPa Australian compaction guideline limit

Effective Ground Pressure

Load / (Contact Area Γ— Tire Count)
Result: 48 kPa
Reduced from 89 kPa baseline

πŸ“Š Results

Drainage rate increased 27%, waterlogging events decreased by 41%, spray drift reduced via improved stability

πŸ’‘ Lessons Learned

  • β€’Dual spacing must be tuned to avoid stress superposition in layered soils
  • β€’Subsoil stress modeling requires stratified modulus inputs

βœ… Key Takeaways

  • 1Dual spacing must be tuned to avoid stress superposition in layered soils
  • 2Subsoil stress modeling requires stratified modulus inputs