Earth Pressure Calculator Skill Purpose The Earth Pressure Calculator Skill determines lateral earth pressures on retaining structures using Rankine, Coulomb, and seismic methods for design of retaining walls and basement walls. Capabilities - Active earth pressure (Rankine, Coulomb) - Passive earth pressure - At-rest earth pressure - Surcharge effects - Layered soil conditions - Seismic earth pressure (Mononobe-Okabe) - Sloping backfill effects - Water pressure considerations Usage Guidelines When to Use - Designing retaining walls - Analyzing basement walls - Evaluating excavation support -…