Lec 4 - Three Phase System of Soil Explained | Volume & Weight Relationships | GATE Civil Engineering

About this PDF

Welcome to **Civil Tutor – GATE Exam Notes!** In this lecture, we explain the **Three-Phase System of Soil in Soil Mechanics** with clear diagrams, important formulas, and easy-to-understand explanations for GATE Civil Engineering preparation. 📚 **Topics Covered:** 🔹 Constituents of Soil Mass - Soil solids, water, and air - Three phases of soil 🔹 Three-Phase Diagram - Volume of solids (Vs) - Volume of water (Vw) - Volume of air (Va) - Volume of voids (Vv) - Total volume (V) 🔹 Volume Relationships - Vv = Vw + Va - V = Vs + Vv - V = Vs + Vw + Va 🔹 Weight Relationships - Weight of soil solids (Ws) - Weight of water (Ww) - Total weight of soil mass (W = Ws + Ww) 🔹 Special Cases of the Three-Phase System - Fully dry soil – Two-phase system - Fully saturated soil – Two-phase system - Partially saturated soil – Three-phase system 🎯 **Who Should Watch?** ✅ GATE Civil Engineering aspirants ✅ Geotechnical Engineering students ✅ Civil Engineering undergraduate students ✅ Students preparing for university examinations Subscribe to **Civil Tutor** for GATE exam notes, Soil Mechanics concepts, important formulas, and Civil Engineering lectures. 👍 Like | 💬 Comment | 🔔 Subscribe #SoilMechanics #ThreePhaseSystem #GATECivilEngineering #GeotechnicalEngineering #CivilEngineering #SoilMechanicsNotes #CTCivilTutor

What you get

Details

Format

PDF format

Language

English

Size

1.5 MB

Delivery

Download to your device, instantly after payment

Access

Lifetime — buy once, open any time

Sold by

siva sankar

Published

27 October 2026