Geotechnical Engineering · Lesson 23 of 27
Unsaturated Soil Mechanics
How partly saturated soil holds water under tension, what matric suction ua - uw means, how to read a soil-water characteristic curve, how to size capillary rise with hc = 4 T cos(alpha) / (gamma_w d), how Bishop's equation sigma' = (sigma - ua) + chi(ua - uw) adds a suction term to the effective stress, and why wetting can collapse a loose soil.
15 min read · Super Ea
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