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Negative pore pressure in clay or sand is developed due to __________

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in Geotechnical Engineering I by (102k points)
Negative pore pressure in clay or sand is developed due to __________

(a) Expansion on loading

(b) Over loading

(c) Loose structure

(d) Compaction

This question was posed to me in an internship interview.

My doubt is from Shear Strength of Cohesive Soil in division Shear Strength of Geotechnical Engineering I

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The correct answer is (a) Expansion on loading

Explanation: A negative pore pressure is developed when we apply load on a sample of clay or sand because both sand and clay tends to expand on loading.

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