Question:medium

The effect of cohesion on a soil is to

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Remember Rankine's equations: \[ \sigma_a=K_a\gamma z-2c\sqrt{K_a} \] \[ \sigma_p=K_p\gamma z+2c\sqrt{K_p} \] Cohesion always reduces active pressure and increases passive pressure.

Updated On: Jul 23, 2026

Reduce both active and passive earth pressure intensities
Increase both active and passive earth pressure intensities
Reduce active earth pressure intensity but increase passive earth pressure intensity
Increase active earth pressure intensity but reduce passive earth pressure intensity

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The Correct Option is C

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