We know that, Active earth pressure P_a=K_aγ Z 2c√(K_a) Passive earth pressure P_p=K_pγ Z+2c√(K_p) Hence, cohesion decreases active earth pressure and incr ...

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Cohesion in s...

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Cohesion in soil

decrease active pressure and increase passive resistance

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decrease both active pressure and passive resistance

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increase the active pressure and decrease the passive resistance

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increase both active pressure and passive resistance

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Solution

The correct option is A decrease active pressure and increase passive resistance
We know that,

Active earth pressure

$P_{a} = K_{a} γ Z - 2 c \sqrt{K_{a}}$

Passive earth pressure

$P_{p} = K_{p} γ Z + 2 c \sqrt{K_{p}}$

Hence, cohesion decreases active earth pressure and increases passive earth pressure.

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Cohesion in soil

The correct option is A decrease active pressure and increase passive resistanceWe know that, Active earth pressure Pa=KaγZ−2c√Ka Passive earth pressure Pp=KpγZ+2c√Kp Hence, cohesion decreases active earth pressure and increases passive earth pressure.