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____________________ is provided when large scale...

____________________ is provided when large scale stratification occurs.

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asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

____________________ is provided when large scale stratification occurs.

(a) Chimney drain

(b) Cut-off

(c) Relief wells

(d) Trenches

This question was addressed to me during an online interview.

Query is from Rock Fill Dams topic in chapter Earthen and Rock Fill Dams of Irrigation Engineering

irrigation engineering
earthen and rock fill dams
rock fill dams

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answered Nov 16, 2023 by Greg (106k points)

Correct option is (a) Chimney drain

The best explanation: A vertical filter (or inclined u/s or d/s) is placed along with the horizontal as to intercept the seeping water effectively in case of large stratification. This arrangement is called a chimney drain.

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