Experiments with different envelope materials.

Badruddin; M.  Alamgir; Taj Ali Khan

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Experiments with different envelope materials.

Author(s)

Badruddin Agricultural Engineering Department, NWFP University of Engineering & Technology (UET), Peshawar, Pakistan

M. Alamgir Agricultural Engineering Department, NWFP University of Engineering & Technology (UET), Peshawar, Pakistan

Taj Ali Khan Agricultural Engineering Department, NWFP University of Engineering & Technology (UET), Peshawar, Pakistan

Abstract

The performance of different envelope materials around plastic drain tubes in different soils have been studied by using a tank and PVC pipes. Tests on gravel envelope, sock envelope, and one without filter were performed for each soil type. The parameters considered were discharge rate, amount of sediment accumulated in pipes and number of perforations chocked per pipe in each case. The relatives performance of envelopes to different soils were tested by statistical method known as ANOVA test. The least significant difference (LSD) test was used to detect pairwise differences between envelopes. Envelope material which was found best for each soil type was determined. The sock envelope performed well in discharging water from silty clay loam soil while limiting sediment discharge as compared with gravel envelope. To drain sandy soil, gravel envelope would be the best solution.

Publication Details

Page(s) 103-107

DOI DOI not available

Published Journal: Journal of Engineering and Applied Sciences, Volume: 9, Issue: 2, Year: 1990

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