EVALUATION OF THREE SYNTHETIC DRAIN ENVELOPE'S FILTER PERFORMANCE AS COMPARED WITH CONVENTIONAL ENVELOPE (LABORATORY EXPERIMENT)

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KARIMI B.; PARSINEJAD M.; HASSANOGHLI A.; LIAGHAT A.

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Journal: Iranian Journal of Irrigation and Drainage Year:2008 | Volume:2 | Issue:2 Page(s): 81-92

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Title

EVALUATION OF THREE SYNTHETIC DRAIN ENVELOPE'S FILTER PERFORMANCE AS COMPARED WITH CONVENTIONAL ENVELOPE (LABORATORY EXPERIMENT)

Author(s)

KARIMI B. | PARSINEJAD M. | HASSANOGHLI A. | LIAGHAT A. | Issue Writer Certificate

Keywords

DRAINAGE ENVELOPEQ3

GEOTEXTILEQ2

PERMEAMETERQ2

GRADIENT RATIOQ2

Abstract

Continued usage of gravel envelope for drain pipes is encountered with difficulties such as preparing, transport and unjustified cost efficiency. Therefore, use of GEOTEXTILE filters which cost less and have less problems are being more widely recommended. This study deal with the evaluation of three synthetic drain envelope's filter performance as compared with conventional envelope. First, soils samples were collected from 2 different region from the study site. According to the physical and chemical evaluation of soil samples they were basically the same. Therefore the study was done on a single sample. Next, 3 types of GEOTEXTILE filters of pp450, pp700, pp900 which has been found suitable were selected. A gravel envelope according to USBR standard was also selected. A standard PERMEAMETER was used at 4 different hydraulic head (25, 50, 75, 100 cm) for the test. Variation in drain flow rate, hydraulic conductivity, gradiant ratio, relative hydraulic conductivity were measured. Based on the results of this study we conclude that none of the filters (gravel or GEOTEXTILE) were susceptible to clogging. Drain flow rate through the gravel envelope were nearly twice as much as the flow through GEOTEXTILE filters. The pp450 filter were to have the best performance and is recommended for this situation. GEOTEXTILE filters were found to be more appropriate for cases where water table is to be lowered slower to maintain more moisture storage.

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APA: Copy

KARIMI, B., PARSINEJAD, M., HASSANOGHLI, A., & LIAGHAT, A.. (2008). EVALUATION OF THREE SYNTHETIC DRAIN ENVELOPE'S FILTER PERFORMANCE AS COMPARED WITH CONVENTIONAL ENVELOPE (LABORATORY EXPERIMENT). IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 2(2), 81-92. SID. https://sid.ir/paper/131446/en

Vancouver: Copy

KARIMI B., PARSINEJAD M., HASSANOGHLI A., LIAGHAT A.. EVALUATION OF THREE SYNTHETIC DRAIN ENVELOPE'S FILTER PERFORMANCE AS COMPARED WITH CONVENTIONAL ENVELOPE (LABORATORY EXPERIMENT). IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2008;2(2):81-92. Available from: https://sid.ir/paper/131446/en

IEEE: Copy

B. KARIMI, M. PARSINEJAD, A. HASSANOGHLI, and A. LIAGHAT, “EVALUATION OF THREE SYNTHETIC DRAIN ENVELOPE'S FILTER PERFORMANCE AS COMPARED WITH CONVENTIONAL ENVELOPE (LABORATORY EXPERIMENT),” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 2, no. 2, pp. 81–92, 2008, [Online]. Available: https://sid.ir/paper/131446/en

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