Vol. 7, Special Issue 6 (2019)
Planning and design of surface drainage system for Jhillichaur, Pusa farm, Samastipur, Bihar
Author(s): Shuchi Kumari, Indu Bhushan Bhagat, BK Yadav and Shankar Yadav
Abstract: Waterlogging in an agricultural field is the one of major causes of crop failure. The problem of waterlogging in chaur land is attributed to inadequate provision of outlet. The natural drainage channels have become sluggish owing to mild slope and lack of due care and maintenance. The present study was designed to evaluate the drainage coefficient of waterlogged area of RPCAU, Pusa farm.In order to estimate the maximum rainfall, probability analysis was done by Weibull’s method. The maximum rainfall at seventy percent probability level was found to be 88.35 mm, 111.11 mm, 126.21 mm, 148.41mm, 164.52 mm, 175.757 mm, 189.52 mmfor 1 to 7 consecutive days for the study area. The average pan evaporation for the month of June, July, August, September and October was 3.66 mm/day. Double ring infiltrometer was used for calculating infiltration rate of the soil. The average infiltration rate for 1 day, 2 days, 3 days, 4 days, 5 days, 6 days and 7 days were 0.68, 0.52, 0.41, 0.36, 0.32, 0.29 and 0.28 mm/h respectively. Study area was divided into three categories as upland, medium land and low land according to the elevation obtained from contour map of the area. The contour map was obtained with the help of software Google Earth, TCX Converter, Arc GIS and Global Mapper. The total area of Jhilli chaur was 12 ha. which was divided into two parts; Jhilli chaur-A and Jhilli chaur -B, having separate outlets. Seventh day’s drainage coefficient of Jhilli chaur- A and Jhilli chaur- B has been found to be 4.63 cm/day and 2.34 cm/day, respectively. It has been concluded from study that one lateral for Jhilli chaur-A and one lateral for Jhilli chaur- B was sufficient to drain excess water from the waterlogged field. Total volume of earth work was computed as 118.51 m3.
Pages: 348-350 | 419 Views 76 Downloads
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How to cite this article:
Shuchi Kumari, Indu Bhushan Bhagat, BK Yadav and Shankar Yadav. Planning and design of surface drainage system for Jhillichaur, Pusa farm, Samastipur, Bihar. International Journal of Chemical Studies. 2019; 7(6): 348-350.
