Advanced Journal of Agricultural Research ISSN: 2367-9816 Vol.  3(1), pp. 082-088, November, 2015.  © Advanced Scholars Journals

 Full length Research paper

Computation of Seepage Quantity in an Earthen Watercourse by SEEP/W Simulations Case Study: “1R Qaiser Minor” - Tando Jam-Pakistan

¹Imran Arshad*, ²Muhammed Muneer Baber, ³Asadullah Sarki

¹Agriculture Engineer, Star Services LLC, Al Muroor Road – Abu Dhabi, United Arab Emirates,

²Professor, Iwrem-Casw, Muet, Jamshoro, Pakistan,

³Asistant Professor, Department of Land & Water Management, FAE - SAU, Tandojam, Pakistan

*Corresponding author. E-mail: [email protected] 

Accepted 4 November, 2015

Abstract 

Various investigations of water losses of Pakistan water courses revealed that, most of water courses are improperly designed poorly maintained and carelessly operated. This results in considerable water logging and Salinity. In this research, the ability of the SEEP/W software was studied to estimate the seepage from earthen watercourse i.e. 1R Qaiser minor near Tando Jam. Seepage from five different sections was simulated with SEEP/W software and results were compared with experimental data collected by inflow-out flow and ponding method accordingly. Total discharge loss calculated by inflow-outflow method, ponding method, and SEEP/W simulations was 11.279%, 8.623%, and 8.722% respectively. The overall statistical analysis of all the research data i.e. RMSE, ME, R.E, and EF to evaluate the performance of the models are found to be 0.0265 LPS, 0.0170 LPS, 1.525% and 99.958% respectively (Table: 3.2). Hence, in contrast with different field analysis methods, SEEP/W software has a proper ability to simulate seepage from earthen watercourses however; the numerical models must be calibrated for local conditions.

Keywords: Seepage, watercourse,1R Qaiser minor, finite element modeling, SEEP/W, Geo-slope software