RAS - HEC تصميم مصارف لمياه الامطار بمدينة بربر وعمل نموذج هيدروليكي باستخدام برنامج

Abstract

Abstract: This research aims to plan and design rainwater drains for the city of Berber and make a hydraulic model for the drains, where the Google Earth program was used to plan and determine the drains’ paths, slope, and it was used in calculating the length, the longitudinal the rational transverse slope and the surface area for each drain. Also, the maximum discharge for each drain was calculated using the formula, and the drains were designed using the Manning equation to calculate the dimensions of each drain, where the drain swere divided into five drains covering the northern, eastern and western parts of the Berber city market, namely (D - , D - , D , D , D , D ) and the drainage values were (0.42, 0.53, 0.28, 0.79, 0.19, 1.93), respectively, and it was found that the maximum drainage value was 1.93 in the fifth drain and the lowest value was 0.19 in the fourth drain, and the width was for the two drains(D1-1, D4 ) its value is 0.6m and the width for drains (D1-2, D2, D3, D5) is 1.2m. A hydraulic model was also made using the HEC-RAS program to ensure the capacity of the drains to restain water and not to deviate from the specified path.