Sediment Rentention Models Right On The Irrigation Channels

The role of irrigation is very important to increase agricultural production. Utilization of water through a good treatment system for water utilization is implemented effectively and efficiently. Sediment transport in irrigation can shorten the service life of irrigation networks, due to silting and decreasing capacity, making it difficult for water to reach the surface of the rice fields and irrigate rice fields. Various efforts have been made to reduce sediment transport in irrigation canals, one of which is commonly done is the manufacture of Sediment Retention Models (SRM). Nevertheless, the sediments continue to enter the irrigation canal in considerable amounts. So in operation and maintenance it requires a high enough cost for such sediment dredging Given the importance of a sediment- catcher building, special attention needs to be paid to this problem, among others, by creating a sediment- resistant model that has the ability to capture sediment well. In the hope of helping to precipitate sediment so as not to disrupt the function of the channel. The research will be conducted at the Civil Engineering Laboratory of Muhammadiyan University of Makassar. The purpose of the research is to know the nature of the flow that occurs in the sediment catcher building, to know the volume of basic sediment transport with the calculation directly and compare with the formula approach. The results showed that the larger volume of sediment flow velocity tended to narrow, from 0.57 m / dt; Vs: 0.0039 m(3) / s. to v: 0.16 m / s.; Vs: 0.0047 m(3) / s. Similarly, the smaller the volume of sediment flow velocity tends to expand from 1.4 m / dt; 0.0006 m(3) / dt to v: 1.0 m / dt; Vs: 0.0005 m(3) / s