KAJIAN PROTEKSI GERUSAN DI HILIR KOLAM OLAKAN BENDUNG TIPE USBR-II
| dc.contributor.author | Abdurrosyid, Jaji | |
| dc.contributor.author | Wibowo, Gurawan Jati | |
| dc.date.accessioned | 2012-05-05T01:49:33Z | |
| dc.date.available | 2012-05-05T01:49:33Z | |
| dc.date.issued | 2006-03 | |
| dc.identifier.citation | Abdurrosyid, Jaji, 2005, Gerusan di Hilir Kolam Olak Bendung, Jurnal Dinamika Teknik Sipil, Volume 5, Nomor 2, Hal 73-79, Jurusan Teknik Sipil, Universitas Muhammadiyah Surakarta, Surakarta. Breusers, H.N.C. and Raudkivi, A.J., 1991, Scouring, IHAR Hydraulic Structure Design Mannual, A.A. Balkema, Rotterdam. Chow, V.T., 1985, (ed. Suyatman, dkk.), Hidraulika Saluran Terbuka, Pen. Erlangga, Jakarta. Farhoudi, J. dan Smith, K.V.H., 1982, Time Scale For Scour Downstream of Hydraulic Jump, Journal of the Hydraulics Division, Vol. 108, No. HY 10, Am. Soc. Civ. Engrs., pp. 1147-1162. Farhoudi, J. dan Smith, K.V.H., 1985, Local Scour Profiles Downstream of Hydraulic Jump, Journal of the Hydraulics Research, Vol. 23, No. 4, Am. Soc. Civ. Engrs., pp. 343-358 Hoffmans, G.J.C.M. and Verheij, 1997, Scour Manual, A.A. Balkema, Rotterdam. Hoffmans, G.J.C.M. and Pilarczyk, K.W., 1995, Local Scour Downstream of Hydraulic Structures, Journal of Hydraulic Engineering, Vol 121, No. 4, Am. Soc. Civ. Engrs., pp. 326-340. Kumar, D., et al.,1982, Flow Under Weir On Scoured Bed, Journal of the Hydraulics Division , Vol 108, No. HY 4, Am. Soc. Civ. Engrs., pp. 529-543. Mays, L.W.,1999, Hydraulic Design Handbook, McGraw-Hill, New York, USA. Mohamed, M.S. dan McCorquodale, J.A., 1992, Short Term Local Scour, Journal of Hydraulic Research, Vol 30, No. 5, Am. Soc. Civ. Engrs., pp. 685-699 Raju, Ranga K.G., 1986, (ed. Yan Piter Pangaribuan), Aliran Melalui Saluran Terbuka, Pen. Erlangga, Jakarta. | en_US |
| dc.identifier.issn | 1907-4026 | |
| dc.identifier.uri | http://hdl.handle.net/11617/1377 | |
| dc.description.abstract | In the downstream of a weir, especially in stilling basin, there is a phenomenon called hydraulic jump caused by flow change from supercritical flow to sub critical flow. The hydraulic jump in weir stilling basin causes bed scour, particularly in the downstream of weir that is not protected. Therefore, laboratory study of scour and its countermeasure in the downstream of weir is required. This study was conducted at Hydraulic Laboratory of Surakarta River Research Centre using recirculation flume. The recirculation flume dimensions were : length = 24 m; width = 49 cm; and height = 60 cm. The bed material of recirculation flume was fine sand (diameter of sieve = 2 mm) with 20 cm thickness layered along the flume. The slope of flume was 0.004, and it was assumed that there was no sediment load in the upstream of weir. This study used weir model USBR-II. The model was placed about ± 9 m from the upstream. The experiment was conducted using 4 discharge variation running and 3 protection variation running. The result shows that the maximum scour depends on flow velocity, shear velocity, and flow height in the downstream of stilling basin. In addition, it is also affected by Reynold number and gravitation (as Froude number). These parameters are interdependent significantly. Furthermore, there is significant scour reduction in the downstream of stilling basin which is protected using either ¼ Lmaks rip-rap, ½ Lmaks rip-rap, and Lmaks rip-rap. In addition, protection using Lmaks length rip-rap can protect scour with smallest scour depth. However, scour is still happened in the downstream of stilling basin although there is protection along Lmaks. | en_US |
| dc.publisher | lppmums | en_US |
| dc.subject | hydraulic jump | en_US |
| dc.subject | scour depth | en_US |
| dc.subject | scour protection | en_US |
| dc.subject | rip-rap | en_US |
| dc.title | KAJIAN PROTEKSI GERUSAN DI HILIR KOLAM OLAKAN BENDUNG TIPE USBR-II | en_US |
| dc.type | Article | en_US |
