@thesis{thesis,
		author={Hifdhiyatul  Muthoharoh},
		title ={Analisa Variasi Sudut Pemasangan Krib Permeabel dan Semi Permeabel Terhadap ALiran SUngai (Uji Laboratorium)},
		year={2022},
		url={http://repository.undar.ac.id/id/eprint/2416/},
		abstract={One of the ways to overcome the damage that occurs to the embankment due to changes in river morphology is the installation of cribs. The purpose of the experimental test was to determine the variations in the angle of installation of permeable and semi-permeable cribs that were effectively used. The test was carried out with 8 variations models, namely Model I (original channel without crib), Model II (damaged channel without crib), Model III-A (90° permeable crib), Model III-B (55° permeable crib), Model III- C (125° permeable crib), Model IV-A (90° semi-permeable crib), Model IV-B (55° semi permeable crib), and Model IV-C (125° semi-permeable crib). The results showed that the type of crib and the angle of its installation had an effect on the speed and flow pattern that occurred. The flow velocity before using the crib in Model I and Model II increased with an average value of 0.4620 m/s and 0.5260 m/s, while the flow velocity decreased in Model III-A by 0.4316 m/s. , Model III-B is 0.4996 m/s, Model III-C is 0.4494 m/s, Model IV-A is 0.4132 m/s, Model IV-B is 0.4726 m/s and Model IV-C of 0.4608 m/s. Based on the experimental results, the most effective permeable crib is Model III-B, while for semi-permeable crib is Model IV-B.}
		}