Minimizing Embankment Slope of Rear Parts to Overcome Leakage

International Conference on Science and Innovated Engineering

工业技术（总论）;自然科学（总论）

Gani, Fauzi A.^1 ; Kurniati^1

Water Resources People - Civil Engineering Department, Politeknik Negeri Lhokseumawe, Indonesia^1

关键词: Embankment slopes;    High embankment;    Multiple source;    Natural disasters;    Security numbers;    Slope angles;    Slope method;    Steady seepage;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/536/1/012090/pdf
DOI  :  10.1088/1757-899X/536/1/012090

来源: IOP

【 摘 要 】

The surrounding area of the river Kr. Pandrah is an area that every five years' experience flooding. The biggest flood in 2006 has been classified as natural disasters and has destroyed public property around the area Pandrah. For that, we need a study to get an alternative to overcome. Based on the survey data and information from multiple sources and analysis of the existing condition in 2006 that the highest flood ± 0.60 m, using the HAC-RAS program obtained the largest discharge of 350 m3 / sec. River cross-section is modified into a compound with a wide cross-section of the river is still based on the existing width. The width of the left and right banks of 5 meters from the riverbank and the embankment crest width of 3 meters with a slope of 1: 1 Testing the stability of the embankment is done by using the program Geo-Slope method Bishop Grid and Radius way obtained a safety factor during the development of downstream 2.146, 2.143 upstream development, steady seepage 1.667 downstream, upstream of the steady seepage 1.183, 1.597 rapid drow down upstream and downstream rapid drow down 1,682, all the figures were below the standard security numbers. But after the biggest flood in 2016, the high embankment and duration of inundation occur above the initial predictions, so there is some point leak embankment. For further improvement can be made by reducing the slope angle of the back or make drainage embankment.