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All Journal INOVTEK POLBENG CSID Journal of Infrastructure Development (CSID-JID) Jurnal Inovtek Seri Teknik Sipil dan Aplikasi (TekLA) Proceeding Applied Business and Engineering Conference TANJAK : Jurnal Pengabdian Kepada Masyarakat
Oni Febriani
Politeknik Negeri Bengkalis
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Journal : Proceeding Applied Business and Engineering Conference

 1 
PENGARUH KEMIRINGAN SEAWALL TERHADAP RUN UP GELOMBANG DI PANTAI INDAH SELATBARU KECAMATAN BANTAN Zulkarnain, Zulkarnain; Febriani, Oni; Lizar, Lizar
ABEC Indonesia Vol. 11 (2023): 11th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Abstract

Selatbaru Indah Beach is one of the tourist beaches in Bengkalis Regency, located in Bantan District, 22 km from Bengkalis City. This beach has sheet pile construction using geobag materials and Armor rock. Currently experiencing changes in the plaster structure with the slope of the previous structure was 1:3 changed to 1:5. This research is to find out which slope of the structure is more efficient in reducing run up and overtopping in the Selatbaru tourist beach area. This research method uses field observation methods with surveys of building conditions and wave and tidal data from other sources. Wave height data is 0.5 m with HWL 2.45 m, LWL 0.03 m, wave period is 2.7 seconds, freeboard height is 0.45 m now and 0.25 m after a sea level rise of 0.2 m from present condiition. The results of the analysis for the slope of 1:3 sheet plaster, the value of Irribaren is 1.58 and Ru/H is 1.7, so the run up value is 0.85 m and overtopping occurs, for the slope of sheet pile 1:5 the value of Irribaren is 1.58 and Ru/H is 0.95, so the run up value is 0.2 m and there is no overtopping. The slope of 1:5 is able to reduce run up from 0.85 m to 0.2 m by 76%. This is because the sloping side of the sheet pile towards the sea will reduce wave run up. Keywords: Seawall, run up, slope structure, overtopping
The Effect of Using Embankments and Modifying of Stepped Seawall Slope as Alternatives to Reduce over Topping at Selatbaru Beach Bengkalis Zulkarnain, Zulkarnain; Febriani, Oni; Lizar, Lizar
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Located in Selatbaru Village, about 25 km from the centre of Bengkalis City, Selatbaru beach has become afavourite destination for tourists who want to enjoy the beauty of nature while engaging in outdoor activities. At thatbeach, a stepped-type seawall has been constructed to prevent erosion and make it easier for visitors to enjoy the beach,such as going down to and coming up from the beach. The current situation is during high tide and strong winds, wavesrun up the top of the seawall, causing seawater to surge onto the land. This research will conduct experiments by creatinga prototype based on field survey data and laboratory scale, including the seawall dimensions, water level, and waveheight, with a scale ratio of 1:10. The experimental scenarios to be conducted in the laboratory a. Existing seawall slopeof 1:3 with embankment, b. Changing the seawall slope to 1:5, and c. Changing the seawall slope to 1:5 withembankment. The irregular wave height to be simulated in the laboratory is 0.8 meters. The experiment will be conductedto observe the response of the seawall structure to incoming waves and the over topping occurring on the seawallstructure. The results shows that the alternative of adding an embankment and using a 1:3 seawall slope, has already beenable to reduce over topping volume 40,74 %. For the second scenario, the over topping volume decreased by 77.78 %,while the third scenario reduced over topping by 100 %. The best scenario is the third with slope to 1:5 and added of embankment that will decrease volume overtopping up to 100 %.
Co-Authors Armada Armada Boby Rahman Boby Rahman Dedy Enda Enda, Dedi Enda Faisal Ananda Gunawan, Saroji Husnul Muttaqin Juli Ardita Pribadi Junaidi Junaidi Lizar Lizar, Lizar Noerdin Basir Pratama, Adrian Irnanda Suhendra Suhendra Wan Muhammad Faizal Zulkarnain Zulkarnain Zulkarnain Zulkarnain