Evaluasi dan Perencanaan Perbaikan Perkuatan Bokong Semar dan Saluran Drainase Studi Kasus: Bokong Semar Jembatan Anjin Jalan Tol Probolinggo-Banyuwangi Seksi 1 STA -0+832

Sa'idah, Azzah Abiyyu (2026) Evaluasi dan Perencanaan Perbaikan Perkuatan Bokong Semar dan Saluran Drainase Studi Kasus: Bokong Semar Jembatan Anjin Jalan Tol Probolinggo-Banyuwangi Seksi 1 STA -0+832. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Bokong semar Jembatan Anjin pada Jalan Tol Probolinggo-Banyuwangi Seksi 1 STA -0+832 terletak di Kecamatan Gending, Kabupaten Probolinggo, Jawa Timur. Pada masa pemakaiannya, terdapat kerusakan dan kelongsoran pada struktur bokong semar yang dan serta saluran drainase di samping bokong semar. Tugas akhir ini bertujuan untuk mengetahui penyebab kerusakan dan kelongsoran pada bokong semar dan merencanakan perbaikan perkuatan existing struktur bokong semar yang lebih efektif dan efesien. Metode yang dilakukan meliputi analisis kondisi existing pada dinding penahan tanah, struktur bokong semar, dan saluran drainase. Dari hasil analisis didapatkan bahwa pada kondisi muka air tanah tinggi maupun rendah, timbunan bokong semar dan dinding penahan tanah tidak aman terhadap kelongsoran. Perencanaan perbaikan perkuatan dilakukan dalam dua kondisi yaitu pada muka air tanah rendah dengan menggunakan drainase saluran U-Ditch 30 cm x 30 cm, diperlukan dinding penahan tanah dengan lebar 1,17 m dan geotextile sebanyak 6 lapis struktural dengan total biaya sebesar Rp310,050,800.00. Pada perencanaan kedua kondisi muka air tanah tinggi tanpa saluran drainase diperlukan dinding penahan tanah dengan lebar 1,17 m dengan tambahan spun pile D30 1 buah dan geotextile sebanyak 7 lapis struktural dengan total biaya sebesar Rp316,392,000.00. Dari kedua perencanaan tersebut, dipilih perencanaan pertama menggunakan saluran drainase, dinding penahan tanah, dan geotextile dengan mempertimbangkan perkuatan yang efektif dan biaya yang lebih efesien.
Kata kunci : Bokong Semar, Dinding Penahan Tanah, Geotextile, Saluran Drainase, Slope Protection, Spun Pile.
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The Anjin Bridge abutment on the Probolinggo-Banyuwangi Toll Road Section 1 STA -0+832 is located in Gending District, Probolinggo Regency, East Java. During its use, damage and landslides occurred on the retaining wall structure and the drainage channel next to the retaining wall. This final project aims to determine the causes of damage and landslides on the retaining wall and to plan more effective and efficient repairs to strengthen the existing retaining wall structure. The methods used include analyzing the existing conditions of the retaining wall, embankment structure, and drainage channel. The analysis results show that in both high and low groundwater conditions, the embankment and retaining wall are not safe from landslides. The reinforcement improvement plan was carried out under two conditions, namely at low groundwater levels using a 30 cm x 30 cm U-Ditch drainage channel, requiring a 1.17 m wide retaining wall and 6 layers of structural geotextile with a total cost of IDR 310,050,800.00. In the second plan for high groundwater conditions without drainage channels, a retaining wall with a width of 1.17 m is required with the addition of one D30 spun pile and 7 layers of structural geotextile with a total cost of IDR 316,392,000.00. During its period of use, damage and landslides occurred in the structure of the embankment and the drainage channel beside the embankment. Task From the two plans, the first plan was chosen, which used a drainage channel, retaining wall, and geotextile, taking into consideration effective reinforcement and more efficient costs.
Keywords : Bokong Semar, Drainage Channel, Geotextile, Retaining Wall, Slope Protection, Spun Pile.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Bokong Semar, Drainage Channel, Geotextile, Retaining Wall, Slope Protection, Spun Pile. Bokong Semar, Dinding Penahan Tanah, Geotextile, Saluran Drainase, Slope Protection, Spun Pile.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization T Technology > TA Engineering (General). Civil engineering (General) > TA760+ Retaining walls T Technology > TE Highway engineering. Roads and pavements > TE215 Drainage
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Azzah Abiyyu Sa'idah
Date Deposited:	23 Jan 2026 07:22
Last Modified:	23 Jan 2026 07:22
URI:	http://repository.its.ac.id/id/eprint/130226

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