Wicaksono, Rewin Alif Bagus (2022) Perencanaan Pondasi Abutment Jembatan Dan Perkuatan Timbunan Tanah Untuk Oprit Jembatan Di Jalan Tol Soloyogyakarta-Nyia Kulon Progo Seksi 1 Paket 1.1 STA 0+550 s/d STA 1+150. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Jalan Tol Trans Jawa merupakan Proyek Strategis Nasional (PSN) yang menghubungkan kota-kota di pulau Jawa dengan panjang ±1000 km. Salah satu jalan tol yang melintasi Kota Yogyakarta dan Solo yaitu Tol Solo-Yogyakarta-NYIA Kulon Progo dengan panjang ±96,57 km. Pada Seksi 1 Paket 1.1 terutama di STA 0+550 – STA 1+150 terdapat konstruksi jembatan, underpass, box culvert dan timbunan. Panjang konstruksi jembatan Ngasem yaitu ±200 m, 6 segmen dan terdapat 2 abutment yang menggunakan pondasi bored pile. Timbunan dibelakang abutment direncanakan setinggi 8 m disebelah utara dan 6 m disebelah selatan dengan kemiringan lereng 1:2. Selain itu, terdapat 5 box culvert dan 1 underpass jalan desa. Perencanaan konstruksi jalan tol tersebut didasarkan pada data tanah, dimana jenis tanah pada kedalaman 0 – 4 m adalah lempung berlanau. Sedangkan, jenis tanah pasir kelanauan berkerikil dengan tekstur sangat padat dan kaku terdapat pada kedalaman 4 m – 40 m. Muka air tanah terletak pada kedalaman 2,4 m dari muka tanah. Adanya kondisi tanah yang sangat baik maka dalam studi ini dilakukan efisiensi desain dengan perencanaan alternatif pada pondasi abutment dan perencanaan perkuatan timbunan oprit yang dibandingkan dengan kondisi eksisting agar diperoleh perencanaan yang aman, dan lebih efisien. Dari hasil analisa perhitungan yang telah dilakukan pada sisi abutment sebelah utara, diperoleh bahwa untuk alternatif pondasi abutment utara jembatan Ngasem yang kuat, aman dan efisien yaitu pondasi sumuran dengan diameter 300 cm, sebanyak 4 buah dalam 1 abutment, jarak antar pondasi yaitu 9 m dan memiliki kedalaman dari dasar abutment sedalam 6 m dengan Q all SF=3 sebesar 15394.05 kN, sedangkan P max 1 pondasi yaitu 15088.60 kN dan kapasitas material sebesar 54946.37 kN. Selain itu, untuk total harga material pondasi sumuran D300 sebesar Rp486,894,208.21 sedangkan untuk pondasi eksiting D100 sebesar Rp1,945,179,734.83. Selanjutnya, mengenai alternatif timbunan pada oprit jembatan sisi utara yang paling efisien dari segi harga material perkuatan dan penggunaan lahan yaitu timbunan sisi tegak dengan material geotextile woven T ult 200 kN/m berjumlah 16 lapis geotextile, dengan total kebutuhan per 100 m jalan yaitu sebanyak 30526 m2 geotextile dan kebutuhan lahan sebesar 2981 m2, sehingga total harga yang dibutuhkan sejumlah Rp10,057,199,000.00. Sedangkan, untuk total harga material perkuatan dan lahan pada timbunan eksisting membutuhkan Rp20,862,116,000.00.
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The Trans Java Toll Road is a National Strategic Project (PSN) that connects cities on the island of Java with a length of ± 1000 km. One of the toll roads that cross the cities of Yogyakarta and Solo is the Solo-Yogyakarta-NYIA Kulon Progo Toll Road with a length of ±96.57 km. In Section 1 of Package 1.1, especially in STA 0+550 – STA 1+150, there are construction of bridges, underpasses, box culverts and embankments. The length of the Ngasem bridge construction is 200 m, 6 segment and there are 2 abutments that use bored pile foundations. The embankment behind the abutment is planned as high as 8 m in the north and 6 m in the south with a slope of 1:2. In addition, there are 5 box culverts and 1 village road underpass. The toll road construction planning is based on soil data, where the type of soil at a depth of 0-4 m is silty clay. Meanwhile, the type of gravel silty sand with a very dense and stiff texture is found at a depth of 4 m – 40 m. The groundwater table is located at a depth of 2.4 m from the ground. The existence of very good soil conditions, in this study, design efficiency will be carried out with alternative planning on abutment foundations and planning for reinforcement of the oprite embankment compared to the existing conditions in order to obtain a safer and more efficient plan. From the results of the analysis of calculations that have been carried out on the north side of the abutment, it was found that for an alternative to the north abutment foundation of the Ngasem bridge which is strong, safe and efficient, namely the well foundation with a diameter of 300 cm, as many as 4 pieces in 1 abutment, the distance between the foundations is 9 m and has a depth of 6 m from the base of the abutment with Q all SF = 3 of 15394.05 kN, while P max 1 foundation is 15088.60 kN and material capacity of 54946.37 kN. In addition, the total price for the D300 well foundation material is Rp. 486,894,208.21, while for the existing D100 foundation, it is Rp. 1,945,179,734.83. Furthermore, regarding the alternative embankment on the north side of the bridge oprit which is the most efficient in terms of the price of reinforcement material and land use, namely the upright side embankment with T ult 200 kN/m woven geotextile material totaling 16 layers of geotextile, with a total requirement per 100 m of road which is 30526 m2 of geotextile and land requirements of 2981 m2, so the total price required is Rp. 10,057,199,000.00. Meanwhile, the total price of reinforcement materials and land for the existing embankment requires Rp. 20,862,116,000.00.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Pondasi Sumuran, Timbunan Sisi Tegak, Bored Pile, Geotextile, Sumuran Foundation, Upright Side Embankment. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA775 Foundations. |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 12 Jan 2026 02:07 |
| Last Modified: | 12 Jan 2026 02:07 |
| URI: | http://repository.its.ac.id/id/eprint/129460 |
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