Yanuar, Mohammad Iqbal (2024) Analisis Perilaku Dan Stabilisasi Kimiawi Timbunan Yang Menggunakan Tanah Galian Setempat Berplastisitas Tinggi Pada Proyek Jalan Tol IKN Segmen 3A Karangjoang - KKT Kariangau. Masters thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 6012221044-Master_Thesis.PDF]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
6012221044-Master_Thesis.PDF - Accepted Version Restricted to Repository staff only until 1 April 2026. Download (18MB) | Request a copy |
Abstract
Pembangunan IKN Nusantara (Ibu Kota Baru Indonesia Nusantara) pada tahap I, yaitu 2022-2024, berfokus pada pembangunan infrastruktur dasar. Salah satu pembangunan infrastruktur yang saat ini sedang berjalan adalah Jalan Tol IKN Segmen 3A Karangjoang - KKT Kariangau (STA 14+000 - STA 25+909) dan terhubung dengan Jalan Tol Balikpapan - Samarinda. Pembangunan ini akan menambah kembali aset infrastruktur Indonesia, khususnya Kementerian Pekerjaan Umum dan Perumahan Rakyat. Salah satu pekerjaan utama dalam pembangunan jalan tol ini yaitu pekerjaan galian dan timbunan, kebutuhan material timbunan yang banyak menjadi masalah tersendiri sehingga tanah galian sebisa mungkin diupayakan dapat menjadi tanah timbunan dengan tambahan perkuatan geotekstil stabilisator kelas 1. Pemanfaatan tanah hasil galian untuk dijadikan material timbunan menjadi topik penelitian pada pembahasan tesis ini. Upaya pencampuran tanah hasil galian dengan material fly ash dan bottom ash yang bersumber dari PLTU Balikpapan merupakan salah satu bentuk percobaan stabilisasi tanah. Material fly ash yang telah diuji XRF (X-Ray Fluorescence) terklasifikasi sebagai fly ash kelas F. Dari hasil uji kepadatan ringan (standard proctor) pencampuran tanah hasil galian tersebut dengan material fly ash dan bottom ash, didapatkan material campuran dengan berat kering maksimum terbesar terdapat pada material campuran tanah + FA 10% (fly ash kadar 10%) dengan nilai γd max 1,693 gr/cm3, material campuran tanah + BA 15% (bottom ash kadar 15%) dengan nilai γd max 1,812 gr/cm3 dan material campuran tanah + FABA 10% (fly ash + bottom ash kadar 10%) dengan nilai γd max 1,691 gr/cm3. Tiga material campuran tersebut yang menjadi acuan pengujian berikutnya yaitu pengujian CBR soaked (rendaman) dengan pemeraman 0, 7 dan 14 hari. Berdasarkan hasil pengujian CBR soaked, nilai CBR soaked material campuran menunjukkan tren negatif dengan hasil dimana material campuran mendapatkan nilai yang lebih kecil dari nilai uji CBR soaked tanah hasil galian tanpa campuran. Terutama material campuran tanah + FABA 10% yang nilai CBR soaked nya terus menurun seiring lama pemeraman dilakukan. Hasil uji CBR soaked yang paling tinggi hanya didapatkan nilai CBR 6,013% dari campuran tanah + BA 15% tanpa pemeraman dan nilai paling rendah didapatkan nilai CBR 0,709% dari campuran tanah + FABA 10% pemeraman 14 hari. Hasil percobaan tersebut kemudian dimasukkan kedalam perhitungan overall stability dengan program bantu Plaxis 2D. Dari perhitungan konstruksi timbunan dengan material timbunan yang menggunakan tanah hasil galian, tanah + FA 10%, tanah + BA 15% dan tanah + FABA 10% menunjukkan hasil yang stabil dan tidak mengalami keruntuhan. Walaupun demikian terkait dengan tren negatif yang terjadi pada saat pengujian CBR soaked yang dilakukan dan nilai CBR soaked itu rata – rata dibawah 6%, material campuran tetap tidak disarankan untuk digunakan.
=================================================================================================================================
The development of IKN Nusantara (Indonesia's New Capital City) in phase I, 2022-2024, focuses on basic infrastructure development. One of the infrastructure developments currently underway is the IKN Toll Road Segment 3A Karangjoang - KKT Kariangau (STA 14+000 - STA 25+909) that connected to the Balikpapan - Samarinda Toll Road. This development will add back to Indonesia's infrastructure assets, especially the Ministry of Public Works and Public Housing. One of the main works in the construction of this toll road is excavation and embankment work, the need for a lot of embankment material is a problem in itself so the excavated soil as much as possible is sought to become embankment soil with additional reinforcement of geotextile stabilizers class 1. The Utilization of excavated soil to be used as backfill material is the research topic of this thesis. Efforts to mix excavated soil with fly ash and bottom ash materials sourced from Balikpapan steam power plant is one form of soil stabilization experiment. Fly ash material that has been tested by XRF (X-ray fluorescence) is classified as class F fly ash. From the results of the density test (standard proctor) of mixing the excavated soil with fly ash and bottom ash materials, it was found that the mixture material with the largest maximum dry density was found in the soil mixture material + FA 10% (fly ash content 10%) with a γd max value of 1.693 gr/cm3, soil mixture material + BA 15% (bottom ash content 15%) with a γd max value of 1.812 gr/cm3 and soil mixture material + FABA 10% (fly ash + bottom ash content 10%) with a γd max value of 1.691 gr/cm3. The three mixed materials are the reference for the next test, namely soaked CBR testing with 0, 7 and 14 days of curing. Based on the results of the soaked CBR test, the soaked CBR value of the mixed material shows a negative trend with results where the mixed material gets a smaller value than the soaked CBR test value of the excavated soil without a mixture. Especially the soil + 10% FABA mixture material whose soaked CBR value continues to decrease as the length of the curing is carried out. The highest soaked CBR test result was only obtained at 6.013% from soil mixture + BA 15% without curing and the lowest value was obtained at 0.709% from soil mixture + FABA 10% with curing for 14 days. The experimental results were then entered into the calculation of overall stability with the Plaxis 2D auxiliary program. From the calculation of embankment construction with embankment material using excavated soil, soil + FA 10%, soil + BA 15%, and soil + FABA 10% showed stable results and did not collapse. However, due to the negative trend that occurred during the soaked CBR test and the average soaked CBR value below 6%, the mixed material is still not recommended for use.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Nusantara Capital City, IKN Toll Road, Balikpapan, East Kalimantan, Infrastructure Asset, Soaked CBR, Embankment, Geotextile, Ibu Kota Negara Nusantara, Jalan Tol IKN, Balikpapan, Kalimantan Timur, Aset Infrastruktur, CBR Soaked, Timbunan, Geotekstil, Overall Stability |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Mohammad Iqbal Yanuar |
| Date Deposited: | 06 Feb 2024 06:21 |
| Last Modified: | 06 Feb 2024 06:21 |
| URI: | http://repository.its.ac.id/id/eprint/106255 |
Actions (login required)
 |
View Item |