Perencanaan Timbunan di Belakang Pangkal Jembatan sebagai Alternatif Pengganti Slab on Pile (Studi Kasus Jalan Lingkar Luar Barat Surabaya)

Putri, Anugradia Nela (2020) Perencanaan Timbunan di Belakang Pangkal Jembatan sebagai Alternatif Pengganti Slab on Pile (Studi Kasus Jalan Lingkar Luar Barat Surabaya). Other thesis, Institut Teknologi Sepuluh Nopember.

Text 03111640000074-Undergraduate_Thesis.pdf - Accepted Version Download (11MB)

Abstract

Jalan Lingkar Luar Barat (JLLB) merupakan salah satu jalan yang telah direncanakan untuk mengatasi permasalahan kemacetan di Kota Surabaya, di mana memiliki panjang 19,8 km dengan lebar 55 m yang menghubungkan Lakarsantri sampai Romokaliasri. JLLB memiliki dua konstruksi, yaitu jembatan (girder bridge) dan slab on pile. Konstruksi jembatan dibangun memotong pemukiman penduduk, jalan, dan rel kereta api; dengan kondisi yang memiliki NSPT sedang. Konstruksi slab on pile dibangun memotong persawahan; dengan kondisi tanah yang memiliki NSPT kecil. Kontruksi JLLB merupakan konstruksi yang cukup penting maka dari itu diperlukan alternatif perencanaan konstruksi lainnya agar lebih efisien dan aman terhadap perilaku tanah. Selain itu, perlu diperhatikan juga mengenai overall stability timbunan terhadap pangkal jembatan.
Hasil dari perencanaan diketauhi bahwa tanah pada slab on pile dekat pangkal jembatan merupakan tanah lempung dengan pemampatan besar dan lama sehingga diperlukan perbaikan tanah dasar dan perkuatan karena daya dukung tanah lempung yang rendah. Alternatif timbunan tegak dengan perbaikan tanah dasar vacuum dan perkuatan freyssisol lebih ideal dan efisien dibandingkan kontruksi slab on pile dari segi biaya volume materialnya. Pada evaluasi pangkal jembatan baik overall stability dan pengecekan gaya lateral terhadap tiang pancang sudah memenuhi apabila konstruksi slab on pile diganti dengan kosntruksi timbunan.
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Outer West Ring Road (OWRR) is one of many roads that designed for solving some traffic problems in Suraaya, it has 19,8 km length and 55 m width that connected Lakasantri and Romokaliasri. OWRR or JLLB has two kind of constructions, girder bridge and slab on pile. The bridge construction is built crossing the housing, roads, and even railway; the NSPT of soil is medium. Slab on pile is built crossing the rice field; the NSPT of soil is low. OWRR is most likely important, because of that the construction need some alternatives that is more efficient, ideal, dan safe from the condition of soil. Besides, the study location is the approach from bridge to girder or otherwise, the construction is need more attention for its overall stability of embankment o the abutment.
From the analysis, the settlement that happens at the approach of the bridge is very significant and caused differential settlement in the future. Because of that condistions, the settlement needs to be eliminated with preloading of surcharge method or vacuum combined with vertical drain. Soil capacity of clay is very low, so the reinforcement is needed too. After the preloading and reinforcement are designed, the most ideal and efficient altervative can be choosen and will be compared to slab on pile. From the material costs, non-slope embankment that designed with preloading with vacuum method and freyssisol for the reinforcement is the most ideal and efficient than the other embankment alternatives. The choosen embankment alternative is more ideal and efficient than slab on pile. For the abutment, the existing design can be used even though the slab on pile is replaced to embankment construction.

Item Type:	Thesis (Other)
Additional Information:	RSS 625.7 Put p-1
Uncontrolled Keywords:	Embankment, Freyssisol, Geotextile, Outer West Ring Road (OWRR), Micropile
Subjects:	T Technology > T Technology (General) > T58.8 Productivity. Efficiency T Technology > TA Engineering (General). Civil engineering (General) > TA455.S6 Soil (Materials of engineering and construction) T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Anugradia Nela Putri
Date Deposited:	28 Apr 2023 08:15
Last Modified:	28 Apr 2023 08:15
URI:	http://repository.its.ac.id/id/eprint/73615

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