Alternatif Pemilihan Konstruksi Badan Jalan Ditinjau Dari Aspek Geoteknik - Studi Kasus Pembangunan Jalan Lingkar Utara Lamongan

Okadha, Henniko (2025) Alternatif Pemilihan Konstruksi Badan Jalan Ditinjau Dari Aspek Geoteknik - Studi Kasus Pembangunan Jalan Lingkar Utara Lamongan. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pembangunan Jalan Lingkar Utara Lamongan yang dibangun sebagai salah satu alternatif upaya mengurai kemacetan jalan nasional ruas Lamongan – Babat. Struktur perkerasan berada di atas tanah lanau lunak hingga medium di kedalaman hingga 26meter sehingga diperlukan metode perbaikan tanah atau pemilihan struktur pondasi yang tepat agar dapat memberikan layan umur perkerasan jalan yang mampu bertahan lama mengingat trase jalan merupakan jalur sibuk penghubung Kota Surabaya dengan Kota Tuban. Penelitian ini bertujuan untuk membandingkan penanganan tanah dasar berupa perbaikan tanah menggunakan Prefabricated Vertical Drain (PVD) dengan surcharge/preloading, perkuatan struktur dengan slab on pile/piled slab serta penggunaan timbunan mortar busa sebagai pengganti timbunan pilihan pada tanah lunak. Kombinasi model berupa variasi panjang PVD (19,5 m; 13 m dan 6,5 m), variasi kombinasi mortar busa dan timbunan pilihan serta variasi diameter tiang pile slab (40 cm, 50 cm dan 60 cm). Hasil analisa Plaxis2D menunjukkan bahwa semakin panjang PVD yang terpasang pada tanah kompresibel maka semakin besar penurunan yang dihasilkan dengan waktu yang lebih singkat. Sedangkan pada mortar busa menunjukkan bahwa semakin tinggi timbunan mortar maka semakin kecil penurunan yang terjadi. Semakin besar diameter tiang pancang tidak diikuti dengan pengurangan penurunan yang terjadi.
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The construction of the Lamongan North Ring Road, which was built as an alternative effort to alleviate congestion on the Lamongan - Babat section of the national road. The pavement structure is on soft to medium silt soil at a depth of up to 26 meters so that it requires a method of soil improvement or selection of the right foundation structure in order to provide a pavement service life that can last a long time considering that the road route is a busy route connecting Surabaya City with Tuban City. This study aims to compare the handling of subgrade soil in the form of soil improvement using Prefabricated Vertical Drain (PVD) with surcharge, strengthening the structure with slab on pile or piled slab and the use of foam mortar embankment as a substitute for preferred embankment on soft soil. Model combinations included variation of PVD length (19.5 m; 13 m and 6.5 m), variation of combination of foam mortar and surcharge and variation of slab pile diameter (40 cm, 50 cm and 60 cm). The results of the Plaxis2D analysis showed that the longer the PVD installed in the compressible soil, the greater the settlement produced with a smaller time. On the other hand, the foam mortar showed that the higher the mortar pile, the smaller the settlement. The larger the pile diameter is not followed by a reduction in settlement.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	PVD, mortar busa, pile slab, penurunan tanah, foamed mortar, pile slab, settlement
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization T Technology > TA Engineering (General). Civil engineering (General) > TA780 Piles and pile-driving T Technology > TE Highway engineering. Roads and pavements > TE250.P475 Pavements--Design and construction--Estimates.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis
Depositing User:	Henniko Okadha
Date Deposited:	25 Jan 2025 03:06
Last Modified:	25 Jan 2025 03:06
URI:	http://repository.its.ac.id/id/eprint/116844

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