Nugroho, Ocvan Helmi (2018) Perencanaan Perbaikan Tanah Dasar dan Perkuatan Stabilitas Timbunan Jalan Tol Krian-Legundi-Bunder-Manyar STA 2+650 s.d 3+250. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tol Krian Legundi Bunder Manyar memiliki tinggi timbunan yang bervariasi dengan kedalaman tanah keras yang bervariasi pula, sehingga perlu direncanakan perbaikan tanah dasar dan perkuatan timbunan agar dapat menahan beban dan tidak terjadi kegagalan konstruksi seperti kelongsoran. Metode yang digunakan dalam Tugas Akhir ini adalah menggunakan Prefabricated Vertical Desain (PVD) dengan preloading sebagai upaya perbaikan tanah dasar serta Geotextile atau Micropile sebagai perkuatan stabilitas timbunan. Pre-loading berguna untuk memberikan tekanan pada tanah sehingga air dari dalam tanah dapat keluar dan tanah menjadi padat dan lebih kuat sedangkan PVD digunakan untuk mempercepat proses keluarnya air dari dalam tanah sehingga tanah memadat lebih cepat. Geotextile digunakan untuk menahan internal stability sehingga tanah tidak rawan longsor. Geotextile akan dipasang lapis demi lapis dengan tebal lapis yang sudah direncanakan dalam timbunan dengan panjang geotextile setiap lapisan harus memotong bidang longsor timbunan dengan panjang tertentu. Micropile berguna untuk menahan overall stability, sehingga tanah tidak rawan guling. Pemasangan micropile dilakukan setiap meter dengan pola bersilang dan kedalaman tiap micropile yang terpasang harus melewati bidang longsor timbunan sedalam bidang longsor Safety Factor yang direncanakan. Output yang didapat dari Tugas Akhir ini adalah formula lama waktu pemadatan dengan dan tanpa PVD serta kebutuhan geotextile atau micropile pada timbunan dengan ketinggian antara 4 meter hingga 14 meter dengan kedalaman tanah keras di lapangan.=========================================================Krian-Legundi-Bunder-Manyar Highway has various piles and has various height of hard soil. It is necessary to repair the base ground and strengthen the slope to withstand the loads and to avoid construction failures such as landslides. The method employed in this Final Project was Prefabricated Vertical Design (PVD) with pre-loading to repair the base ground and Geotextile or Micropile to strengthen the stability of the slope. 'Pre-loading' was used to put pressure on the ground so water from the soil can come out and the ground will be solid and stronger, while PVD was used to speed up the process of water discharge to the ground will solids faster. Geotextile was used to hold the internal stability to avoid landslides. Geotextile will be installed layer by layer. The thickness of each layer has already planned and the length of each geotextile must cut through the landslide surfaces with the certain length. Micropile was used to hold the overall stability to avoid the ground rolled over. The micropile was installed in each meter with crossed pattern. The height of each micropile must cut through the landslide surface as deep as the planned Safety Factor of the landslide surface. The output obtained from this Final Project is the formula of compaction time when using PVD and without using PVD and the need of Geotextile or Micropile on a pile that has an altitude between 4 meters to 14 meters with a depth of hard ground in the field.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Pre-loading, PVD, Geotextile, Micropile, Tol Krian-Legundi-Bunder-Manyar |
| Subjects: | 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, Environmental, and Geo Engineering > Civil Engineering > 22201-(S1) Undergraduate Theses |
| Depositing User: | Ocvan Helmi Nugroho |
| Date Deposited: | 23 Jun 2021 08:04 |
| Last Modified: | 23 Jun 2021 08:04 |
| URI: | http://repository.its.ac.id/id/eprint/54882 |
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