WIDITAMA, RADITYA (2015) PERENCANAAN ALTERNATIF PERBAIKAN LERENG JALUR TENGGARONG – SAMARINDA (STA. 9 +071 – STA. 9 +119). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kota Tenggarong adalah ibukota kabupaten Kutai
Kartanegara, provinsi Kalimantan Timur, Indonesia, yang
berada di pulau Kalimantan. Tenggarong terbelah dua oleh
sebuah sungai besar bernama sungai mahakam. Dalam
menjalankan aktivitas ekonomi dan administratif, Tenggarong
banyak bergantung kepada Kota Samarinda yang merupakan
Ibukota provinsi Kalimantan Timur.Demi kelancaran kegiatan
ekonomi dan administrasi Tenggarong, jalur penghubung
Tenggarong-Samarinda yang cepat dan efektif adalah mutlak.
Salah satu jalur penghubung adalah melalui perbukitan.
Kelongsoran merupakan masalah yg umum terjadi pada lerenglereng
pada jalur ini. Oleh karena itu penanganan kelongsoran
yang efektif sangat dibutuhkan. Penulis berniat untuk menemukan
alternatif perbaikan lereng yang dapat digunakan untuk
mengatasi kelongsoran yang terjadi pada sebuah lereng pada
jalur ini (STA.9 +071 – STA.9 +119).
Terdapat dua pilihan perkuatan yaitu kombinasi
Geotestile dan Subdrain atau Ground Anchor dan geotekstile.
Geotekstile adalah sebuah produk planar yang dibuat dari
material polimer yang digunakan pada tanah, batuan, bumi, atau
rekayasa geoteknik lainnya yang berhubungan dengan material
sebagai salah satu bagian dari man-made project, struktur, atau
sistem.Ground Anchor dalam banyak hal dipergunakan untuk
melawan tekanan tanah seperti turap ataupun tembok penahan
iv
tanah. Sedangkan Subdrain berguna sebagai drainase yang
berfungsi menjaga agar kadar air tanah seminum mungkin
sehingga meningkatkan nilai SF dan memperpanjang usia
perkuatan lereng. Subdrain menggunakan kerikil ayakan #4 dan
Geotekstile non wovan.
Dalam perencanaan Geotekstile-Subdrain dipustuskan
meletakkan subdrain pada kedalaman 6m dari permukaan tanah
STA. 9+110. Desain ini membutuhkan biaya Rp. 802.278.925,00.
Sedangkan pada perencanaan Grround Anchor – Geotekstile
membutuhkan biaya Rp 5.605.688.109,89. Kedua pilihan
perkuatan ini diperhitungkan kembali dengan software Geoslope
dan ditarik kesimpulan perkuatan akan menggunakan
perencanaan Geotekstile-Subdrain yang diperkuat anchor.
Desain ini membutuhkan 72 roll Geotekstile, 207 m3 kerikil, dan
19 buah anchor. Desain ini membutuhkan biaya Rp.
5.343.034.017,00 ===== Tenggarong City, which is located in Borneo Island, is
the capital of Kutai Kartanegara, East Borneo, Indonesia.
Tenggarong is divided by a big river named Mahakam River. In
running its economic and administrative activity, Tenggarong is
still dependent on Samarinda City which is the capital of East
Borneo. In order to run its economic and administrative activity
properly, the existence of effective and fast connector road is an
absolute need. There are two road which connect Tenggarong
and Samarinda. The first road is the old one which go along the
side of Mahakam River. The second one is the new one which is
wider and shorter than the old one. This road don’t go along the
edge of Mahakam River, it is laid accross hills range between
Tenggarong and Samarinda. Landslide is common to happen to
the slope of the hills. Therefore, the effective treatment to repair
the landslide is needed. The Author is willing to find some
alternatives of slope repair which can be used to repair a
landslide in this road (STA.9 +71 – STA.9 +119).
There are two options, namely a combination of
geotextile reinforcement and Subdrain or Ground Anchor and
geotekstile. Geotekstile is a planar product made from a polymer
material that is used in soil, rock, earth, or other geotechnical
engineering related material as one part of a man-made project,
structure, or sistem.Ground Anchor in many cases used to fight
ground pressure as plaster or retaining wall. In this method of
vi
drilling is done in the soil a good foundation consisting of a layer
of sand, a layer of the gravel, a layer of fine-grained or rocks are
weathered, as well as a section that resist gravity as the mixture
of cement with steel cables or cement with steel rods inserted into
the hole drilling results is then accompanied by a tensile force
thereafter to strengthen the construction. While useful as a
drainage Subdrain that serves to keep the soil moisture content of
my drinking may thus increasing the value of SF and extend the
life of the slope reinforcement. Subdrain using gravel sieve # 4
and non-wovan geotextile.
In planning Geotextile-Subdrain decided Subdrain laid at
a depth of 6 m from ground level STA. 9 + 110.. This design
requires a cost of Rp. 917.490.175,00. While in the planning
Ground Anchor - Geotekstile requires Rp. 5.539.153.985,15.
After recalculated by geoslope it was decided that Geotextile-
Subdrain option that reinforced by Ground Anchor will be used.
This design requires 72 roll Geotekstile, 207 m3 of gravel, and 19
pieces of anchor. This design requires a cost of Rp.
5.343.034.017,00.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Lereng, longsor, ground anchor, geotextile,subdrain, Slope, slide |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 03 Jan 2017 02:48 |
| Last Modified: | 24 Aug 2018 07:25 |
| URI: | http://repository.its.ac.id/id/eprint/1252 |
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