PERENCANAAN ALTERNATIF PERBAIKAN LERENG JALUR TENGGARONG – SAMARINDA (STA. 9 +071 – STA. 9 +119)

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 > (S1) Undergraduate Theses
Depositing User: - Davi Wah
Date Deposited: 03 Jan 2017 02:48
Last Modified: 03 Jan 2017 02:48
URI: http://repository.its.ac.id/id/eprint/1252

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