Electronic Theses and Dissertation

Tesis
ANALISIS KELONGSORAN DAN FAKTOR KEAMANAN TERHADAP
KERUSAKAN BADAN JALAN DIPERKUAT DENGAN RETAINING WALL
TIPE KANTILEVER DAN MINI PILE MENGGUNAKAN PROGRAM PLAXIS
VERSI 8.6

Banta Usman
NIM.1704201010051
Program Studi Magister Teknik Sipil
Jurusan Teknik Sipil-Fakultas Teknik Universitas Syiah Kuala
Abstrak
Ruas Jalan Batas Aceh Tengah/Gayo Lues-Blangkejeren Km 438+800 yang
berada di Kabupaten Gayo Lues merupakan salah satu ruas jalan Nasional lintas
tengah yang menghubungkan Kota Takengon dengan Kabupaten Gayo Lues dan
Aceh Tenggara menuju Sumatera Utara. Ruas jalan tersebut sering terjadi tanah
longsor karena berada di daerah pegunungan. Peristiwa tanah longsor yang terjadi
disebabkan oleh intensitas curah hujan yang tinggi dan aliran air pada drainase
badan jalan serta tidak adanya bangunan pengarah aliran air pada ujung drainase,
sehingga air terbuang di bahu jalan dan air meresap ke badan jalan yang dapat
menyebabkan berat volume tanah bertambah. Hal ini dapat meningkatkan gaya
pendorong menjadi besar akibat bertambahnya massa tanah pada tubuh lereng
tersebut. Dengan demikian, maka diperlukan analisis kelongsoran serta
penanganan dengan menggunakan dinding penahan tanah
Kata kunci : Tanah Longsor, Plaxis 2D, Kantilever, MiniPile, Faktor Keamanan

i

Thesis
ANALYSIS OF LANDSLIDES AND SAFETY FACTORS ON ROAD DAMAGE
STRENGTHENED WITH RETAINING WALL TYPE CANTILEVER AND MINIPILE
USING PLAXIS PROGRAM VERSION 8.6

Banta Usman
NIM.1704201010051
Civil Engineering Magister Study Program
Department of Civil Engineering-Faculty of Engineering
Syiah Kuala University
Abstract
The Central Aceh / Gayo Lues-Blangkejeren Border Road Section Km 438 + 800 located in
Gayo Lues Regency is one of the National roads that connects Takengon City and Gayo Lues
Regency and also Southeast Aceh towards North Sumatra. Landslides often occur in this land
area. The landslides caused by the complexity of high rainfall and water flow in the drainage of
the road which there are no buildings that direct the water flow to the drainage. The water was
wasted on the roadside and seep into the road which soil volume increased as the result. This has
been increased the total of the soil mass on the slope. Thus, it is necessary to analyze and
overcome the landslide by using cantilever and minipile type as the soil retaining wall. This
analysis aims to find out the slip surface and the number of safety factors. Analysis will be
carried out to understand the slope’s slip surface and the number of safety factors using the 2D
Plaxis program. Based on the research, the calculation of slope stability before and after
retrofitting was done at 438 + 800 Km, 438 + 825 Km and 438 + 850 Km. The results of the
analysis of the slopes under existing conditions by using the 2D Plaxis program at all points
obtained from the number of safety factors is 1.087, 1,011 and 1,008 with unsafe slope
conditions
Keywords: Landslide, 2D Plaids, Cantilever, Minipile, Safety Factor (
ii

Tidak Tersedia Deskripsi