EMAIL: PASSWORD:
Front Office
UPT. PERPUSTAKAAN
Institut Teknologi Sepuluh Nopember Surabaya


Kampus ITS Sukolilo - Surabaya 60111

Phone : 031-5921733 , 5923623
Fax : 031-5937774
E-mail : libits@its.ac.id
Website : http://library.its.ac.id

Support (Customer Service) :
timit_perpus@its.ac.id




Welcome..guys!

Have a problem with your access?
Please, contact our technical support below:
LIVE SUPPORT


Moh. Fandika Aqsa


Davi Wahyuni


Tondo Indra Nyata


Anis Wulandari


Ansi Aflacha




ITS » Paper and Presentation » Geoteknik S2
Posted by dee@its.ac.id at 12/02/2015 22:57:46  •  1355 Views


ANALISA KELONGSORAN DENGAN METODE GEOLISTRIK TAHANAN JENIS PADA TANAH RESIDUAL NGANTANG KABUPATEN MALANG

SLIDE ANALYSIS OF RESIDUAL SOIL BY USING GEOELECTRIC RESISTIVITY METHOD AT NGANTANG DISTRICT OF MALANG

Author :
KUSUMASTUTI, DYAH PRATIWI ( 3111201003 )




ABSTRAK

Wilayah daratan Indonesia sebagian besar merupakan struktur permukaan bumi dengan perbedaan elevasi yang cukup tinggi seperti daerah pegunungan maupun perbukitan. Pada umumnya daerah tersebut dilapisi oleh tanah residual yang sangat rawan mengalami kelongsoran. Metode yang digunakan untuk menyelidiki kelongsoran khususnya untuk melihat perlapisan di bawah muka tanah dan menentukan ketebalan lapisan yang potensi longsor antara lain metode pengeboran metode pengambilan contoh tanah metode uji SPT Standard Penetration Test metode uji sondir Dutch Cone Penetration Test dan metode yang beberapa tahun terakhir lebih sering digunakan adalah metode geolistrik tahanan jenis. Penelitianinibertujuanmengidentifikasikestabilandarilerengdenganmenggun akanmetodegeolistriktahananjenis.Lokasipenelitianterletak di DusunSongkorejo DesaJombok KecamatanNgantang Kabupaten Malang.Penelitian yang dilakukanterdiridaripenelitian di lapanganpadamusimkemaraudanmusimhujan.Hasilanalisakestabilanlerengdengan menggunakanmetodegeolistriktahananjenisakandibandingkandengananalisakestab ilandenganmetodegeoteknikyaitumetodekestabilan lereng menerus tanpa rembesan. Dari hasil analisis pada penelitian ini diketahui bahwa pada wilayah studi terdapat 2 rekahan di lintasan 1 2 rekahan di lintasan 2 dan 1 rekahan di lintasan 3. Dari perhitungan didapat faktor keamanan metode geofisika dan metode geoteknik kestabilan lereng menerus tanpa rembesan diperoleh perbandingan atau selisih kurang dari 10 untuk musim kemarau atau kondisi inisialyaitu 774 sedangkan perbandingan atau selisih faktor keamanan untuk musim hujan atau akibat pembasahan 75 paling kecil adalah 681 dan paling besar adalah 974. Untuk perbandingan atau selisih faktor keamanan metode geofisika dan metode geoteknik analisis dengan Plaxis diperoleh selisih lebih dari 10 yaitu selisih paling kecil sebesar 469 dan terbesar 9922 untuk musim kemarau atau kondisi inisial sedangkan untuk musim hujan atau pembasahan 75 selisih terkecil 116 dan terbesar 9189. Untuk faktor keamanan metode geofisika yang sesuai dengan faktor keamanan metode geoteknik pada penelitian ini adalah analisis faktor keamanan dengan kestabilan lereng menerus tanpa rembesan karena persamaan empiris yang diusulkan berdasarkan hasil perhitungan geoteknik model infinite slope dengan kelongsoran dangkal dan sangat lokal.


ABSTRACT

Indonesias land area is largely the structure of the earths surface with a high enough elevation differences such as mountainous or hilly regions. In general the area covered by residual soil highly vulnerable to landslide. The method used to investigate the landslide especially to see the bedding under the soil surface and determine the thickness of the layer of potential landslides among other methods of drilling soil sampling methods SPT Standard Penetration Test methods sondir Dutch Cone Penetration Testtest methods and methods of the past few years more frequently used method of geoelectric resistivity. This study aims to identify slopes stability by using geoelectric resistivity method. Location of the study in Songkorejo Jombok Village Ngantang Malang. The study consists of research conducted in the field during the dry season and the wet season. The results of the slope stability analysis using geoelectric resistivity method will be compared with the analysis of geotechnical stability method is the method of constant slope stability without seepage. From the analysis in this research noted that the study area had 2 cracks in the track 1 2 cracks in track 2 and 1 cracks in track 3. Obtained from the safety factor calculation of geophysical methods and geotechnical methods without seepage slope stability constant for the comparison or difference of less than 10 for the dry season or the initial conditions is 7.74 while the ratio or the difference in the safety factor for the wet season or due to wetting of the smallest 75 was 6.81 and 9.74 at most. For comparison or difference in analysis safety factor of geophysical method and geotechnical methods with Plaxis obtained more than 10 difference is the smallest difference of 4.69 and 99.22 for the largest dry season or while the initial conditions for the wet season or wetting 75 difference The smallest and the largest 1.16 91.89. For safety factors of geophysical method in accordance with safety factor ofgeotechnical methods in this study is the analysis of the slope stability safety factor consistently without seepage because the empirical equation proposed based on the results of the geotechnical calculation model of infinite slope with shallow landslide and very local.



Keywordsmetode geolistrik tahanan jenis; kestabilan lereng; faktor keamanan; lokasi: Jombok; Ngantang Malang
 
Subject:  Erosi
Contributor
  1. Dr. Ir. Ria Asih Aryani Soemitro, M.Eng
  2. Dr. Dwa Desa Warnana, S.Si., M.Si
Date Create: 16/01/2014
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-paper-31121140006327
Collection ID: 31121140006327
Call Number: RTS 551.307 Kus a


Source
Paper and Presentation of Civil Engineering, RTS 551.307 Kus a, 2015

Coverage
ITS Community

Rights
Copyright @2015 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




[ Download - Summary ]

ITS-paper-31121140006327-35948.pdf




 Similar Document...




! ATTENTION !

To facilitate the activation process, please fill out the member application form correctly and completely

Registration activation of our members will process up to max 24 hours (confirm by email). Please wait patiently

POLLING

Bagaimana pendapat Anda tentang layanan repository kami ?

Bagus Sekali
Baik
Biasa
Jelek
Mengecewakan





You are connected from 54.225.59.242
using CCBot/2.0 (http://commoncrawl.org/faq/)



Copyright © ITS Library 2006 - 2017 - All rights reserved.
Dublin Core Metadata Initiative and OpenArchives Compatible
Developed by Hassan