IDENTIFIKASI DAYA DUKUNG TANAH DAN TINGKAT KOROSIFITAS BAWAH PERMUKAAN MENGGUNAKAN INTEGRASI DATA GEOLISTRIK, STANDART PENETRATION TEST DAN CONE PENETRATION TEST PADA DAERAH “X”, PROVINSI PAPUA BARAT

TARIGAN, RYAN SURYA DHARMA (2025) IDENTIFIKASI DAYA DUKUNG TANAH DAN TINGKAT KOROSIFITAS BAWAH PERMUKAAN MENGGUNAKAN INTEGRASI DATA GEOLISTRIK, STANDART PENETRATION TEST DAN CONE PENETRATION TEST PADA DAERAH “X”, PROVINSI PAPUA BARAT. Skripsi thesis, UPN Veteran Yogyakarta.

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Abstract

ABSTRAK
IDENTIFIKASI DAYA DUKUNG TANAH DAN TINGKAT
KOROSIFITAS BAWAH PERMUKAAN MENGGUNAKAN
INTEGRASI DATA GEOLISTRIK, STANDART
PENETRATION TEST DAN CONE PENETRATION TEST PADA
DAERAH “X”, PROVINSI PAPUA BARAT
Oleh
Ryan Surya Dharma Tarigan
NIM: 115210084
(Program Studi Sarjana Teknik Geofisika)
Penelitian daya dukung tanah dan tingkat korosivitas dilakukan di sebuah daerah
terletak pada Provinsi Papua Barat. Analisis daya dukung tanah dan tingkat
korosifitas tanah berguna sebagai langkah mitigasi dan meminimalisir kerugian
remediasi akibat kegagalan struktur pondasi dan kerusakan pipa akibat korosif
dalam jangka waktu panjang. Pengukuran geolistrik dilakukan sebanyak 12 lintasan
dengan panjang lintasan 235 meter dan spasi elektrode 5 meter. Pengukuran
Standart Penetration Test (SPT) dilakukan sebanyak 6 titik dan Cone Penetration
Test (CPT) sebanyak 6 titik. Analisis daya dukung tanah menggunakan hasil uji in
situ berupa Standart Penetration Test dan Cone Penetration Test. Sedangkan
analisis tingkat korosifitas berdasarkan pada nilai resistivitas bawah permukaan
dengan pengukuran metode geolistrik konfigurasi wenner schlumberger. Jenis
litologi pada daerah penelitian berdasarkan integrasi data lubang bor dan geolistrik
yaitu berupa pasir sedang(>200 Ωm), pasir halus-sangat halus (80-200 Ωm),
lempung (15-80 Ωm), dan lumpur (<15 Ωm). Pada hasil uji SPT dan CPT
menunjukkan nilai yang semakin tinggi seiring bertambahnya kedalaman.
Kedalaman pondasi dalam direkomendasikan pada tingkat kekerasan sangat kaku
dengan nilai N-SPT lebih dari 50 tumbukan dengan interval kedalaman 18 hingga
28 meter pada litologi lempung. Untuk pondasi dangkal, direkomendasikan pada
area dengan nilai perlawanan konus (qc) 20-40 kg/cm² dengan tingkat kekerasan
yaitu tanah kaku di kedalaman maksimal 3 meter pada area GRS. Berdasarkan
analisis nilai resistivitas pada daerah penelitian memiliki tingkat korosifitas yaitu
korosif-sangat korosif dengan nilai resistivitas <20 Ωm pada litologi lumpur yang
mempunyai kandungan mineral konduktif dan kadar air tinggi.
Kata kunci: Cone Penetration Test, Daya Dukung Tanah, Geolistrik, Kekerasan,
Korosivitas, Standart Penetration Test.
ABSTRACT
IDENTIFICATION OF SOIL BEARING CAPACITY AND
SUBSURFACE CORROSIVENESS LEVEL USING
INTEGRATION OF GEOELECTRIC DATA, STANDARD
PENETRATION TEST AND CONE PENETRATION TEST IN
AREA “X”, WEST PAPUA PROVINCE
By
Ryan Surya Dharma Tarigan
NIM: 115210084
(Geophysics Engineering Undergraduated Program)
Soil bearing capacity and corrosivity studies are conducted in an area located in
West Papua Province. Analysis of soil bearing capacity and soil corrosivity level
are useful as a mitigation step and minimizes remediation losses due to foundation
structure failure and pipe damage due to corrosivity in the long term. Geoelectric
measurement is conducted in 12 lines with trace length 235 meters and space of
electrode is 5 meters. Standart Penetration Test (SPT) measurement is carried out
at 6 points and Cone Penetration Test (CPT) at 6 points. Analysis of soil bearing
capacity uses the results of in-situ tests in the form of Standard Penetration Test
and Cone Penetration Test. While the corrosivity level analysis is based on the
subsurface resistivity value with the measurement of the wenner schlumberger
configuration geoelectric method. The type of lithology in the research area based
on the integration of borehole and geoelectric data are medium sand (>200 Ωm),
very fine-fine sand (80-200 Ωm), clay (15-100 Ωm), and mud (<15 Ωm). The SPT
and CPT test results show higher values due to the depth increases. Deep
foundation depths are recommended at very stiff hardness levels with N-SPT values
more than 50 blows with depth intervals from 18 to 28 meters in clay lithology. For
shallow foundation, it is recommended in areas with a conus resistance value (qc)
20-40 kg/cm² with a hardness level that is stiff at a depth maximum 3 meters in the
GRS area. Based on the analysis of resistivity values in the study area, the
corrosivity level is corrosive to very corrosive with a resistivity value of less than
20 Ωm in mud lithology which has a conductive mineral content and high water
content.
Keywords: Cone Penetration Test, Corosivity, Geoelectric, Hardness, Soil Bearing
Capacity, Standart Penetration Test.

Item Type:	Tugas Akhir (Skripsi)
Uncontrolled Keywords:	Cone Penetration Test, Corosivity, Geoelectric, Hardness, Soil Bearing Capacity, Standart Penetration Test.
Subjek:	Q Science > QE Geology
Divisions:	Fakultas Teknologi Mineral dan Energi > (S1) Teknik Geofisika
Depositing User:	Eko Yuli
Date Deposited:	27 Aug 2025 04:44
Last Modified:	27 Aug 2025 04:44
URI:	http://eprints.upnyk.ac.id/id/eprint/43541

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