KORELASI GEOLISTRIK DALAM MENDUGA RENCANA KEDALAMAN PENGUJIAN STANDARD PENETRATION TEST (SPT) DI KANTOR DINAS PEKERJAAN UMUM PROVINSI PAPUA

KURNIAWAN, YUSUF (2023) KORELASI GEOLISTRIK DALAM MENDUGA RENCANA KEDALAMAN PENGUJIAN STANDARD PENETRATION TEST (SPT) DI KANTOR DINAS PEKERJAAN UMUM PROVINSI PAPUA. Masters thesis, Institut Teknologi Nasional Malang.

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Abstract

ABSTRAK Yusuf Kurniawan, Program Studi Magister Teknik Sipil, Program Pascasarjana, Institut Teknologi Nasional Malang, Februari 2023, Korelasi Geolistrik Dalam Menduka Rencana Kedalaman Pengujian Standard Penetration Test (SPT) Di Kantor Dinas Pekerjaan Uumum Provinsi Papua, Tesis, Pembimbing: (I) Dr. Ir. Lies Kurniawati Wulandari, MT., (II) Ir. Maranatha Wijayaningtyas, ST, MMT, PhD. Fondasi adalah bagian terendah dari bangunan yang meneruskan beban bangunan ke tanah atau batuan dibawahnya. Tanah harus memiliki daya dukung yang baik agar mampu menerima beban bangunan yang disalurkan oleh fondasi. Diperlukan penyelidikan tanah guna mengetahui properti, daya dukung tanah yang baik dan lokasi kedalamannya. Salah satunya adalah pengujian Standard Penetration Test (SPT) pada kedalam-kedalaman tertentu. Untuk mengetahui berapa dugaan rencana kedalaman pengujian SPT tersebut diperlukan metode tertentu yang cepat, murah dan nondestruktif sebagai acuan rencana kedalam. Metode yang dimaksud adalah Geolistrik yang dapat mengetahui resistivitas material, jenis tanah atau batuan, kekerasan, kedalaman dan ketebalan masing-masing lapisan, jenis air tanah, dan sebagainya. Dengan melakukan korelasi, hubungan timbal balik atau sebab akibat antara nilai resistivitas (Ωm) material tanah dari hasil Golistrik dengan nilai N-SPT, diharapkan dapat diketahui besaran nilai minimal resistivitas (Ωm) yang memenuhi nilai N-SPT≥ 50 sebagai dasar dugaan rencana kedalaman pemboran pengujian SPT. Metode yang digunakan untuk mengetahui korelasi tersebut digunakan metode Regresi Linier Sederhana. Dari hasil korelasi metode Regresi Linier Sederhana diperoleh nilai resistivitas minimum material tanah > 121,27 �� diperoleh dari nilai atau jumlah (N) tumbukan Standard Penetration Test (N-SPT) ≥ 50. Sehingga dugaan rencana kedalaman pemboran pengujian Standard Penetration Test (SPT) diambil dari kedalaman material tanah atau batuan yang memiliki angka atau nilai resistivitas > 121,27 �� serta memiliki ketebalan lapisan > 6 meter. Kata kunci: fondasi, geolistrik, kedalaman, korelasi, resistivitas, standard penetration test ABSTRACT Yusuf Kurniawan, Program Studi Magister Teknik Sipil, Program Pascasarjana, Institut Teknologi Nasional Malang, Februari 2023, Korelasi Geolistrik Dalam Menduka Rencana Kedalaman Pengujian Standard Penetration Test (SPT) Di Kantor Dinas Pekerjaan Uumum Provinsi Papua, Tesis, Advisor: (I) Dr. Ir. Lies Kurniawati Wulandari, MT., (II) Ir. Maranatha Wijayaningtyas, ST, MMT, PhD. A foundation is the lowest part of a building which distributes the building’s load to the soil or to the rocks below. The soil needs to have a good bearing capacity to be able to hold the loads of a building that is being distributed by the foundation. Soil investigation is needed to understand the contents of it, the soil carrying capacity and the depth of the soil. One of the test is the Standard Penetration Test (SPT) at certain depths. In order to find out how much the planned depth of the SPT test is, a certain fast, cheap and non-destructive method is needed as a reference for the depth plan. That method is Geoelectric, which can determine the resistivity of the material, the type of soil or rock, the hardness, the depth and thickness of each layer, the type of ground water, and so on. By performing a correlation, reciprocal or cause and effect between the resistivity value (Ωm) of the soil material from the Goelectric results and the N-SPT value, it is expected that the minimum resistivity value (Ωm) that meets the N-SPT value ≥ 50 can be known as the basis for the estimated design for the depth of SPT drilling test. The method used to determine the correlation is the Simple Linear Regression method. From the correlation results of the Simple Linear Regression method, the minimum resistivity value of soil material > 121.27 Ωm is obtained from the value or number (N) of collisions of the Standard Penetration Test (N-SPT) ≥ 50. So that the estimated drilling depth plan for the Standard Penetration Test (SPT) test taken from the depth of soil or rock material that has a resistivity number or value > 121.27 Ωm and has a layer thickness of > 6 meters. Key word: correlation, dept, fondation, geoelectric, resistivity, standard penetration test

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Key word: correlation, dept, fondation, geoelectric, resistivity, standard penetration test
Subjects:	Engineering > Civil Engineering
Divisions:	Program Pasca Sarjana > Teknik Sipil S2 > Teknik Sipil S2(Tesis)
Depositing User:	Users 1115 not found.
Date Deposited:	07 Mar 2023 03:47
Last Modified:	07 Mar 2023 03:49
URI:	http://eprints.itn.ac.id/id/eprint/10776

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