Identifikasi Pipa Metal Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (GPR)

Luga, Arkadia Luga; Muliadi, Muliadi Muliadi; Ivansyah, Okto

doi:10.26418/pf.v7i1.32286

Cited by 5 publications

(4 citation statements)

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“…The higher the conductivity value, the higher the dielectric constant value, and vice versa. Materials with high dielectric constant values will produce high amplitude values, while materials with low dielectric constant values will produce low amplitude values (Luga, 2019).…”

Section: 1mentioning

confidence: 99%

Delineation of Nickel Laterite Deposits in “DCV” Block Southeast Sulawesi Based on Data Analysis of Ground Penetrating Radar (GPR) Method

Yatini,

Getsimany

2024

Jambura Geosci. Rev.

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The need for nickel is very intensive in the development of upstream to downstream industries so that domestic consumption of nickel ore will increase in the coming years, therefore domestic downstream is increasingly being improved. Overcoming the problem of the high demand for nickel in Indonesia can be done by conducting exploration and exploitation to support the downstream of nickel. Exploration of nickel laterite can be accomplished with geophysical methods that aim to obtain subsurface data from nickel laterite deposits. The Ground Penetrating Radar (GPR) geophysical method is one of the non-destructive methods that can be applied to determine the subsurface conditions of nickel laterite deposits based on physical properties in the form of dielectric constants and reflection patterns and amplitude contrasts produced on radargrams. The nickel laterite deposits can be separated into 4 layers based on Ground Penetrating Radar (GPR) data analysis: bedrock, saprolite, limonite, and topsoil. Based on GPR measurements, the average dielectric constant value of topsoil is 6.8 mS/m, the limonite layer is 10.87 mS/m, the saprolite layer is 12.37 mS/m, and bedrock is 7.87 mS/m. It can be seen that the saprolite layer has a high conductivity so that the dielectric constant value is also high, this is influenced by the very high nickel content in this layer. The depth of bedrock in the research area varies from 20 - 40 meters, the thickness of topsoil is dominated in the value range of 3.6 - 5 meters, while the thickness of the laterite layer which is the main target of nickel laterite mining includes saprolite and limonite layers which have varying values of 15 - 40 meters where the distribution of the thickness of this layer is in the eastern and central parts of the research area.

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Section: 1mentioning

confidence: 99%

Delineation of Nickel Laterite Deposits in “DCV” Block Southeast Sulawesi Based on Data Analysis of Ground Penetrating Radar (GPR) Method

Yatini,

Getsimany

2024

Jambura Geosci. Rev.

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“…While the weakness of this method is that the depth of penetration is limited to only a few tens of meters depending on the frequency of the transmitter antenna used. GPR devices can send electromagnetic wave pulses with a frequency between 10-1000 MHz [14]. In some modern systems, they are equipped with an onboard computer that facilitates data processing by obtaining data in the field and postrecording [15].…”

Section: Figure 2 Gpr Work Systemmentioning

confidence: 99%

Identification of Cavity Zone Under the Surface of the Badut Temple Foundation Using the GPR (Ground Penetrating Radar) Method

Luthfin¹,

Cahyadi²,

Jufri³

et al. 2021

Advances in Social Science, Education and Humanities Research

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In the previous research in Badut temple, it resulted in the conclusion that on the research path, there is a Badut temple foundation, at a depth of 0 m -1.5m, which is square wide. The results of this study require further research to detect the presence of a cavity zone because the presence of cavity zones has the potential for subsidence of the temple foundation. This study aims to determine the distribution of cavity zones under the temple foundation. Research in the first location around the temple building was carried out by scanning 8 straight lines, then combined and analyzed. Based on the results of the analysis, it is found that the cavity zones are spread from trajectory 1-8. The largest cavity zone is located in the corner of the intersection of lanes 1 and 2. The second location research was carried out in the pool in front of the temple; the results showed that the pool floor was dominated by the cavity and watery zone. Only a few points showed buried rock, which was shown by reddish-yellow color. Based on the data analysis, it can be concluded that around the temple, there are still many cavity zones, and there are still some buried rocks. As for the pool area, it is dominated by a cavity zone, so it is possible that there is still a lot of empty space under the ground floor of the pool, and it is watery.

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“…Data GPR (radargram) menampilkan refleksi gelombang elektromagnetik terhadap kondisi di bawah permukaan bumi. Refleksi ditunjukkan oleh variasi warna yang merupakan kontras (perbedaan) nilai amplitudo gelombang di bawah permukaan [5]. Nilai amplitudo dipengaruhi oleh nilai konduktivitas listrik material.…”

Section: Latar Belakangunclassified

Identifikasi Ketebalan Gambut Berdasarkan Parameter Fisis pada Metode Ground Penetrating Radar (GPR) di Tulung Selapan, Ogan Komering Ilir

Evaliani,

Nurhasanah,

Nugroho

2021

Prism. Fis.

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Penelitian lapisan gambut penting untuk pengolahan lahan gambut lebih lanjut. Pengukuran kedalaman dan ketebalan lapisan tanah gambut menjadi tujuan dalam penelitian ini. Metode ground penetrasi radar (GPR) dengan menggunakan alat Ultra GPR yang digunakan karena sifatnya yang praktis dan ekonomis serta akurat dalam mengukur kedalaman gambut. Ultra GPR multi frekuensi digunakan untuk mengukur kedalaman gambut. Parameter pengukuran meliputi amplitudo dan kecepatan rambat gelombang elektromagnetik. Data GPR berupa radargram yang diambil dari lahan gambut di Penyabungan, Kecamatan Tulung Selapan, Kabupaten Ogan Komering Ilir, Provinsi Sumatera Selatan.Kecepatan rambat sungai yang diperoleh dari pengolahan data manual dan kedalaman lapisan yang diperoleh dari radargram. Perhitungan kecepatan rambat gelombang pada tanah gambut di lokasi tersebut diperoleh nilai 0,03781 m / ns. Kedalaman gambut pada total lintasan antara 4,27 meter sampai dengan 6,64 meter. Gambut paling tebal berada di bagian Tenggara lokasi lintasan SP15 dengan ketebalannya 5,86 - 6,64 meter. Bagian paling tipis berada pada lintasan SP07 dengan posisi di Barat. Sehingga terlihat bahwa kedalaman gambut tergolong sangat dalam dan ketebalan gambut dari yang tipis hingga tebal berada di bagian Barat menuju ke Tenggara.

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Identifikasi Pipa Metal Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (GPR)

Cited by 5 publications

References 0 publications

Delineation of Nickel Laterite Deposits in “DCV” Block Southeast Sulawesi Based on Data Analysis of Ground Penetrating Radar (GPR) Method

Delineation of Nickel Laterite Deposits in “DCV” Block Southeast Sulawesi Based on Data Analysis of Ground Penetrating Radar (GPR) Method

Identification of Cavity Zone Under the Surface of the Badut Temple Foundation Using the GPR (Ground Penetrating Radar) Method

Identifikasi Ketebalan Gambut Berdasarkan Parameter Fisis pada Metode Ground Penetrating Radar (GPR) di Tulung Selapan, Ogan Komering Ilir

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